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Old May 02, 2003, 03:02 AM
Ben Diss
Ben Diss
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Re: [RCSE] F5J - Gaining Altitude by adding Camber

Simon- Climb is the result of vertical thrust, not an excess of lift, so this may make no difference. If, on the other hand, TE camber could allow the wing to produce more lift with less drag the amount of vertical thrust may increase.

Having said that, the full scale conventional wisdom holds that the greatest rate of climb is attained with no flaps and the greatest angle of climb is attained with some low flap setting. This, of course, may have no relevance to our flying.

I suppose this whole line of thinking is what brought you to ask if anyone has actually tested this. I'm not sure a LoLo would prove anything because it doesn't measure AOA. I'd be interested in what you find.

-Ben

Simon Van Leeuwen wrote:
>
> I was contemplating the idea of trading velocity for altitude by adding
> TE camber during ascent on an 3.4 meter F5J Moebius, as opposed to
> leaving the TE clean and working the elevator based on observation.
>
> At first thought, it would seem that it is six of one, and half a dozen
> of another. The end-goal is to increase ascent-rate efficiency during
> motor-run, in other words get to altitude sooner using the same amount
> of power.
>
> Any thoughts...anyone experimented with this before I put a LoLo in and
> measure?
> --
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