Viewing page 11 of 11

This transcription has been completed. Contact us with corrections.

approach flight track within a permissible deviation of plus or minus 100' from the centerline.

10 - Helicopter approach to landing under complete instrument conditions may be anticipated in the order of a 7 degree angle at a forward speed of 40 knots or lower and at approximately 500 feet per minute.

11 - Current developments of radar for collision warning appears applicable to helicopter operations. A range of 10 miles appears adequate for helicopter operations.

12 - Functioning in the precise operation of the helicopter in approaching for landing as well as the necessity for reduced vertical separation accentuates the need for the development of accurate air speed indicators and altimeters.

13 - The ANC standards of separation should be revised to recognize the unusual flight characteristics of the helicopter and to permit the development of suitable Nav-Aids and air traffic control procedures. The present fixed-wing standards unduly restrict the helicopter by not taking into account its unique capabilities.

Fundamental of course to any system is obviously weight, compactness, ease of maintenance, reliability, clarity of information presented in the cockpit and the economics of installation and operation. While the true helicopter navigation system will undoubtedly require the development of new devices every consideration should be given to the use of proven available equipment.

8