12 months after initial approval of the Section 26.49 Subpart A - General 27.1 Applicability. 27.2 Special retroactive requirements. Subpart B - Flight (a) Compliance plan. Except for applicants for type certific... 2008, each person identified in SectionSection 26.43, 26.45, and 26.47, must submit a compliance plan consisting o... 26.45(e), and 26.47(e), as applicable. (b) Compliance dates for compliance 2008. (c) Compliance Plan Implementation. PART 27 - AIRWORTHINESS STANDARDS: 27.21 Proof of compliance. 27.25 Weight limits. 27.27 Center of gravity limits. 27.29 Empty weight and corresponding center of gravity. 27.31 Removable ballast. 27.33 Main rotor speed and pitch limits. 27.45 General. ...

14 CFR Ch. I (1-1-18 Edition) 27.337 Limit maneuvering load factor. 27.339 Resultant limit maneuvering loads. 27.341 Gust loads. 27.351 Yawing conditions. 27.361 Engine torque. 27.619 27.621 27.623 27.625 27.629 27.391 27.395 27.397 27.399 27.411 27.427 27.653 Pressure venting and drainage of 27.659 Mass balance. 27.661 Rotor blade clearance. 27.663 Ground resonance prevention means. ...

27.863 27.865 27.1091 27.1093 27.1121 27.1123 27.871 27.873 Subpart E - Powerplant 27.1141 Powerplant controls: general. 27.1143 Engine controls. 27.1145 Ignition switches. 27.1147 Mixture controls. 27.1151 Rotor brake controls. 27.1163 Powerplant accessories. 27.901 27.903 27.907 27.917 Design. 27.921 Rotor brake. 27.923 Rotor drive system and control mechanism tests. ...

Section 27.1 14 CFR Ch. I (1-1-18 Edition) 27.1387 Position light system dihedral angles. 27.1389 Position light distribution and intensities. 27.1391 Minimum intensities in the horizontal plane of forwa... 27.1393 Minimum intensities in any vertical 27.1395 Maximum intensities in overlapping 27.1397 Color specifications. 27.1399 Riding light. 27.1401 Anticollision light system. 44701-44702, 44704. 24, 1964, unless otherwise noted. 27.1411 General. 27.1413 Safety belts. 27.1415 Ditching equipment. 27.1419 Ice protection. 27.1435 Hydraulic systems. 27.1457 Cockpit voice recorders. 27.1459 Flight data recorders. 27.1461 Equipment containing high energy Subpart G - Operating Limitations and ...

Section 27.25 (i) The date the inspection acceptance records, or equivalen... (b) For rotorcraft with a certification 1999 - (i) The number of passenger seats is 18, 1999. 1999] Subpart B - Flight Section 27.21 Proof of compliance. (a) By tests upon a rotorcraft of the (b) By systematic investigation of 1984] Section 27.25 Weight limits. (a) Maximum weight. The maximum (i) The highest weight selected by the (i) The empty weight determined (b) Minimum weight. The minimum (i) The empty weight determined 11:00 Mar 08, 2018

Section 27.27 14 CFR Ch. I (1-1-18 Edition) (i) The lowest weight selected by the (c) Total weight with jettisonable external load. A total we... Section 27.27 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) Section 27.31 1976; Amdt. 25-42, 43 FR 2324, Jan. 16, 1978; 27-44, 73 FR 10998, Feb. 29, 2008; 73 FR 33876, Section 27.33 Main rotor speed and pitch limits. (a) The extremes selected by the applicant; (b) The extremes within which the (c) The extremes within which compliance with the applicable... Section 27.29 Empty (a) The empty weight and corresponding center of gravity mus... (i) Oil; (b) The condition of the rotorcraft at 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1978] ...

Section 27.45 (b) Normal main rotor high pitch limits (c) Normal main rotor low pitch limits (d) Emergency high pitch. If the main (e) Main rotor low speed warning for 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1968; Amdt. 27-14, 43 FR 2324, Jan. 16, 1978] Section 27.45 General. (a) Unless otherwise prescribed, the (b) The performance must correspond (c) The available power must correspond to engine power, not... (d) For reciprocating engine-powered 11:00 Mar 08, 2018

Section 27.49 14 CFR Ch. I (1-1-18 Edition) (e) For turbine engine-powered rotorcraft, the performance, ... (f) For turbine-engine-powered rotorcraft, a means must be p... 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1984] Section 27.49 Performance at minimum operating speed. (a) For helicopters - (i) Takeoff power; (i) For reciprocating engine powered (b) For rotorcraft other than helicopters, the steady rate o... Section 27.51 Takeoff. r.p.m. at the most critical center of (a) May not require exceptional piloting skill or exceptiona... (b) Must be made in such a manner Section 27.65 Climb: all engines operating. (a) For rotorcraft other than helicopters - (i) With maximum continuous power (i) At least 1:10 if the horizontal distance required to tak... (b) Each helicopter must meet the ...

Section 27.87 (i) For standard sea level conditions; (i) At the climb speed selected by the 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1978; Amdt. 27-33, 61 FR 21907, May 10, 1996] Section 27.67 Climb: one engine inoperative. (a) Maximum weight; (b) The critical engine inoperative 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1988] Section 27.71 Autorotation performance. (a) Maximum weight; and (b) Rotor speed(s) selected by the applicant. Section 27.75 (a) The rotorcraft must be able to be (i) Power off, for single engine rotorcraft and entered from... (b) Multiengine rotorcraft must be 1978; Amdt. 27-44, 73 FR 10999, Feb. 29, 2008] Section 27.87 ...

Section 27.141 14 CFR Ch. I (1-1-18 Edition) (b) The applicable power failure conditions are - 7000 feet density altitude or the maximum altitude capabilit... 1968; Amdt. 27-11, 41 FR 55468, Dec. 20, 1976; 27-21, 49 FR 44433, Nov. 6, 1984] 1978; Amdt. 27-21, 49 FR 44433, Nov. 6, 1984; Section 27.143 Controllability and maneuverability. (c) Have any additional characteristic required for night or... Section 27.141 General. (a) Except as specifically required in (b) Be able to maintain any required (a) The rotorcraft must be safely controllable and maneuvera... (i) Takeoff; (v) Autorotation; (b) The margin of cyclic control must (c) Wind velocities from zero to at 11:00 Mar 08, 2018

Section 27.173 (i) Critical Weight; (i) Weight selected by the applicant; (d) Wind velocities from zero to at (e) The rotorcraft, after (1) failure of (i) For the cruise condition, one second, or normal pilot re... (f) For helicopters for which a VNE Section 27.1505(c), compliance must be demonstrated with the... r.p.m.: 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1968; Amdt. 27-14, 43 FR 2325, Jan. 16, 1978; 27-44, 73 FR 10999, Feb. 29, 2008] Section 27.151 (a) Longitudinal, lateral, directional, (b) Control system forces and free Section 27.161 (a) Must trim any steady longitudinal, lateral, and collecti... (b) May not introduce any undesirable discontinuities in con... 1984] Section 27.171 ...

