X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Received: from access.aic-fl.com ([207.30.253.2] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 1996183 for flyrotary@lancaironline.net; Fri, 20 Apr 2007 13:45:01 -0400 Received-SPF: softfail receiver=logan.com; client-ip=207.30.253.2; envelope-from=unicorn@gdsys.net Received: from main (gdsi-27.gdsys.net [207.30.255.27]) by access.aic-fl.com (Rockliffe SMTPRA 4.5.6) with SMTP id for ; Fri, 20 Apr 2007 12:40:16 -0500 Message-ID: <002101c7837b$f1628450$1bff1ecf@main> From: "Richard Sohn" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Single Rotor Testing Date: Fri, 20 Apr 2007 13:44:34 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001E_01C78352.07FB5FE0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_001E_01C78352.07FB5FE0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Friday, April 20, 2007 8:38 AM Subject: [FlyRotary] Re: Single Rotor Testing The gearbox is 23lb, so it will be a little less. However you would = need all the other stuff under the cowling, which will make it a 179lb FF. Hi Richard, If we're both including the same stuff, you've come in about 50 lbs = below the weight of mine with the stock housings, and the Autoflight = drive. That's pretty amazing! =20 Have you moved it to a test stand that will allow a real prop yet? = I'm dying to see if you have the same torque reversal resonance = problems. I hope not, but I don't know how you won't, unless the = coupler in the Hirth drive is that much different. I've just ordered a = softer coupler for the Autoflight drive, and will see if that helps. =20 Rusty Hi Rusty, I just started working on that test stand. It will probably be ready = some time in summer, I do not need it right now for the tests I am = doing.=20 If there is an issue with the coupling, the coupler may be replaced = with a clutch within the confinement of the present gearbox. Richard Sohn N2071U -------------------------------------------------------------------------= ----- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 269.5.5/769 - Release Date: = 4/19/2007 5:56 PM ------=_NextPart_000_001E_01C78352.07FB5FE0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
 
----- Original Message -----
From:=20 Russell=20 Duffy
Sent: Friday, April 20, 2007 = 8:38=20 AM
Subject: [FlyRotary] Re: Single = Rotor=20 Testing

The gearbox is 23lb, so it will be a little less. = However you=20 would need all
the other stuff under the cowling, which will make = it a=20 179lb FF.

Hi Richard,

If we're both including = the same stuff,=20 you've come in about 50 lbs below the weight of mine with the stock = housings,=20 and the Autoflight drive.  That's pretty amazing!  =

Have you moved it to a test = stand that will=20 allow a real prop yet?  I'm dying to see if you have the same = torque=20 reversal resonance problems.  I hope not, but I don't know how = you won't,=20 unless the coupler in the Hirth drive is that much different.  = I've just=20 ordered a softer coupler for the Autoflight drive, and will see if = that=20 helps. 

Rusty

Hi Rusty,

I just started working on that test = stand. It will=20 probably be ready some time in summer, I do not need it right now for = the=20 tests I am doing.

If there is an issue with the coupling, = the coupler=20 may be replaced with a clutch within the confinement of the present=20 gearbox.

Richard Sohn
N2071U

No virus found in this incoming message.
Checked by AVG Free = Edition.
Version: 7.5.446 / Virus Database: 269.5.5/769 - Release = Date:=20 4/19/2007 5:56 PM
------=_NextPart_000_001E_01C78352.07FB5FE0--