Return-Path: Received: from [65.54.241.215] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.2.2) with ESMTP id 427178 for flyrotary@lancaironline.net; Thu, 23 Sep 2004 16:06:40 -0400 Received-SPF: none receiver=logan.com; client-ip=65.54.241.215; envelope-from=lors01@msn.com Received: from hotmail.com ([65.54.168.118]) by hotmail.com with Microsoft SMTPSVC(5.0.2195.6713); Thu, 23 Sep 2004 13:06:03 -0700 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 23 Sep 2004 13:06:02 -0700 Received: from 65.54.98.23 by bay3-dav14.bay3.hotmail.com with DAV; Thu, 23 Sep 2004 20:05:45 +0000 X-Originating-IP: [65.54.98.23] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Renesis Testing Date: Thu, 23 Sep 2004 16:05:45 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002B_01C4A187.2ED22F40" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0006.2205 Seal-Send-Time: Thu, 23 Sep 2004 16:05:45 -0400 Message-ID: X-OriginalArrivalTime: 23 Sep 2004 20:06:02.0406 (UTC) FILETIME=[C02E6460:01C4A1A8] Return-Path: lors01@msn.com This is a multi-part message in MIME format. ------=_NextPart_000_002B_01C4A187.2ED22F40 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Re: [FlyRotary] Ceramic coating/CoolingYvon, Don't change your internal = stiffener. Assuming it is done correctly, that is the best way to do = it. =20 "External stiffener" is a term I made up for my make-shift fix. It is = just a piece of fairly stiff hose that I split down one side so I could = slip it over the silicone hose then put a clamp around it to force it = back into a round cross section. The silicone hose is in a position = where it needed to be curved. This caused it to flatten slightly and = since the silicone is very soft, it will easily constrict and flatten if = negative pressure is present. The stiffener helps to keep this from = happening. I will skip the long boring explanation of why I did it = this way. There was one but that doesn't mean it is the best way to do = it. Tracy=20 Objet : [FlyRotary] Re: Renesis Testing I was beginning to think the Renesis swap was a mistake. Up until = now, the engine felt weak compared to the 4 port 2nd gen I've been = flying although I haven't really had a chance to test it's max output = due to cooling concerns. Just got back from first flight test after making several changes. = Yes, I know that it is best to change one thing at a time so the results = can be accurately correlated but that must be balanced against the time = available. It takes me an average of 5 hours to do each = preparation/flight test/data evaluation and this does not include the = time required to make the changes. =20 Changes Main change was: Replaced NACA scoop / SCAT duct air inlet with = ram-air inlet.=20 Other changes included adding an additional coolant temp sensor = before coolant passes exhaust ports, cleaner cooling air exit from right = rad and oil cooler (result of removing the SCAT duct) and external = stiffener on water pump inlet hose (to prevent collapse in the event of = negative pressure). Allo Tracy. I have internal stiffener on my 1986 13B water pump = inlet hose and this is the first time I hear about external stiffener. I = would like to try that. Where can I get it? Please. Yvon. ------=_NextPart_000_002B_01C4A187.2ED22F40 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Re: [FlyRotary] Ceramic coating/Cooling
Yvon,  Don't change your internal stiffener.  Assuming it = is done=20 correctly, that is the best way to do it. 
 
"External stiffener" is a term I made up for my make-shift = fix. =20 It is just a piece of fairly stiff hose that I split down one side so I = could=20 slip it over the silicone hose then put a clamp around it to force it = back into=20 a round cross section.  The silicone hose is in a position = where it=20 needed to be curved.  This caused it to flatten slightly=20 and since the silicone is very soft, it will easily = constrict and=20 flatten if negative pressure is present.   The stiffener helps = to keep=20 this from happening.   I will skip the long boring explanation = of why=20 I did it this way.   There was one but that doesn't mean it is = the=20 best way to do it.
 
Tracy
Objet : [FlyRotary] Re: Renesis = Testing

I was beginning to think the Renesis swap was a mistake.  = Up until=20 now, the engine felt weak compared to the 4 port 2nd gen I've been = flying=20 although I haven't really had a chance to test it's max output due = to=20 cooling concerns.
 
Just got back from first flight test after making several=20 changes.  Yes, I know that it is best to change one thing at a = time so=20 the results can be accurately correlated but that must be balanced = against=20 the time available.  It takes me an average of 5 hours to = do each=20 preparation/flight test/data evaluation and this does not = include the=20 time required to make the changes. 
 
Changes
Main change was:   Replaced NACA scoop / = SCAT duct=20 air inlet with ram-air inlet. 
 
Other changes included adding an additional coolant temp=20 sensor before coolant passes exhaust ports, cleaner cooling air = exit=20 from right rad and oil cooler (result of removing the = SCAT duct) and=20 external stiffener on water pump inlet hose (to prevent = collapse in the=20 event of negative pressure).
 
Allo Tracy. I have internal stiffener on my = 1986=20 13B  water pump inlet hose and this is the first time I hear = about=20 external stiffener. I would like to try that. Where can I get it? = Please.=20 = Yvon.
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