Section 27.175 14 CFR Ch. I (1-1-18 Edition) (b) Throughout the full range of altitude for which certific... (d), the slope of the control position 2008] Section 27.175 Demonstration of static longitudinal stabilit... (a) Climb. Static longitudinal stability must be shown in th... (b) Cruise. Static longitudinal stability must be shown in t... 0.8 VNE + 10 kt or, if VH is less than 0.8 (c) VNE. Static longitudinal stability 10 kt. (d) Autorotation. Static longitudinal (i) Critical weight; (i) Critical weight; 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1968; Amdt. 27-11, 41 FR 55468, Dec. 20, 1976; 27-21, 49 FR 44433, Nov. 6, 1984; Amdt. 27-34, 62 10999, Feb. 29, 2008] Section 27.177 (a) The directional controls must operate in such a manner t... ...

Section 27.307 (c) During the maneuver specified in Section 27.231 Section 27.235 Section 27.239 Section 27.241 Section 27.251 Subpart C - Strength Requirements Section 27.301 (a) Strength requirements are specified in terms of limit lo... (b) Unless otherwise provided, the (c) If deflections under load would Section 27.303 Section 27.305 (a) The structure must be able to (b) The structure must be able to Section 27.307 (a) Compliance with the strength and (b) Proof of compliance with the 11:00 Mar 08, 2018 ...

Section 27.309 14 CFR Ch. I (1-1-18 Edition) 1425) 1968; Amdt. 27-26, 55 FR 7999, Mar. 6, 1990] Section 27.309 (a) The design maximum weight. (b) The main rotor r.p.m. ranges (c) The maximum forward speeds for (d) The maximum rearward and sideward flight speeds. (e) The center of gravity limits corresponding to the limita... (f) The rotational speed ratios between each powerplant and ... (g) The positive and negative limit (a) A limit maneuvering load factor (b) Any positive limit maneuvering Section 27.339 Resultant limit maneuvering (a) The flight load factor must be assumed to act normal to ... (b) Compliance with the flight load 1976] 1976] Section 27.341 11:00 Mar 08, 2018 ...

Section 27.395 Section 27.351 (a) Each rotorcraft must be designed (b) To produce the load required in (c) To produce the load required in 1997] Section 27.361 (a) For turbine engines, the limit (b) For reciprocating engines, the Section 27.391 General. 1997] Section 27.395 Control system. (a) The part of each control system (b) Each primary control system, including its supporting st... 11:00 Mar 08, 2018

Section 27.397 14 CFR Ch. I (1-1-18 Edition) 1990] Section 27.397 (a) Except as provided in paragraph (b) of this section, the limit pilot (b) For flap, tab, stabilizer, rotor 50 pounds nor more than 100 pounds for 2001] Section 27.399 0.75 times those obtained under Section 27.395 (a) In opposition; and (b) In the same direction. Section 27.411 Ground clearance: tail rotor (a) It must be impossible for the tail (b) If a tail rotor guard is required to Section 27.427 (a) Horizontal tail surfaces and their (b) To meet the design criteria of (c) For empennage arrangements 21, 1990] ...

Section 27.485 (b) Critical centers of gravity. The critical centers of gra... Section 27.473 Ground loading (a) For specified landing conditions, (b) Unless otherwise prescribed, for Section 27.725. Section 27.475 Section 27.477 Section 27.479 (a) Attitudes. Under each of the loading conditions prescrib... (b) of this section, the rotorcraft is assumed to be in each... (b) Loading conditions. The rotorcraft Section 27.471. 40:60. (c) Pitching moments. Pitching moments are assumed to be res... Section 27.481 Tail-down landing conditions. (a) The rotorcraft is assumed to be in (b) In this attitude, ground loads are Section 27.483 One-wheel landing conditions. (a) The vertical load must be the (b) The unbalanced external loads ...

Section 27.493 14 CFR Ch. I (1-1-18 Edition) (b) The rotorcraft must be designed (i) For the aft wheels, the side loads Section 27.493 (a) The limit vertical load must be Section 27.479(a)(1); and Section 27.479(a)(2); and (b) The structure must be designed to Section 27.497 Ground loading conditions: (a) General. Rotorcraft with landing (b) Level landing attitude with only the (c) Level landing attitude with all (b) of this section. (d) Maximum nose-up attitude with (e) Level landing attitude with only one (f) Side loads in the level landing attitude. In the attitud... (b) and (c) of this section. In this condition, the side loa... (i) For the forward wheels, 0.8 times (f)(1) of this section must be applied - (i) At the ground contact point with ...

Section 27.501 (g) Braked roll conditions in the level (i) 1.0, for the attitude specified in (i) 0.8 times the vertical load; and (h) Rear wheel turning loads in the (h)(1) of this section must be applied to (i) Through the axle, if there is a (i) Taxiing condition. The rotorcraft Section 27.501 Ground loading conditions: (a) General. Rotorcraft with landing 27.475. (i) A drop height of 1.5 times that (i) The gear in its most critically deflected position for t... (b) Vertical reactions in the level landing attitude. In the... (c) Drag reactions in the level landing (d) Sideloads in the level landing attitude. In the level at... (i) Equal to the vertical loads obtained in the condition sp... 11:00 Mar 08, 2018

Section 27.505 14 CFR Ch. I (1-1-18 Edition) (i) Inward acting sideloads; and (e) One-skid landing loads in the level (f) Special conditions. In addition to (b) and (c) of this section, the rotorcraft must be designed... (i) Equal to 1.33 times the maximum (i) Applied only to the skid tube and 1968; Amdt. 27-26, 55 FR 8000, Mar. 6, 1990] Section 27.505 (a) Up-load conditions in which - (b) A side-load condition in which a (c) A torque-load condition in which Section 27.521 Section 27.473(b) or assumed to be equal to (a) Up-load conditions in which - (b) A side-load condition in which - 11:00 Mar 08, 2018

Section 27.561 Section 27.547 (a) Each main rotor assembly (including rotor hubs and blade... (b) [Reserved] (c) The main rotor structure must be 27.341: (d) The main rotor structure must be (e) The main rotor structure must be (i) The maximum torque likely to be 1425) 1968] Section 27.549 Fuselage, landing gear, and (a) Each fuselage, landing gear, and (b) Each structure must be designed 27.493, 27.497, 27.501, 27.505, and 27.521; (d)(2) and (e). (c) Auxiliary rotor thrust, and the (d) Each engine mount and adjacent 1425) 1968] Section 27.561 General. ...

