Re: torque on airplanes.

[brian whatcott <inet@INTELLISYS.NET>]

At 21:54 4/12/01 -0400, John Denker wrote:
> > During the slow take off phase, this means there is much more thrust
> > available, so that for a given mass flow through the prop disk, there is
> > more airflow acceleration than in faster phases of flight.
>
> False.

Design engineering being open to experimental verification, this looks
like an excellent proposition for an experimental validation or rebuttal,
 to avoid a needless conflict of opinion.
   These days, the GPS can provide very reasonable data streams on
 position and velocity to a laptop.
 Using a constant speed prop, I expect John could provide us with support
for his always interesting opinions.
 Does the velocity profile of such a plane show constant thrust,
decreasing thrust, or (as I suppose it will) an initially increasing
thrust (until the prop unstalls) and thereafter decreasing thrust through
increasing airspeeds?

Go for it!

:-)


brian whatcott <inet@intellisys.net>  Altus OK
                Eureka!