Aeronautical Information Manual (AIM), page 382

Index   381 -- Page 382 -- 383

AIM                                                                                                    12/10/15

FIG 5-4-23 SOIA Approach Geometry NOTE- SAP The stabilized approach point is a design point along the extended centerline of the intended land- ing runway on the glide slope/glide path at 500 feet above the runway threshold elevation. It is used to verify a sufficient distance is provided for the visual maneuver after the offset course ap- proach DA to permit the pilots to conform to approved, stabilized approach criteria. The SAP is not published on the IAP. Offset The point along the LDA, or other offset course, where the course separation with the adjacent Course DA ILS, or other straight-in course, reaches the minimum distance permitted to conduct closely spaced approaches. Typically that minimum distance will be 3,000 feet without the use of high update radar; with high update radar, course separation of less than 3,000 ft may be used when validated by a safety study. The altitude of the glide slope/glide path at that point determines the offset course approach decision altitude and is where the NTZ terminates. Maneuvering inside the DA is done in visual conditions. Visual Angle, as determined by the SOIA design tool, formed by the extension of the straight segment Segment of the calculated flight track (between the offset course MAP/DA and the SAP) and the extended Angle runway centerline. The size of the angle is dependent on the aircraft approach categories (Cat- egory D or only selected categories/speeds) that are authorized to use the offset course approach and the spacing between the runways. Visibility Distance from the offset course approach DA to runway threshold in statute mile. 5-4-46 Arrival Procedures

Page 382 of the Aeronautical Information Manual (AIM.pdf)
AIM: Official Guide to Basic Flight Information and ATC Procedures

Index   381 -- Page 382 -- 383