Section 27.562 14 CFR Ch. I (1-1-18 Edition) (d) Any fuselage structure in the area (i) Upward - 1.5g. 1989; Amdt. 27-30, 59 FR 50386, Oct. 3, 1994; Section 27.562 Emergency landing dynamic (a) The rotorcraft, although it may (b) Each seat type design or other 170-pound 10Section lateral roll, with the directions optional, to acc... (c) Compliance with the following 11:00 Mar 08, 2018

Section 27.571 2.5 (d) An alternate approach that Section 27.563 Structural (a) Forward speed landing conditions. Section 27.571 Fatigue evaluation of flight (a) General. Each portion of the flight 11:00 Mar 08, 2018 (b) Auxiliary or emergency float conditions - (1) Floats fix... Section 27.801(d). Maximum roll and pitch angles determined ... Section 27.801(d) may be used, if significant, to

Section 27.573 14 CFR Ch. I (1-1-18 Edition) (i) Loads or stresses in all critical (a)(3) of this section. (b) Fatigue tolerance evaluation. It (c) Replacement time evaluation. it (d) Fail-safe evaluation. The following (e) Combination of replacement time 775, and 778, (49 U.S.C. 1354(a), 1421, 1423, 1424, 1977; Amdt. 27-18, 45 FR 60177, Sept. 11, 1980; Section 27.573 Damage Tolerance and Fatigue Evaluation of Co... (a) Each applicant must evaluate the (b) The methodology used to establish compliance with this s... (c) Definitions: 11:00 Mar 08, 2018

Section 27.573 (d) Damage Tolerance Evaluation: (i) The identification of all PSEs; (v) An assessment of the residual (i) Replacement times for PSEs must (d)(1)(iv) of this section; 11:00 Mar 08, 2018

Section 27.601 14 CFR Ch. I (1-1-18 Edition) (e) Fatigue Evaluation: If an applicant establishes that the... (d) of this section is impractical within 74663, Dec. 1, 2011] Section 27.603 Section 27.601 Design. (a) The rotorcraft may have no design features or details th... (b) The suitability of each questionable design detail and p... Section 27.602 Critical parts. (a) Critical part. A critical part is a (a) Be established on the basis of experience or tests; (b) Meet approved specifications that (c) Take into account the effects of 1976; Amdt. 27-16, 43 FR 50599, Oct. 30, 1978] Section 27.605 Subpart D - Design and (b) If the type design includes crtical (a) The methods of fabrication used (b) Each new aircraft fabrication 1421, 1423, 1424 and 1425); sec. 6(c) of the Dept. ...

Section 27.607 Section 27.613 (a) Each removable bolt, screw, nut, (b) No self-locking nut may be used 1999; Amdt. 27-46, 76 FR 33135, June 8, 2011] Section 27.611 Section 27.609 (a) Recurring inspection; (b) Adjustment for proper alignment (c) Lubrication. (a) Be suitably protected against deterioration or loss of s... (b) Have provisions for ventilation Section 27.610 Lightning and (a) The rotorcraft must be protected (b) For metallic components, compliance with paragraph (a) o... (c) For nonmetallic components, (d) The electrical bonding and protection against lightning ... Section 27.613 Material strength properties (a) Material strength properties must (b) Design values must be chosen to (e) of this section, compliance with ...

Section 27.619 14 CFR Ch. I (1-1-18 Edition) (d) Design values may be those contained in the following pu... (e) Other design values may be used if 1978; Amdt. 27-26, 55 FR 8000, Mar. 6, 1990] Section 27.619 (a) The special factors prescribed in (i) Uncertainties in manufacturing (b) For each part to which SectionSection 27.621 Section 27.621 Casting factors. (a) General. The factors, tests, and inspections specified i... (b) Bearing stresses and surfaces. The (c) and (d) of this section - (c) Critical castings. For each casting (i) Have a casting factor of not less (i) The strength requirements of Section 27.305 at an ultimate load corresponding to a castin... Section 27.305 at a load of 1.15 times the limit (d) Noncritical castings. For each casting other than those ... (d)(2) and (3) of this section, the casting 2.0 or greater ............... ...

1.25 through 1.50 ........ Section 27.659 100 percent visual, and magnetic 100 percent visual, and magnetic (i) A casting factor of 1.0 may be 1.50 - and tested under paragraph (c)(2) 1997] Section 27.623 Bearing factors. (a) Except as provided in paragraph (b) of this section, each part that has (b) No bearing factor need be used on Section 27.625 Fitting factors. (a) For each fitting whose strength is (b) No fitting factor need be used - (c) For each integral fitting, the part (d) Each seat, berth, litter, safety Section 27.561(b)(3) multiplied by a fitting factor of 1.33. 1998] Section 27.629 1990] Section 27.653 Pressure venting and drainage of rotor blades... ...

Section 27.661 14 CFR Ch. I (1-1-18 Edition) (b) The structural integrity of the Section 27.661 Rotor blade clearance. Section 27.663 Ground resonance prevention (a) The reliability of the means for (b) The probable range of variations, 1990] Section 27.671 General. (a) Each control and control system (b) Each element of each flight control system must be desig... Section 27.672 Stability augmentation, automatic, and power-... (a) A warning which is clearly distinguishable to the pilot ... (b) The design of the stability augmentation system or of an... (c) It must be shown that after any 47594, Dec. 6, 1984] Section 27.673 Section 27.674 11:00 Mar 08, 2018

Section 27.675 Section 27.685 Section 27.683 (a) Each control system must have (b) Each stop must be located in the (c) Each stop must be able to withstand the loads correspond... (d) For each main rotor blade - 1978] Section 27.679 (a) Give unmistakable warning to the (b) Prevent the lock from engaging in Section 27.681 (a) Compliance with the limit load (b) Compliance must be shown (by (a) Jamming; (b) Excessive friction; and (c) Excessive deflection. Section 27.685 (a) Each detail of each control system must be designed to p... (b) There must be means in the cockpit to prevent the entry ... (c) There must be means to prevent ...

Section 27.687 14 CFR Ch. I (1-1-18 Edition) 202-741-6030, (e) Control system joints subject to (f) For control system joints, the 1976; Amdt. 27-26, 55 FR 8001, Mar. 6, 1990; 69 Section 27.687 (a) Each control system spring device (b) Compliance with paragraph (a) of Section 27.691 Autorotation control mechanism. Section 27.695 Power boost and power-operated control system... (a) If a power boost or power-operated control system is use... (b) Each alternate system may be a (c) The failure of mechanical parts Section 27.723 Section 27.725 (a) The drop height must be - (b) If considered, the rotor lift specified in Section 27.47... (c) Each landing gear unit must be 11:00 Mar 08, 2018 ...

Section 27.729 (d) When an effective mass is used in 0.25g forward. (a) The drop height must be 1.5 times (b) Rotor lift, where considered in a 1990] Section 27.729 Retracting mechanism. (a) Loads. The landing gear, retracting mechansim, wheel-wel... (b) Landing gear lock. A positive (c) Emergency operation. When other (d) Operation tests. The proper functioning of the retractin... (e) Position indicator. There must be a (f) Control. The location and operation of the retraction co... 27.779. 11:00 Mar 08, 2018 Section 27.727 Reserve Section 27.725(b), may not exceed 1.5 times the (c) The landing gear must withstand

Section 27.731 14 CFR Ch. I (1-1-18 Edition) (g) Landing gear warning. An aural or Section 27.731 Wheels. (a) Each landing gear wheel must be (b) The maximum static load rating (c) The maximum limit load rating of Section 27.733 Tires. (a) Each landing gear wheel must (b) The maximum static load rating (c) Each tire installed on a retractable landing gear system... 1976] Section 27.735 Brakes. (a) Controllable by the pilot; (b) Usable during power-off landings; (c) Adequate to - 10-degree slope on a dry, smooth pavement. 1984] Section 27.737 Section 27.751 (a) For main floats, the buoyancy ...

