X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [216.148.248.31] (HELO enrwcap002.ent.textron.com) by logan.com (CommuniGate Pro SMTP 5.1c.2) with ESMTP id 1321626 for flyrotary@lancaironline.net; Sat, 29 Jul 2006 09:14:31 -0400 Received-SPF: none receiver=logan.com; client-ip=216.148.248.31; envelope-from=JHutchison2@bellhelicopter.textron.com Received: by bhdfwex110.bh.textron.com with Internet Mail Service (5.5.2658.27) id ; Sat, 29 Jul 2006 08:13:39 -0500 Message-ID: <3CAB2FE6D4255949A25157F5D666E623047DCA4A@bhdfwex103.bh.textron.com> From: "Hutchison, Jason" To: 'Rotary motors in aircraft' Subject: Back in the saddle again! Date: Sat, 29 Jul 2006 08:13:40 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2658.27) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C6B310.CF0E524E" This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C6B310.CF0E524E Content-Type: text/plain Update on my airplane, I now have four flights on my engine after replacing the seals. Last night I was up for an hour. At 5000msl it was 28C temps stabilized at 197(water) and 188 oil. I still need more power. I am only getting 5000rpm static which makes for very shallow climb outs. In the air, I'm getting between 5500 and 6000 rpm at about 140mph (no wheel pants or fairings). I did an experiment with a 12" fan mounted behind the radiator. The fan keeps the water temp under 190 on the ground, but caused about a 10-15 degree increase in the air. So now I'm thinking about mounting a small radiator with a fan under the engine. My next project is to rework the intake for more static rpm. Jason (waiting for winter or at least temps below 90 degrees) ------_=_NextPart_001_01C6B310.CF0E524E Content-Type: text/html Content-Transfer-Encoding: quoted-printable

Update on my airplane, I now have four flights on my = engine after replacing the seals. Last night I was up for an hour. At 5000msl = it was 28C temps stabilized at 197(water) and 188 oil. I still need more = power. I am only getting 5000rpm static which makes for very shallow climb outs. In = the air, I'm getting between 5500 and 6000 rpm at about 140mph (no wheel pants = or fairings).

I did an experiment with a 12" fan mounted behind = the radiator. The fan keeps the water temp under 190 on the ground, but = caused about a 10-15 degree increase in the air. So now I'm thinking about mounting a small radiator with a fan under the engine. =

My next project is to rework the intake for more = static rpm.

Jason (waiting for winter or at least temps below 90 degrees)

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