background image

354 

14 CFR Ch. I (1–1–18 Edition) 

Pt. 60, App. C 

T

ABLE

C2A—F

ULL

F

LIGHT

S

IMULATOR

(FFS) O

BJECTIVE

T

ESTS

—Continued 

QPS requirements 

Information 

Test 

Tolerance(s) 

Flight condition 

Test details 

Simulator 

level 

Notes 

Entry No. 

Title 

B C D 

3.f.1. ...........

Vibrations—to include 1/Rev 

and n/Rev vibrations 
(where ‘‘n’’ is the number 
of main rotor blades). 

+ 3db to ¥6db or ±10% of 

nominal vibration level in 
flight cruise and correct 
trend (see comment). 

(a) On ground (idle); 
(b) In flight 

Characteristic vibrations in-

clude those that result from 
operation of the helicopter 
(for example, high air-
speed, retreating blade 
stall, extended landing 
gear, vortex ring or settling 
with power) in so far as vi-
bration marks an event or 
helicopter state, which can 
be sensed in the flight 
deck. 

[See Table C1A, table entries 

5.e. and 5.f.] 

X  Correct trend refers to a com-

parison of vibration ampli-
tudes between different 
maneuvers; e.g., if the 1/ 
rev vibration amplitude in 
the helicopter is higher dur-
ing steady state turns than 
in level flight this increasing 
trend should be dem-
onstrated in the simulator. 
Additional examples of vi-
brations may include: 

(a) Low & High speed transi-

tion to and from hover; 

(b) Level flight; 
(c) Climb and descent (in-

cluding vertical climb; 

(d) Auto-rotation; 
(e) Steady Turns. 

3.f.2. ...........

Buffet—Test against recorded 

results for characteristic 
buffet motion that can be 
sensed in the flight deck. 

+ 3db to ¥6db or ±10% of 

nominal vibration level in 
flight cruise and correct 
trend (see comment). 

On ground and in flight. 

Characteristic buffets include 

those that result from oper-
ation of the helicopter (for 
example, high airspeed, re-
treating blade stall, ex-
tended landing gear, vortex 
ring or settling with power) 
in so far as a buffet marks 
an event or helicopter 
state, which can be sensed 
in the flight deck. 

[See Table C1A, table entries 

5.e. and 5.f.] 

X  The recorded test results for 

characteristic buffets 
should allow the checking 
of relative amplitude for dif-
ferent frequencies. 

For atmospheric disturbance, 

general purpose models 
are acceptable which ap-
proximate demonstrable 
flight test data. 

4. Visual System 

4.a. .............

Visual System Response Time: (Choose either test 4.a.1. or 4.a.2. to satisfy test 4.a., Visual System Response Time Test. This test is also sufficient for motion system re-
sponse timing and flight deck instrument response timing.) 

4.a.1. ..........

Latency 

VerDate Sep<11>2014 

15:43 Jan 19, 2018

Jkt 244047

PO 00000

Frm 00364

Fmt 8010

Sfmt 8002

Q:\14\14V2.TXT

31

kpayne on DSK54DXVN1OFR with $$_JOB