Section 27.779 Section 27.755 Hulls. Section 27.771 Pilot compartment. (a) The compartment and its equipment must allow each pilot ... (b) If there is provision for a second (c) The vibration and noise characteristics of cockpit appur... Section 27.773 Pilot compartment view. (a) Each pilot compartment must be (b) If certification for night operation is requested, compl... (c) A vision system with a transparent display surface locat... 48, 81 FR 90170, Dec. 13, 2016] Section 27.775 Section 27.777 (a) Located to provide convenient operation and to prevent c... (b) Located and arranged with respect to the pilots- seats s... Section 27.779 Motion and effect of cockpit 11:00 Mar 08, 2018

Section 27.783 14 CFR Ch. I (1-1-18 Edition) (a) Flight controls, including the collective pitch control,... (b) Twist-grip engine power controls (c) Normal landing gear controls Section 27.783 (a) Each closed cabin must have at (b) Each external door must be located where persons using i... 1990] Section 27.785 Seats, berths, litters, safety (a) Each seat, safety belt, harness, Section 27.561(b) and dynamic conditions specified in Sectio... (b) Each occupant must be protected (c) Each occupant-s seat must have a (d) If seat backs do not have a firm (e) Each projecting object that could (f) Each seat and its supporting Section 27.561(b) must be multiplied by a factor of 1.33 in ... (i) Each seat to the structure; and (g) When the safety belt and shoulder 11:00 Mar 08, 2018 ...

Section 27.801 (h) When a headrest is used, the headrest and its supporting... (i) Each seating device system includes the device such as t... (j) Each seating device system may Section 27.562; otherwise, the system must remain intact and... (k) For the purposes of this section, a 1989; Amdt. 27-35, 63 FR 43285, Aug. 12, 1998] Section 27.787 Cargo and baggage compartments. (a) Each cargo and baggage compartment must be designed for ... Section 27.561. (b) There must be means to prevent (c) Under the emergency landing conditions of Section 27.561... (d) If cargo compartment lamps are 1976; Amdt. 27-27, 55 FR 38966, Sept. 21, 1990] Section 27.801 (a) If certification with ditching provisions is requested, ... 27.1415. (b) Each practicable design measure, 11:00 Mar 08, 2018

Section 27.805 14 CFR Ch. I (1-1-18 Edition) (c) The probable behavior of the (d) It must be shown that, under reasonably probable water c... (e) Unless the effects of the collapse Section 27.805 (a) For rotorcraft with passenger (b) Each flight crew emergency exit (c) Each flight crew emergency exit Section 27.807 Emergency exits. (a) Number and location. (1) There (i) Be above the waterline; and (b) Type and operation. Each emergency exit prescribed by pa... (c) Tests. The proper functioning of (d) Ditching emergency exits for passengers. If certificatio... Section 27.831 Ventilation. (a) The ventilating system for the 11:00 Mar 08, 2018

Section 27.859 (b) The concentration of carbon monoxide may not exceed one ... Section 27.833 Heaters. Section 27.853 Compartment interiors. (a) The materials must be at least (b) [Reserved] (c) If smoking is to be prohibited, (i) When illuminated, be legible to 1999] Section 27.855 Cargo and baggage compartments. (a) Each cargo and baggage compartment must be constructed o... (b) No compartment may contain any Section 27.859 Heating systems. (a) General. For each heating system (b) Heat exchangers. Each heat exchanger must be - (c) Combustion heater fire protection. 27.1189, 27.1191, and be provided with - (i) Effective under conditions expected to prevail when drai... (d) Ventilating air ducts. Each ventilating air duct passing... 11:00 Mar 08, 2018 ...

Section 27.861 14 CFR Ch. I (1-1-18 Edition) (e) Combustion air ducts. Each combustion air duct must be f... (f) Heater control: General. There must (g) Heater safety controls. For each (i) The heat exchanger temperature (i) Be independent of components (h) Air intakes. Each combustion and (i) Heater exhaust. Each heater exhaust system must meet the... (j) Heater fuel systems. Each heater (k) Drains. There must be means for 1988] Section 27.861 Fire protection of structure, 11:00 Mar 08, 2018

Section 27.865 Section 27.863 Flammable fluid fire protection. (a) In each area where flammable (b) Compliance with paragraph (a) of (c) If action by the flight crew is required to prevent or c... (d) Each area where flammable fluids Section 27.865 External loads. (a) It must be shown by analysis, 30Section. However, the 30Section angle may be reduced to a ... (b) The external load attaching 11:00 Mar 08, 2018

Section 27.871 14 CFR Ch. I (1-1-18 Edition) (i) Be reliable, durable, and function (c) For rotorcraft-load combinations (i) Provides a dual actuation device (d) The critically configured jettisonable external loads mu... (e) A placard or marking must be installed next to the exter... (f) The fatigue evaluation of Section 27.571 Section 27.571 of this part applies to the entire 1990; Amdt. 27-36, 64 FR 43019, Aug. 6, 1999] Section 27.871 Leveling marks. Section 27.873 Ballast provisions. Subpart E - Powerplant Section 27.901 Installation. (a) For the purpose of this part, the 11:00 Mar 08, 2018

Section 27.907 (b) For each powerplant installation - (c) The installation must comply 1968; Amdt. 27-12, 42 FR 15044, Mar. 17, 1977; Section 27.903 Engines. (a) Engine type certification. Each engine must have an appr... (b) Engine or drive system cooling fan (i) The fan blades are contained in Section 27.571 is conducted, it must be shown (c) Turbine engine installation. For (d) Restart capability: A means to restart any engine in fli... 1976; Amdt. 27-23, 53 FR 34211, Sept. 2, 1988; Section 27.907 (a) Each engine must be installed to (b) The addition of the rotor and the 11:00 Mar 08, 2018

Section 27.917 14 CFR Ch. I (1-1-18 Edition) (c) No part of the rotor drive system Section 27.917 Design. (a) Each rotor drive system must incorporate a unit for each... (b) Each rotor drive system must be (c) If a torque limiting device is used (d) The rotor drive system includes 1976] Section 27.921 Rotor brake. Section 27.923 Rotor drive system and control mechanism test... (a) Each part tested as prescribed in (b) Each rotor drive system and control mechanism must be te... (c) A 60-hour part of the test prescribed in paragraph (b) o... (d) A 30-hour or, for rotorcraft for (e) A 10-hour part of the test prescribed in paragraph (b) o... (i) Each run must consist of at least 21-2 minute OEI torque for 21-2 minutes. 11:00 Mar 08, 2018

Section 27.927 (i) Immediately following a takeoff (f) The parts of the test prescribed in (g) At intervals of not more than five (h) Under the operating conditions 500 complete cycles of control of each (i) At least 200 start-up clutch engagements must be accompl... (j) For multiengine rotorcraft for 30-minute OEI torque and the maximum speed for use with 30-m... (k) For multiengine rotorcraft for 1968; Amdt. 27-12, 42 FR 15044, Mar. 17, 1977; 27-29, 59 FR 47767, Sept. 16, 1994] Section 27.927 Additional tests. (a) Any additional dynamic, endurance, and operational tests... (b) If turbine engine torque output to 11:00 Mar 08, 2018

Section 27.931 14 CFR Ch. I (1-1-18 Edition) (i) The maximum torque used in (c) It must be shown by tests that the 15 minutes after the loss of pressure in (c) If analytical methods are used and 1977; Amdt. 27-23, 53 FR 34212, Sept. 2, 1988] Section 27.931 (a) The critical speeds of any shafting (b) If any critical speed lies within, Section 27.935 Shafting joints. Section 27.939 Turbine (a) Turbine engine operating characteristics must be investi... (b) The turbine engine air inlet system may not, as a result... (c) For governor-controlled engines, 1976] Section 27.951 General. (a) Each fuel system must be constructed and arranged to ens... (b) Each fuel system must be arranged so that - (c) Each fuel system for a turbine engine must be capable of... 11:00 Mar 08, 2018 ...

