X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Received: from [66.219.56.248] (HELO qnsi-xch.qnsi.net) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 1981894 for flyrotary@lancaironline.net; Thu, 12 Apr 2007 14:17:22 -0400 Received-SPF: none receiver=logan.com; client-ip=66.219.56.248; envelope-from=bhughes@qnsi.net X-MimeOLE: Produced By Microsoft Exchange V6.5.6944.0 Content-class: urn:content-classes:message Return-Receipt-To: "Bobby J. Hughes" MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C77D37.41F6DB1E" Disposition-Notification-To: "Bobby J. Hughes" Subject: RE: [FlyRotary] Re: Mount offset Date: Thu, 12 Apr 2007 13:17:57 -0600 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: Mount offset Thread-Index: Acd9Na020PjZscA/QPCe1DCmXTiQMAAATONA From: "Bobby J. Hughes" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C77D37.41F6DB1E Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable With an $11K electric MT prop there is zero chance of changing the prop rotation.=20 =20 Bobby ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Russell Duffy Sent: Thursday, April 12, 2007 12:04 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Mount offset Personally, if I were to do the motor mount again, I think I would shoot for 0 deg offset. Just my 0.02 worth Ed =20 I agree with Ed, especially if there's ANY chance you'll change the prop rotation later. The RV-3 was nearly uncontrollable on takeoff with the wrong offset following the change from B to C redrive. I ended up shimming the mount to get it back to zero offset, and it wasn't bad at all after that. Of course changing the shims on the mount also means moving the front of the cowl where the spinner lines up, which is by far the worst part of changing this. =20 =20 Cheers, Rusty =20 ------_=_NextPart_001_01C77D37.41F6DB1E Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
With an $11K electric MT prop there is zero = chance of=20 changing the prop rotation.
 
Bobby

From: Rotary motors in aircraft=20 [mailto:flyrotary@lancaironline.net] On Behalf Of Russell=20 Duffy
Sent: Thursday, April 12, 2007 12:04 PM
To: = Rotary=20 motors in aircraft
Subject: [FlyRotary] Re: Mount=20 offset

Personally, if
I were to do the motor mount again, = I think I=20 would shoot for 0 deg offset.
Just my 0.02 worth

Ed

 
I agree = with Ed,=20 especially if there's ANY chance you'll change the prop rotation = later. =20 The RV-3 was nearly uncontrollable on takeoff with the wrong offset = following=20 the change from B to C redrive.  I ended up shimming the mount to = get it=20 back to zero offset, and it wasn't bad at all after that.  Of = course=20 changing the shims on the mount also means moving = the front of=20 the cowl where the spinner lines up, which is by far the worst part=20 of changing this.  
 
Cheers,
Rusty
  =




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