How close will the propellers come to
hitting the ground on rotation for takeoff?
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of H & J Johnson
Sent: Wednesday, January 31, 2007
1:23 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: New Cowl
Contest
Thanks Grant, the Avanti was definatly an influence on the
design, I was going for absolute cruise efficency and in the end, if its
designed properly its possible to get some pretty interesting cruise
projections from a design like this. It still needs to be optimized a bit as
there is some issues between the nacell's and the fuze, but thats all fixable.
I designed it entirely on SolidWorks, the fuze shape is controled by something
like 85 algebra equations which are driven off of two 'control' splines. By
dragging the points on the spline I can control the station curvature and
smoothly transition down the length of the fuse, it only took 1 or 3 tries
before I figured out how to make it all work :-)
Jarrett
----- Original Message -----
From:
"Schemmel, Grant" <Grant.Schemmel@Aeroflex.com>
Date: Wednesday,
January 31, 2007 11:09 am
Subject:
[FlyRotary] Re: New Cowl Contest
> > I've several airframe design's but the one that prompted me
to
> build the machine was this one[attached]. It's a four seat
> [expandable to 6 but would be a little cramped <-- like the back
> seat of a 172] twin, using two 20b's or two four rotor's. It would
> also fly on 13b's but they would be in a minimum weight model, not
> alot of amenities. <
>
> Way cool Jarret - looks like a cut down Piagio Avanti, one of my
> personal favorite designs.
> Good luck on it!
>
>
> Grant Schemmel
>