Section 27.952 1974] Section 27.952 Fuel system crash resistance. (a) Drop test requirements. Each tank, 50 feet. (b) Fuel tank load factors. Except for (i) Upward - 4g. (i) Upward - 1.5g. (i) Upward - 1.5g. (c) Fuel line self-sealing breakaway (i) The load necessary to separate a 25 to 50 percent of the minimum ultimate failure load (ultim... (v) No breakaway coupling design 11:00 Mar 08, 2018

Section 27.953 14 CFR Ch. I (1-1-18 Edition) Section 27.955(a) and must comply with the fatigue Section 27.571 without leaking. (d) Frangible or deformable structural (d)(1) of this section) is applied in the (e) Separation of fuel and ignition (f) Other basic mechanical design criteria. Fuel tanks, fuel... (g) Rigid or semirigid fuel tanks. Rigid Section 27.953 Fuel system independence. (a) Each fuel system for multiengine (b) If a single fuel tank is used on a Section 27.954 Fuel system lightning protection. (a) Direct lightning strikes to areas 11:00 Mar 08, 2018

Section 27.963 (b) Swept lightning strokes to areas (c) Corona and streamering at fuel Section 27.955 Fuel flow. (a) General. The fuel system for each Section 27.1305(q). (b) Fuel transfer systems. If normal operation of the fuel s... (c) Multiple fuel tanks. If an engine Section 27.959 Section 27.961 Fuel system hot weather operation. Section 27.963 (a) Each fuel tank must be able to (b) Each fuel tank of 10 gallons or (c) Each fuel tank must be separated 11:00 Mar 08, 2018

Section 27.965 14 CFR Ch. I (1-1-18 Edition) (d) Spaces adjacent to the surfaces of (e) The maximum exposed surface (f) Each fuel tank installed in personnel compartments must ... Section 27.952, and must be adequate to withstand loads and ... (g) Each flexible fuel tank bladder or (h) Each integral fuel tank must have 1988; Amdt. 27-30, 59 FR 50387, Oct. 3, 1994] Section 27.965 Fuel tank tests. (a) Each fuel tank must be able to (b) Each conventional metal tank, (c) Each nonmetallic tank with walls p.s.i. on surfaces not exposed to the acceleration loading. (d) Each tank with large unsupported (i) If no frequency of vibration resulting from any r.p.m. w... 11:00 Mar 08, 2018

Section 27.971 (d)(3)(i) of this section. 20 complete cycles per minute through Section 27.967 (a) Each fuel tank must be supported (i) There are means for protection of (b) Any spaces adjacent to tank surfaces must be adequately ... (c) The location of each tank must (d) No rotorcraft skin immediately Section 27.969 Fuel tank expansion space. Section 27.971 Fuel tank sump. (a) Each fuel tank must have a drainable sump with an effect... (b) Each sump, sediment bowl, and 11:00 Mar 08, 2018

Section 27.973 Section 27.973 14 CFR Ch. I (1-1-18 Edition) (a) Each fuel tank filler connection (b) Each filler cap or filler cap cover Section 27.975 (a) Each fuel tank must be vented (b) The venting system must be designed to minimize spillage... 1988; Amdt. 27-30, 59 FR 50387, Oct. 3, 1994; Section 27.977 (a) There must be a fuel stainer for (b) The clear area of each fuel tank (c) The diameter of each strainer (d) Each finger strainer must be accessible for inspection a... Section 27.991 Fuel pumps. (a) Any one pump except pumps that (b) Any component required for pump Section 27.993 Fuel system lines and fittings. (a) Each fuel line must be installed (b) Each fuel line connected to components of the rotorcraft... (c) Flexible hose must be approved. ...

Section 27.997 Section 27.1013 (a) Be accessible for draining and (b) Have a sediment trap and drain (c) Be mounted so that its weight is (d) Provide a means to remove from 1976; Amdt. 27-23, 53 FR 34213, Sept. 2, 1988] Section 27.1011 (a) Each engine must have an independent oil system that can... (b) The usable oil capacity of each (c) The oil cooling provisions for each 1984; Amdt. 27-23, 53 FR 34213, Sept. 2, 1988] 1988] Section 27.999 Section 27.1013 (a) There must be at least one accessible drain at the lowes... (b) Each drain required by paragraph (a) of this section must - (i) That is readily accessible and (a) It can withstand, without failure, (b) [Reserved] ...

Section 27.1015 14 CFR Ch. I (1-1-18 Edition) (f) There are means in the filler opening to prevent oil ove... 1974] Section 27.1015 Oil tank tests. Section 27.1017 Oil lines and fittings. (a) Each oil line must be supported to (b) Each oil line connected to components of the rotorcraft ... (c) Flexible hose must be approved. (d) Each oil line must have an inside Section 27.1019 Oil strainer or filter. (a) Each turbine engine installation (b) Each oil strainer or filter in a 1984; Amdt. 27-23, 53 FR 34213, Sept. 2, 1988] Section 27.1021 (a) Be accessible; and (b) Have manual or automatic means Section 27.1027 Transmissions (a) The lubrication system for components of the rotor drive... (b) Pressure lubrication systems for 27.1337(d). ...

Section 27.1043 (c)(3) of this section; and (i) The lubricant will flow at the normal rate through the r... (d) For each lubricant tank or sump (e) Splash-type lubrication systems 1999] Section 27.1041 (a) Each powerplant cooling system (b) Compliance with paragraph (a) of 1988] Section 27.1043 Cooling tests. (a) General. For the tests prescribed (b) Maximum ambient atmospheric temperature. A maximum ambie... (c) Correction factor (except cylinder 11:00 Mar 08, 2018

Section 27.1045 14 CFR Ch. I (1-1-18 Edition) (d) Correction factor for cylinder barrel 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1976; Amdt. 27-14, 43 FR 2325, Jan. 16, 1978] Section 27.1045 (a) General. For each stage of flight, (b) Temperature stabilization. For the (i) The temperatures must be stabilized under the conditions... (c) Duration of test. For each stage of 1988] Section 27.1091 (a) The air induction system for each (b) Each cold air induction system (c) If fuel can accumulate in any air (d) For turbine engine powered rotorcraft - 1968; Amdt. 27-23, 53 FR 34214, Sept. 2, 1988] Section 27.1093 Induction system icing protection. (a) Reciprocating engines. Each reciprocating engine air ind... 11:00 Mar 08, 2018 ...

