X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: <13brv3@bellsouth.net> Received: from imf24aec.mail.bellsouth.net ([205.152.59.72] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTP id 1006049 for flyrotary@lancaironline.net; Sat, 18 Jun 2005 10:39:42 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.72; envelope-from=13brv3@bellsouth.net Received: from ibm68aec.bellsouth.net ([65.6.194.9]) by imf24aec.mail.bellsouth.net with ESMTP id <20050618143857.PABQ26489.imf24aec.mail.bellsouth.net@ibm68aec.bellsouth.net> for ; Sat, 18 Jun 2005 10:38:57 -0400 Received: from rd ([65.6.194.9]) by ibm68aec.bellsouth.net with ESMTP id <20050618143857.LWMV29052.ibm68aec.bellsouth.net@rd> for ; Sat, 18 Jun 2005 10:38:57 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: re-drive question for George and Richard Date: Sat, 18 Jun 2005 09:38:57 -0500 Message-ID: <000501c57413$75de22e0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0006_01C573E9.8D081AE0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C573E9.8D081AE0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable yes, the 85lb is just the block as it is running now. The FF, dry, will = be 170lb. Keep in mind it is 12A based. The 13B based will be a bit = heavier. =20 =20 Hi Richard, =20 Do you have a weight for all of your redrive components? I'm trying to = get a comparison to Tracy's 45 lbs weight, which includes everything but the flex plate itself (I assume). When you add the Hirth drive, mounting = plate and hardware, input shaft, drive coupling mechanism, what does it come = to? =20 I think I guessed that would all be about 30 lbs. Tracy's drive could fairly easily be reduced to about 40 lbs, and possibly a bit lower if = weight becomes critical. Fortunately, it's not critical for me at the moment. It's also yet to be seen how the RD-1C will cope with the pulse = frequency of the single rotor near idle. There may well be some dampener durometer modification to be done. I won't know until I fire it up, which should = be around the end of the Summer. =20 =20 Thanks, Rusty (climb test will have to wait until tomorrow) =20 ------=_NextPart_000_0006_01C573E9.8D081AE0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
yes, the 85lb is just the block as it = is running=20 now. The FF, dry, will be 170lb. Keep in mind it is 12A based. The 13B = based=20 will be a bit heavier.
 
 
Hi=20 Richard,
 
Do you=20 have a weight for all of your redrive = components?  I'm=20 trying to get a comparison to Tracy's 45 lbs weight, which includes = everything but the flex plate itself (I assume).  When you add = the=20 Hirth drive, mounting plate and hardware, input shaft, drive=20 coupling mechanism, what does it come to?   =
 
I think I=20 guessed that would all be about 30 lbs.  Tracy's drive = could fairly=20 easily be reduced to about 40 lbs, and possibly a bit lower if weight = becomes=20 critical.  Fortunately, it's not critical for me at the = moment. =20 It's also yet to be seen how the RD-1C will cope with the = pulse frequency=20 of the single rotor near idle.  There may well be some = dampener=20 durometer modification to be done.  I won't know until I fire = it up,=20 which should be around the end of the = Summer.  
 
Thanks,
Rusty (climb=20 test will have to wait until tomorrow)
    
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