X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail26.syd.optusnet.com.au ([211.29.133.167] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTPS id 1006446 for flyrotary@lancaironline.net; Sat, 18 Jun 2005 19:00:09 -0400 Received-SPF: none receiver=logan.com; client-ip=211.29.133.167; envelope-from=lendich@optusnet.com.au Received: from george (d220-236-0-190.dsl.nsw.optusnet.com.au [220.236.0.190]) by mail26.syd.optusnet.com.au (8.12.11/8.12.11) with SMTP id j5IMxI6E007584 for ; Sun, 19 Jun 2005 08:59:20 +1000 Message-ID: <005001c5745a$1d5733e0$be00ecdc@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: re-drive question for George and Richard Date: Sun, 19 Jun 2005 09:04:43 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_004D_01C574AD.EE93B930" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format. ------=_NextPart_000_004D_01C574AD.EE93B930 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message 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. Hi Richard, 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 Thanks, Rusty (climb test will have to wait until tomorrow) Hi Rusty, you could not use the componet weights of my set up because the = externals of my side housing have nothing in common eternally with the = MAZDA housing. My mounting plate for the redrive is much smaller than = what you need. My flywheel is 10" dia, and the mounting of the adapter = plate is very close around the flywheel. Essentially, I have nothing = further out than the tension Bolts, or for that matter, the rotor = housing outer contour. Sorry to be not of more help on this one. Richard Sohn N-2071U Richard, Thems good ideas, I had wanted to use a smaller flywheel myself and = found the Subaru to be the same tooth profile - but as luck would have = it, I had to make it compatible with the auto flex-plate, as that's what = most are using. George ( down under) ------=_NextPart_000_004D_01C574AD.EE93B930 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message

 
yes, the 85lb is just the block as = it is=20 running now. The FF, dry, will be 170lb. Keep in mind it is 12A = based. The=20 13B based will be a bit heavier.
 
 
Hi=20 Richard,
 
Do you=20 have a weight for all of your redrive = components? =20 I'm trying to get a comparison to Tracy's 45 lbs weight, which = includes=20 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?  =20
 
I think I=20 guessed that would all be about 30 lbs.  Tracy's drive=20 could fairly easily be reduced to about 40 lbs, and possibly a = bit=20 lower if weight becomes critical.  Fortunately, it's not = critical for=20 me at the moment.  It's also yet to be seen how the RD-1C = will=20 cope with the pulse frequency of the single rotor near = idle. =20 There may well be some dampener durometer modification to be=20 done.  I won't know until I fire it up, which should be = around the=20 end of the Summer.  
 
Thanks,
Rusty=20 (climb test will have to wait until tomorrow)
 
Hi=20 Rusty,
 
you could=20 not use the componet weights of my set up because the externals of = my side=20 housing have nothing in common eternally with the MAZDA housing. My = mounting=20 plate for the redrive is much smaller than what you need. My = flywheel is 10"=20 dia, and the mounting of the adapter plate is very close around the=20 flywheel. Essentially, I have nothing further out than the tension = Bolts, or=20 for that matter, the rotor housing outer = contour.
 
Sorry to=20 be not of more help on this one.
 
Richard = Sohn
N-2071U
 
Richard,
Thems good=20 ideas, I had wanted to use a smaller flywheel myself and found the = Subaru to=20 be the same tooth profile - but as luck would have it, I had to make = it=20 compatible with the auto flex-plate, as that's what most are=20 using.
George ( down=20 under)
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