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#31
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Compass swinging?
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#32
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Compass swinging?
Newps wrote: wrote: IFR minima require a flight altitude 2000' above the peaks. Above the terrain, not necessarily the peaks. You may be in a valley several thousand feet below the peaks at a legal IFR altitude. Yup. Canadian IFR reg 602.124 (2) says: (2) When an aircraft referred to in subsection (1) is not being operated on an airway or air route or within airspace in respect of which a minimum altitude referred to in paragraph (1)(b) has been established, the pilot-in-command shall ensure that the aircraft is operated at or above (a) an altitude of 1,000 feet above the highest obstacle located within a horizontal distance of five nautical miles from the estimated position of the aircraft in flight; (b) in a region designated as a mountainous region in the Designated Airspace Handbook and identified therein as area 1 or 5, an altitude of 2,000 feet above the highest obstacle within a horizontal distance of five nautical miles from the estimated position of the aircraft in flight; and (c) in a region designated as a mountainous region in the Designated Airspace Handbook and identified therein as area 2, 3 or 4, an altitude of 1,500 feet above the highest obstacle within a horizontal distance of five nautical miles from the estimated position of the aircraft in flight. Nobody (sane) is going to take off with the intention to navigate that way with just a magnetic compass, because other regs require sufficient and appropriate radio gear to track such a course clear of the granite. However, if all the electrical goodies failed, a mag compass is better than nothing in such a place. But not much better. Here in the Rockies the peaks are many and close enough together that to be legal a pilot isn't going to be IFR in the valleys. Not legally, anyway. A few try it but usually come to grief. And their ELTs don't often work, either. Even with a good ELT they hit so hard that everything shatters. Dan |
#33
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Compass swinging?
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#34
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Compass swinging?
On Tue, 19 Dec 2006 20:47:50 -0700, Newps wrote:
wrote: Newps wrote: wrote: IFR minima require a flight altitude 2000' above the peaks. Above the terrain, not necessarily the peaks. You may be in a valley several thousand feet below the peaks at a legal IFR altitude. Here in the Rockies the peaks are many and close enough together that to be legal a pilot isn't going to be IFR in the valleys. Not legally, anyway. A few try it but usually come to grief. And their ELTs don't often work, either. Even with a good ELT they hit so hard that everything shatters. We are on the edge of the Rockies and have several airways that go between mountain ranges and have MEA's many thousands of feet below the peaks. I guess the FAA trusts avionics a lot more than the Canadian DOT. |
#35
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Compass swinging?
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