Return-Path: Received: from [24.25.9.101] (HELO ms-smtp-02-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 3077142 for flyrotary@lancaironline.net; Sat, 13 Mar 2004 08:04:22 -0500 Received: from edward (clt78-020.carolina.rr.com [24.93.78.20]) by ms-smtp-02-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id i2DD4IkG025361 for ; Sat, 13 Mar 2004 08:04:20 -0500 (EST) Message-ID: <000801c408fb$6c5d64d0$2402a8c0@edward> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Nothing ever goes Smoothly! Date: Sat, 13 Mar 2004 08:02:21 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0005_01C408D1.8338A090" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0005_01C408D1.8338A090 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable -----=20 From: Tracy Crook=20 To: Rotary motors in aircraft=20 Sent: Friday, March 12, 2004 11:42 PM Subject: [FlyRotary] Re: Nothing ever goes Smoothly! In spite of all the glitches it is good to hear of all the progress on = rotary projects. Snags being the norm, mine are no exceptions. =20 The Renesis transplant was going smoothly after a rocky start (see = website for details) but I was hoping to do some minor mods to my old = intake manifold and stick it on the Renesis. No Go, the secondary ports = are significantly wider spaced and bolt pattern is way different. So, = since the new manifold is probably not going to happen until after Sun = 'n Fun I started on Plan B which was to put a 2.85 : 1 RD-1C drive on = my current 2nd gen engine along with the new prop I got from Performance = prop. =20 Got the drive swapped out today (the B drive still looks perfect = inside after ~ 500 hours) but things went down hill fast. New prop is = Right hand so the cutouts in the spinner & bulkheads were wrong (duh, = should have seen that one). Had a new spinner on hand that I was going = to put on the -4 (the existing one has a slight wobble) so started = trimming it for the new prop. Then did a trial fit and found that the = prop bolts are too short. New prop has a monster 88" pitch that = required a thicker hub. It is also lots longer (74"). Ordered new prop = bolts. Will spend the next few days tweaking my cooling system ducts to = improve the cooling enough to handle the increased power I hope the = engine will make at 6800 rpm which is what I am guessing it will turn = with the C drive & big stick. It would have been a cinch to make the 220 mph mark to collect the = Everett Hatch prize in the upcoming Sun 100 race with the Renesis but I = might still have a shot at it. Tracy Ah, Yes! The old "simple" modification nightmare {:>). Wow! 88" of = pitch and 74" in diameter. Be interesting to see what you get out of = that RV-4 with that prop. With that diameter prop, you'll probably have = to take off in a 3 point position {:>). =20 Can't wait to see the results - my calculations indicated you should = see over 218 mph TAS. Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ----- Original Message ------=_NextPart_000_0005_01C408D1.8338A090 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
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From:=20 Tracy = Crook
Sent: Friday, March 12, 2004 = 11:42=20 PM
Subject: [FlyRotary] Re: = Nothing ever=20 goes Smoothly!

 
In spite of all the glitches it is good to hear of all the = progress on=20 rotary projects.  Snags being the norm, mine are no = exceptions. =20
 
The Renesis transplant was going smoothly after a rocky start = (see=20 website for details) but I was hoping to do some minor mods to my old = intake=20 manifold and stick it on the Renesis.  No Go, the secondary ports = are=20 significantly wider spaced and bolt pattern is way = different.   So,=20 since the new manifold is probably not going to happen until after Sun = 'n Fun=20 I started on Plan B which was to put a 2.85 : 1  RD-1C drive on = my=20 current 2nd gen engine along with the new prop I got from Performance=20 prop.  
 
Got the drive swapped out today (the B drive still looks perfect = inside=20 after ~ 500 hours) but things went down hill fast.  New prop is = Right=20 hand so the cutouts in the spinner & bulkheads were = wrong (duh,=20 should have seen that one).  Had a new spinner on hand that I was = going=20 to put on the -4 (the existing one has a slight wobble) so started = trimming it=20 for the new prop.  Then did a trial fit and found that the prop = bolts are=20 too short.  New prop has a monster 88" pitch that required a = thicker=20 hub.  It is also lots longer (74").  Ordered new prop = bolts. =20 Will spend the next few days tweaking my cooling system ducts to = improve the=20 cooling enough to handle the increased power I hope the engine will = make at=20 6800 rpm which is what I am guessing it will turn with the C drive = & big=20 stick.
 
It would have been a cinch to make the 220 mph mark to collect = the=20 Everett Hatch prize in the upcoming Sun 100 race with the Renesis but = I might=20 still have a shot at it.
 
Tracy
 
Ah, Yes!  The old "simple" modification = nightmare=20 {:>).  Wow! 88" of pitch and 74" in diameter.  Be = interesting to=20 see what you get out of that RV-4 with that prop.  With that = diameter prop, you'll probably have to take off in a 3 point=20 position {:>).   
 
Can't wait to see the results - my = calculations=20 indicated you should see over 218 mph TAS.
 
Ed
 
Ed Anderson
RV-6A N494BW Rotary = Powered
Matthews,=20 NC
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