Subject: VTOL power to weight
From: Rotary Engine
Date: 9/6/2007, 9:20 PM
To: AARotary Engine


"I updated the web site so check out http://www.rotaryeng.net/VTOL.html
Let me know if you find any errors."

Paul,

In your Boeing table you are putting the Installed power to weight as
lb/sq.ft.  Do you mean to say hp/lb?  Since lb/sq.ft. is disk loading,
shouldn't the number be between 9 and 15?

I think your design would be benefited by having the pilot stand vertically
in the take-off and landing modes.  I have flown hang-gliders in California
with a prone harness and it is quite comfortable for a while.  After
transition, the pilot could "tuck-up" and reposition himself to a normal
sitting configuration.  Two sets of rudder pedals would be required of
course.  This would allow much better ingress/egress for the pilot.  This
would be unhandy for the pax unless he/she were beside the pilot instead of
behind.

Regards,

Norm DeBoer

Yes. Thanks for catching that Norm. I fixed it on the web site.
The numbers are correct as the HP is always less than the empty
and gross weight.

The problem with the side pax is too little wing area :) When sitting side
by side the fuselage width intrudes on the wing area. Maybe a
thicker flying wing design would work better in that case.
Should be less drag. You would need clearance under your knees
to operate the rudder pedals. Perhaps a handle bar would be better.
Back and fourth for pitch. Twist for roll and right and left for
rudder. I think the Air Scooter does that. I am beginning to like
the idea. Visibility to the right might be a problem.

I was thinking of just a window in the floor so the pilot
could bend forward and look down between his knees for landing.
Perhaps a strategically placed mirror would help. People park
by looking in the rear view mirror.

What is it like to lie on your stomach for 3 hours? I have never
done it.
-- 
Paul Lamar ...No rotor no motor.

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