Section 27.1121 (i) 100 degrees F.; or (b) Turbine engine. (1) It must be (i) Without accumulating ice on engine or inlet system compo... 30 minutes on the ground, with the air (c) Supercharged reciprocating engines. 1976; Amdt. 27-12, 42 FR 15045, Mar. 17, 1977; 27-23, 53 FR 34214, Sept. 2, 1988] Section 27.1121 (a) There must be means for thermal (b) There must be means to prevent (c) Exhaust gases must discharge (d) Each exhaust system part with a (e) Exhaust gases may not impair (f) If significant traps exist, each turbine engine exhaust ... (g) Each exhaust heat exchanger 1977] 11:00 Mar 08, 2018

Section 27.1123 Section 27.1123 14 CFR Ch. I (1-1-18 Edition) Section 27.1143 (a) Exhaust piping must be heat and (b) Exhaust piping must be supported (c) Exhaust piping connected to components between which rel... Section 27.1141 (a) Powerplant controls must be located and arranged under S... (b) Each flexible powerplant control (c) Each control must be able to (d) Controls of powerplant valves required for safety must h... (i) Is in the fully open or fully closed (e) For turbine engine powered rotorcraft, no single failure... (a) There must be a separate power (b) Power controls must be grouped (c) Each power control must provide (d) If a power control incorporates a (e) For rotorcraft to be certificated 1976; Amdt. 27-23, 53 FR 34214, Sept. 2, 1988; Section 27.1145 ...

Section 27.1187 (a) Separate control of each engine; (b) Simultaneous control of all engines. Section 27.1151 Rotor brake controls. (a) It must be impossible to apply the (b) There must be means to warn the Section 27.1163 Powerplant accessories. (a) Each engine-mounted accessory (b) Unless other means are provided, 1984; Amdt. 27-23, 53 FR 34214, Sept. 2, 1988] Section 27.1183 Lines, fittings, and components. (a) Except as provided in paragraph (b) of this section, each line, fitting, (b) Paragraph (a) does not apply to - (c) Each flammable fluid drain and 1967; Amdt. 27-9, 39 FR 35462, Oct. 1, 1974; Section 27.1185 (a) Each fuel tank must be isolated (b) Each tank or reservoir, other (c) There must be at least one-half (d) Absorbent materials close to ...

Section 27.1189 14 CFR Ch. I (1-1-18 Edition) (b) Arranged so that no discharged Section 27.1189 Shutoff means. (a) There must be means to shut off 500 cu. in. displacement. (b) There must be means to guard (c) Each shutoff valve and its control 1968; Amdt. 27-20, 49 FR 6850, Feb. 23, 1984; Section 27.1191 Firewalls. (a) Each engine, including the combustor, turbine, and tailp... (b) Each auxiliary power unit and (c) In meeting paragraphs (a) and (b) (d) Each firewall and shroud must be (e) Each opening in the firewall or (f) Each firewall and shroud must be 1968] Section 27.1193 Cowling and engine compartment covering. (a) Each cowling and engine compartment covering must be con... (b) There must be means for rapid (c) No drain may discharge where it ...

Section 27.1195 Section 27.1305 Subpart F - Equipment Section 27.1301 (a) Be of a kind and design appropriate to its intended func... (b) Be labeled as to its identification, (c) Be installed according to limitations specified for that... (d) Function properly when installed. Section 27.1303 Flight and navigation instruments. (a) An airspeed indicator. (b) An altimeter. (c) A magnetic direction indicator. Section 27.1305 (a) A carburetor air temperature indicator, for each engine ... (b) A cylinder head temperature indicator, for each - (c) A fuel pressure indicator, for each (d) A fuel quantity indicator, for each (e) A manifold pressure indicator, for (f) An oil temperature warning device (g) An oil pressure warning device to (h) An oil pressure indicator for each ...

Section 27.1307 14 CFR Ch. I (1-1-18 Edition) (r) For each turbine engine, a warning means for the oil str... (s) An indicator to indicate the functioning of any selectab... (t) For rotorcraft for which a 30-second/2-minute OEI power ... (u) For each turbine engine utilizing 30-second/2-minute OEI power, a device (v) Warning or caution devices to signal to the flight crew ... 1974; Amdt. 27-23, 53 FR 34214, Sept. 2, 1988; 27-37, 64 FR 45095, Aug. 18, 1999; 64 FR 47563, Section 27.1307 Miscellaneous equipment. (a) An approved seat for each occupant. (b) An approved safety belt for each (c) A master switch arrangement. (d) An adequate source of electrical (e) Electrical protective devices. Section 27.1309 Equipment, systems, and installations. (a) The equipment, systems, and installations whose function... (b) The equipment, systems, and installations of a multiengi... (c) The equipment, systems, and installations of single-engi... 1984; Amdt. 27-46, 76 FR 33135, June 8, 2011] ...

Section 27.1322 (b) Each electrical and electronic (c) Each electrical and electronic system that performs a fu... (d) Before December 1, 2012, an electrical or electronic sys... 2007] Section 27.1321 Arrangement and visibility. (a) Each flight, navigation, and powerplant instrument for u... (b) For each multiengine rotorcraft, (c) Instrument panel vibration may (d) If a visual indicator is provided to 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 27-13, 42 FR 36971, July 18, 1977] Section 27.1322 Warning, caution, and advisory lights. (a) Red, for warning lights (lights indicating a hazard whic... (b) Amber, for caution lights (lights (c) Green, for safe operation lights; (d) Any other color, including white, (a) through (c) of this section, provided 11:00 Mar 08, 2018 ...

Section 27.1323 14 CFR Ch. I (1-1-18 Edition) Section 27.1323 Airspeed indicating system. (a) Each airspeed indicating instrument must be calibrated t... (b) The airspeed indicating system (c) At each forward speed above 80 (d) For unpressurized rotorcraft, 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1977] 1977] (a) Except as provided in paragraph (b) of this section - (b) A magnetic nonstabilized direction indicator may deviate... 10 degrees due to the operation of electrically powered syst... Section 27.1547(e). Section 27.1325 Static pressure systems. (a) Each instrument with static air (b) Each static pressure port must be (c) Except as provided in paragraph (d) of this section, if the static pressure ...

Section 27.1329 Section 27.1337 (a) Each automatic pilot system (b) Unless there is automatic synchronization, each system m... (c) Each manually operated control (d) The system must be designed and (e) If the automatic pilot integrates (f) If the automatic pilot system can 1998] Section 27.1335 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) Section 27.1337 (a) Instruments and instrument lines. (i) Have restricting orifices or other (b) Fuel quantity indicator. Each fuel Section 27.959; (c) Fuel flowmeter system. If a fuel (d) Oil quantity indicator. There must 11:00 Mar 08, 2018 ...

