Lead Sled
Sitt'n on the throne...
- Joined
- Apr 1, 2004
- Posts
- 2,066
That works well for some airplanes. Other airplanes you can "double the distance". (160 mile leg X 2 = FL320) You'll get an altitude that, if ATC cooperates, will be the most fuel & time efficient. Some airplanes climb well (20 Series Lears of example) and 2.5 times the distance works well.LAFrequentflyer said:Cruise altitude for a short flight? Take the distance in NM, drop the last digit and add 5. (167 NM leg = 16 + 5 = FL210, rounded up or down as appropriate for ATC purposes.)
The method that I use to covert C to F and vise-versa is a little simpler: C to F = (2 X C) + 30. F to C = (F - 30) divided by 2. It's not quite as precise as other methods, but it's close enough for what we have to do - and our performance charts are based on Celsius.
For descents (back before VNAV ) it was 3 times the altitude for the descent point and 6 times the ground speed for the descent rate. It worked like a charm - no buffer required.
'Sled