NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Gary LaPook
Date: 2019 Jan 20, 05:44 +0000
Federal Aviation Regulations
121.7 Definitions.
The following definitions apply to those sections of part 121 that apply to ETOPS:
ETOPS Area of Operation means one of the following areas:
(1) For turbine-engine-powered airplanes with two engines, an area beyond 60 minutes from an adequate airport, computed using a one-engine-inoperative cruise speed under standard conditions in still air.
(2) For turbine-engine-powered passenger-carrying airplanes with more than two engines, an area beyond 180 minutes from an adequate airport, computed using a one-engine-inoperative cruise speed under standard conditions in still air.
§121.161 Airplane limitations: Type of route.
(a) Except as provided in paragraph (e) of this section, unless approved by the Administrator in accordance with Appendix P of this part and authorized in the certificate holder's operations specifications, no certificate holder may operate a turbine-engine-powered airplane over a route that contains a point—
(1) Farther than a flying time from an Adequate Airport (at a one-engine-inoperative cruise speed under standard conditions in still air) of 60 minutes for a two-engine airplane or 180 minutes for a passenger-carrying airplane with more than two engines;
(2) Within the North Polar Area; or
(3) Within the South Polar Area.
---------------------------------------------------------------------------Appendix P to Part 121—Requirements for ETOPS and Polar Operations
Tony,
It is not because of the cold, it is because there is no place to land. When I flew over the north pole region there was always a place to divert to in an emergency. There are airports in Alaska, Canada, Greenland, Iceland, Norway, and of course. Russa.
John H.