Section 27.1351 14 CFR Ch. I (1-1-18 Edition) (e) Rotor drive system transmissions 1977; Amdt. 27-23, 53 FR 34214, Sept. 2, 1988; Section 27.1351 General. (a) Electrical system capacity. Electrical equipment must be... (b) Function. For each electrical system, the following appl... (i) Free from hazards in itself, in its (c) Generating system. There must be (d) Instruments. There must be means (e) External power. If provisions are 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1976; Amdt. 27-13, 42 FR 36972, July 18, 1977] 11:00 Mar 08, 2018

Section 27.1361 Section 27.1353 Storage battery design and (a) Each storage battery must be designed and installed as p... (b) Safe cell temperatures and pressures must be maintained ... (c) Compliance with paragraph (b) of (d) No explosive or toxic gases emitted by any battery in no... (e) No corrosive fluids or gases that (f) Each nickel cadmium battery installation capable of bein... (g) Nickel cadmium battery installations capable of being us... 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1977; Amdt. 27-14, 43 FR 2325, Jan. 16, 1978] Section 27.1357 (a) Protective devices, such as fuses (b) A protective device for a circuit (c) Each resettable circuit protective (d) If the ability to reset a circuit (e) If fuses are used, there must be 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 27-13, 42 FR 36972, July 18, 1977] ...

Section 27.1365 14 CFR Ch. I (1-1-18 Edition) (b) Load circuits may be connected so (c) The master switch or its controls Section 27.1365 (a) Each electric connecting cable (b) Each cable that would overheat in (c) Insulation on electrical wire and 1998] Section 27.1367 (a) Able to carry its rated current; (b) Accessible to the crew; and (c) Labeled as to operation and the Section 27.1381 (a) Make each instrument, switch, (b) Be installed so that - Section 27.1383 (a) Each required landing or hovering (b) Each landing light must be installed so that - (c) At least one separate switch must Section 27.1385 Position light system installation. ...

Section 27.1393 (d) Dihedral angle A (aft) is formed (e) If the rear position light, when 1971] Section 27.1389 Position light distribution (a) General. the intensities prescribed (b) Forward and rear position lights. Section 27.1391 for the corresponding angles in Section 27.1391 Minimum intensities in the 10Section to 10Section ................... 10Section to 20Section ................... 20Section to 110Section ................. 110Section to 180Section ............... 11:00 Mar 08, 2018 Section 27.1393 Minimum intensities in any 0Section ...................................................... 0Section to 5Section .......................................... ...

Section 27.1395 14 CFR Ch. I (1-1-18 Edition) 30Section to 40Section ........................................ 40Section to 90Section ........................................ 0.10 0.05 Section 27.1395 Maximum intensities in overlapping beams of ... Section 27.1389(b)(3). (a) Area A includes all directions in ...

Section 27.1419 (d) Color. Each anticollision light (e) Light intensity. The minimum 1976] Section 27.1413 1978; Amdt. 27-21, 49 FR 44435, Nov. 6, 1984] 0.2 + (t 2 - t1 ) Section 27.1415 (a) Emergency flotation and signaling equipment required by ... (b) Each raft and each life preserver (c) Each raft released automatically (d) Each signaling device must be (f) Minimum effective intensities for 0Section to 5Section .......................................... 5Section to 10Section ......................................... 10Section to 20Section ........................................ 20Section to 30Section ........................................ 1971; Amdt. 27-10, 41 FR 5290, Feb. 5, 1976] ...

Section 27.1435 14 CFR Ch. I (1-1-18 Edition) (c) In addition to the analysis and (d) The ice protection provisions of (e) A means must be indentified or Section 27.1435 Hydraulic systems. (a) Design. Each hydraulic system (b) Tests. Each system must be substantiated by proof pressu... (c) Accumulators. No hydraulic accumulator or pressurized re... Section 27.1457 (a) Each cockpit voice recorder required by the operating ru... (b) The recording requirements of 11:00 Mar 08, 2018

Section 27.1459 (c) Each cockpit voice recorder must (i) Each microphone, headset, or (d) Each cockpit voice recorder must (i) That provides 10 Section1 minutes of (e) The record container must be located and mounted to mini... (f) If the cockpit voice recorder has a (g) Each recorder container must be (h) When both a cockpit voice recorder and a flight data rec... 2008; 74 FR 32800, July 9, 2009; Amdt. 27-45, 75 Section 27.1459 (a) Each flight recorder required by 27.1327 of this part, as applicable; 11:00 Mar 08, 2018

Section 27.1461 14 CFR Ch. I (1-1-18 Edition) (b) Each nonejectable recorder container must be located and... (c) A correlation must be established (d) Each recorder container must: (e) When both a cockpit voice recorder and a flight data rec... 2008; 74 FR 32800, July 9, 2009; Amdt. 27-45, 75 Section 27.1461 Equipment containing high (a) Equipment containing high energy rotors must meet paragr... (c), or (d) of this section. (b) High energy rotors contained in (c) It must be shown by test that (d) Equipment containing high energy rotors must be located ... Subpart G - Operating Limitations Section 27.1501 (a) Each operating limitation specified in SectionSection 27... 11:00 Mar 08, 2018

Section 27.1519 (b) The operating limitations and 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) Section 27.1503 (a) An operating speed range must be (b) When airspeed limitations are a Section 27.1505 (i) Section 27.65(b) for single engine helicopters; and (i) A constant airspeed; 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 27-21, 49 FR 44435, Nov. 6, 1984] Section 27.1509 (a) The never-exceed speed, VNE, must (i) 0.9 times the maximum forward (b) VNE may vary with altitude, r.p.m., temperature, and weight, if - (c) For helicopters, a stabilized (a) Maximum power-off (autorotation). (b) Minimum power off. The minimum ...

Section 27.1521 14 CFR Ch. I (1-1-18 Edition) 27.27, respectively, must be established 1984] Section 27.1521 (a) General. The powerplant limitations prescribed in this s... (b) Takeoff operation. The powerplant (i) The maximum value determined (b)(3) of this section exceeds two minutes, the maximum allo... (c) Continuous operation. The continuous operation must be l... (i) The maximum value determined (d) Fuel grade or designation. The minimum fuel grade (for r... (e) Turboshaft engine torque. For (i) The torque that the rotor drive (f) Ambient temperature. For turbine (g) Two and one-half-minute OEI power 21-2-minute OEI power must also be limited by - (i) The maximum value determined (h) Thirty-minute OEI power operation. 30-minute OEI power must be limited (i) The maximum value determined ...

