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Disposition-Notification-To: "Bobby J. Hughes" <bhughes@qnsi.net>
Subject: RE: [FlyRotary] Re: Mount offset
Date: Wed, 11 Apr 2007 07:47:38 -0600
Message-ID: <EA466D157BD06343B56C99D7353756599CDD88@qnsi-xch.qnsi.net>
Thread-Topic: [FlyRotary] Re: Mount offset
Thread-Index: Acd75h1NnfxKLI3BTUOh22EwQ8da3QAWZD+g
From: "Bobby J. Hughes" <bhughes@qnsi.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>

Your correct Ernest. I should have specified an RV. I think all of the
RV's are designed the same. I have read somewhere it is 1.25 degrees.
Just trying to confirm.

Bobby=20

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Ernest Christley
Sent: Tuesday, April 10, 2007 8:05 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Mount offset

Bobby J. Hughes wrote:
> Does anyone have a recommendation how far the mount should be offset=20
> for a Renesis \ C-drive combo?  1.25 degs, 2 degs?
> =20
> =20
> =20
> Bobby J Hughes
> =20
>
>  =20

That would completely depend on what airframe you're putting it on.  The
offset is incorporated for a variety of reasons, some simple and some
very complicated, with the goal of having the airplane fly straight at
cruise speed, or maybe not need so much rudder on climbout, or to have
the airplane respond correctly when the engine is firewalled on a
go-around, or ... or...

It all depends on what the designer was trying to accomplish and how the
thrust line and torques vectors fit in with the rest of the airplane.


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