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 1322623 for flyrotary@lancaironline.net; Sun, 30 Jul 2006 07:53:20 -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 ; Sun, 30 Jul 2006 06:52:29 -0500 Message-ID: <3CAB2FE6D4255949A25157F5D666E623047DCA4C@bhdfwex103.bh.textron.com> From: "Hutchison, Jason" To: 'Rotary motors in aircraft' Subject: RE: [FlyRotary] Re: Back in the saddle again! Date: Sun, 30 Jul 2006 06:52:28 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2658.27) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C6B3CE.A18CA302" 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_01C6B3CE.A18CA302 Content-Type: text/plain Ed, You are correct! I have the 2.85 drive. I scraped the tangential muffler and now using spintech muffler. I received my velocity stacks last week, so it on to rev "B" intake. By the way how long are your runners? Thanks, Jason _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson Sent: Saturday, July 29, 2006 4:56 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Back in the saddle again! Jason, if I recall correctly you do have the 2.85 gear box. You should be seeing 5800-6000 rpm static (perhaps a bit less in that heat). I however do not recall your prop set up but if it is close to the 74x88 prop Tracy and I both fly with our 2.85 then it would appear your are not getting adequate airflow into( or out of) the engine. Ed ----- Original Message ----- From: Hutchison, Jason To: Rotary motors in aircraft Sent: Saturday, July 29, 2006 9:13 AM Subject: [FlyRotary] Back in the saddle again! 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_01C6B3CE.A18CA302 Content-Type: text/html Content-Transfer-Encoding: quoted-printable

Ed,

You are correct! I have the 2.85 = drive. I scraped the tangential muffler and now using spintech muffler. I = received my velocity stacks last week, so it on to rev "B" intake. By the way how long are your runners?

 

=

Thanks,

Jason

 

=

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson
Sent: Saturday, July 29, = 2006 4:56 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = Back in the saddle again!

 

Jason, if I recall correctly you do have the 2.85 = gear box.   You should be seeing 5800-6000 rpm static (perhaps a = bit less in that heat).  I however do not recall your prop set up but if it is = close to the 74x88 prop Tracy and I both fly with our 2.85 then it would = appear your are not getting adequate airflow into( or out of) the = engine.

 

Ed

 

 

----- Original Message ----- =

Sent: = Saturday, July 29, 2006 9:13 AM

Subject: = [FlyRotary] Back in the saddle again!

 

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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