Mailing List flyrotary@lancaironline.net Message #35286
From: H & J Johnson <hjjohnson@sasktel.net>
Subject: Re: [FlyRotary] Re: New Cowl Contest
Date: Wed, 31 Jan 2007 13:23:14 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

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
>
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