Section 27.1527 (i) Continuous OEI power operation. (i) The maximum value determined (j) Rated 30-second OEI power operation. Rated 30-second OEI... Section A33.4 of appendix A of part 33. (i) The maximum value determined (k) Rated 2-minute OEI power operation. Rated 2-minute OEI p... Section A33.4 of appendix A of part 33. (i) The maximum value determined 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1978; Amdt. 27-23, 53 FR 34214, Sept. 2, 1988; Section 27.1523 (a) The workload on individual crewmembers; (b) The accessibility and ease of operation of necessary con... (c) The kinds of operation authorized Section 27.1525 Section 27.1527 11:00 Mar 08, 2018

Section 27.1529 14 CFR Ch. I (1-1-18 Edition) 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) Section 27.1529 Instructions Section 27.1541 (a) When markings are on the cover (b) Each arc and line must be wide Section 27.1545 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1978; 43 FR 3900, Jan. 30, 1978; Amdt. 27-16, 43 Section 27.1547 (a) The rotorcraft must contain - (b) Each marking and placard prescribed in paragraph (a) of ... Section 27.1543 (b) The following markings must be (i) For rotocraft other than helicopters, at VNE; and (a) Each airspeed indicator must be (a) A placard meeting the requirements of this section must ... (b) The placard must show the calibration of the instrument ... ...

Section 27.1557 Section 27.1549 Powerplant instruments. (a) Each maximum and, if applicable, (b) Each normal operating range (c) Each takeoff and precautionary (d) Each engine or propeller range (e) Each OEI limit or approved operating range must be marke... 1988; Amdt. 27-29, 59 FR 47768, Sept. 16, 1994] Section 27.1551 Oil quantity indicator. Section 27.1553 Fuel quantity indicator. Section 27.1555 Control markings. (a) Each cockpit control, other than (b) For powerplant fuel controls - (c) Usable fuel capacity must be (d) For accessory, auxiliary, and (e) For rotorcraft incorporating retractable landing gear, t... 1976; Amdt. 27-21, 49 FR 44435, Nov. 6, 1984] Section 27.1557 Miscellaneous markings and (a) Baggage and cargo compartments, (b) Seats. If the maximum allowable (c) Fuel and oil filler openings. The following apply: ...

Section 27.1559 14 CFR Ch. I (1-1-18 Edition) (d) Emergency exit placards. Each 1976] Section 27.1559 Limitations placard. Section 27.1561 Safety equipment. (a) Each safety equipment control to (b) Each location, such as a locker or Section 27.1565 Tail rotor. Section 27.1581 General. (a) Furnishing information. A Rotorcraft Flight Manual must ... (b) Approved information. Each part of 27.1589, that is appropriate to the rotorcraft, must be furn... (c) [Reserved] (d) Table of contents. Each Rotorcraft 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) Section 27.1583 (a) Airspeed and rotor limitations. Information necessary fo... (b) Powerplant limitations. The following information must b... (c) Weight and loading distribution. ...

Section 27.1587 (g) Altitude. The altitude established 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1968; Amdt. 27-14, 43 FR 2325, Jan. 16, 1978; Section 27.1585 (a) Parts of the manual containing (b) For multiengine rotorcraft, information identifying each... (c) For helicopters for which a VNE Section 27.1505(c), information must be furnished to explain... (d) For each rotorcraft showing compliance with Section 27.1... (e) If the unusable fuel supply in any (f) Information on the total quantity (g) The airspeeds and rotor speeds for 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1978; Amdt. 27-16, 43 FR 50599, Oct. 30, 1978; Section 27.1587 (a) The Rotorcraft Flight Manual (d): (i) The steady rates of climb and descent, in-ground effect ... ...

Section 27.1589 14 CFR Ch. I (1-1-18 Edition) Section 27.71. (b) The Rotorcraft Flight Manual Section 27.65(a)(2)(i). 1421, 1423, 1424, and 1425); and sec. 6(c) of the 1655(c))) 1978; Amdt. 27-21, 49 FR 44435, Nov. 6, 1984; 33876, June 16, 2008] Section 27.1589 Loading information. (a) This appendix specifies requirements (b) The Instructions for Continued Airworthiness for each ro... (c) The applicant must submit to the FAA (a) The Instructions for Continued Airworthiness must be in ... (b) The format of the manual or manuals (a) Rotorcraft maintenance manual or section. (b) Maintenance instructions. (1) Scheduling 11:00 Mar 08, 2018

(c) Diagrams of structural access plates (d) Details for the application of special inspection techni... (e) Information needed to apply protective (f) All data relative to structural fasteners (g) A list of special tools needed. 1989; Amdt. 27-47, 76 FR 74663, Dec. 1, 2011] (b) VNEI means instrument flight never exceed speed, utilize... (c) VMINI means instrument flight minimum speed, utilized in... (b) For single-pilot approval: (i) The helicopter trimmed at VYI; (i) The helicopter trimmed and power adjusted for level flig... 1.3 VMINI or 20 knots above trim speed, whichever is greater... (i) the helicopter trimmed and power adjusted for level flig... (i) The helicopter trimmed at 0.8 VH or 0.8 (i) The helicopter trimmed at the recommended approach speed... 11:00 Mar 08, 2018

14 CFR Ch. I (1-1-18 Edition) (c) Helicopters approved for a minimum (b) During sideslips up to Section10Section from trim (b) For helicopters approved with a minimum crew of two pilo... (a) If a SAS is used, the reliability of the (i) The controllability and maneuverability requirements in ... (b) The SAS must be designed so that it (a) Flight and Navigation Instruments. (1) A (b) Miscellaneous requirements. (1) Instrument systems and o... 11:00 Mar 08, 2018

(i) Only the required flight instruments for (a) Limitations. The approved IFR flight envelope, the IFR f... (b) Procedures. Required information for (c) Performance. If VYI differs from VY, 2008; Amdt. 27-46, 76 FR 33135, June 8, 2011] 29.45(a) and (b)(2) - General. 29.49(a) - Performance at minimum operating 29.51 - Takeoff data: General. 29.53 - Takeoff: Category A. 29.55 - Takeoff decision point: Category A. 29.59 - Takeoff Path: Category A. 29.60 - Elevated heliport takeoff path: Category A. 29.61 - Takeoff distance: Category A. 29.62 - Rejected takeoff: Category A. 29.64 - Climb: General. 29.65(a) - Climb: AEO. 29.67(a) - Climb: OEI. 29.75 - Landing: General. 29.77 - Landing decision point: Category A. 29.79 - Landing: Category A. 29.81 - Landing distance (Ground level sites): ...

14 CFR Ch. I (1-1-18 Edition) 29.1587(a) - Performance information. Section 27.1317. The field strength values for the (a) HIRF environment I is specified in the 10 kHz-2 MHz ................................... 2 MHz-30 MHz ................................. 30 MHz-100 MHz ............................. 100 MHz-400 MHz ........................... 400 MHz-700 MHz ........................... 700 MHz-1 GHz ................................ 1 GHz-2 GHz .................................... 2 GHz-6 GHz .................................... 6 GHz-8 GHz .................................... 8 GHz-12 GHz .................................. 12 GHz-18 GHz ................................ 18 GHz-40 GHz ................................ 2,000 ...

2007] PART 29 - AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY 29.231 29.235 29.239 29.241 29.251 Subpart A - General Subpart C - Strength Requirements 29.1 Applicability. 29.2 Special retroactive requirements. 29.301 29.303 29.305 29.307 29.309 Subpart B - Flight 29.21 Proof of compliance. 29.25 Weight limits. 29.27 Center of gravity limits. 29.29 Empty weight and corresponding center of gravity. ...