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#41
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Maintaining altitude
On May 19, 9:11*am, Mxsmanic wrote:
terry writes: Good point MX , another idea, I could get an inflatable copilot, like in the *Flying high movie, and fill this with water instead of air. Then I could just buckle him in! * and if I *get thirsty *I could just.......no maybe not.... wonder if you can get girl inflatable pilots?. I don't see any clear advantage to humanoid ballast. Help scare off a potential simulated hijacker? Cheers |
#42
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Maintaining altitude
Anthony, in my real Baron, when detecting an updraft, I will immediately
begin a tight circle to stay in the updraft and simultaneously feather both engines. This saves tremendously on the ever increasing cost of gas. I can then glide to the next thermal, and am able to accomplish extensive cross country trips of nearly a thousand miles on just a few gallons of gas. It is one of the most economical ways of flying multiengine aircraft. When necessary I can always do a re-start (see unfeathering accumulators). |
#43
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Maintaining altitude
On Mon, 19 May 2008 16:41:06 -0500, "Viperdoc"
wrote: When necessary I can always do a re-start (see unfeathering accumulators). Failing a restart, you can always eject! |
#44
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Maintaining altitude
On May 16, 9:15 am, wrote:
In rec.aviation.piloting Mxsmanic wrote: Is it better (in a small GA aircraft) to maintain altitude using minor changes in pitch and trim alone, or using both pitch/trim and throttle adjustments? I'm asking just about maintaining altitude once there, not climbing or descending to an altitude. Well, if you had actually read any of the books by experts you go on about, you would know this. Or had taken actual instruction, but I digress. Once established in cruise and assuming power and trim have been properly adjusted, you will in general have two factors that will cause the altitude to change. One is vertical wind, i.e. turbulance and thermals. This usually requires yoke input. The other is the airplane gets lighter as you burn off fuel. This is what trim is for. Theoretically the combination of temperature and pressure could cause the engine output power to change requiring throttle and mixture adjustments, but I don't see that happening in the typical C-172 class flight. -- Jim Pennino Remove .spam.sux to reply. I find that tiny power changes work better for maintaining altitude than fooling with small trim changes. If the airplane is climbing a bit, cranking in nose-down trim will increase speed and upset the whole equilibrium somewhat. If one does this to descend back to target altitude, the extra speed obtained will be a pain to deal with as the airplane is retrimmed nose-up to stop the descent. Speed will bleed off and the airplane will sink below altitude. Up and down we go. Small---really small---power changes work better. Dan |
#45
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Maintaining altitude
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