Re: torque on airplanes.

["S.Goelzer" <sgoelzer@COEBROWNACADEMY.COM>]

> John S. Denker [mailto:jsd@MONMOUTH.COM]wrote:
>
> The fundamental laws of physics do _not_ impose any relevant limitations
> on
> the acceleration.  However, particular designs may have limitations.  I've
> never done the experiment, but I'm told that if you mishandle the engine
> controls on a P-51 Mustang at very low speeds you can lose control of the
> yaw axis.  (It's got a huge turbocharged engine, a huge propeller, and
> only
> modest amounts of rudder authority at low speeds.)
>
> The student has little to worry about;  nobody is going to turn him loose
> in a P-51.

Just as a note,
this happens frequently for the radio controlled airplanes that I fly. The power
to weight ratio for these planes is typically absurd compared to a full size
plane (2 HP on a 5 pound plane).  Novice RC pilots who bring a plane  into the
air under full  power with low airspeed usually experience a "ground loop" (half
loop ,half roll, lots of pieces).

Scott


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*****************************
S.Goelzer
Physics Teacher
Coe - Brown Northwood Academy
Northwood NH 03261
603-942-5531 ext43
sgoelzer@coebrownacademy.com
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