X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [129.116.87.143] (HELO MAIL01.austin.utexas.edu) by logan.com (CommuniGate Pro SMTP 5.0c6) with ESMTP id 783310 for flyrotary@lancaironline.net; Tue, 25 Oct 2005 17:04:06 -0400 Received-SPF: none receiver=logan.com; client-ip=129.116.87.143; envelope-from=mark.steitle@austin.utexas.edu X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C5D9A7.88A3B579" Subject: RE: [FlyRotary] Re: It's a Start! Date: Tue, 25 Oct 2005 16:03:22 -0500 Message-ID: <87DBA06C9A5CB84B80439BA09D86E69E02C7BB33@MAIL01.austin.utexas.edu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: It's a Start! Thread-Index: AcXYxFW9G1q2IrD5RZSUzvQK4a1AfAA4dFOA From: "Mark R Steitle" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C5D9A7.88A3B579 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Joe, I made up a small manifold using some misc. fittings. You will need a 1/8" NPT port for the sensor, one for a gauge, and a third one with an air chuck fitting that connects to your air compressor. Use the air compressor regulator for adjustments and monitor the gauge (I used a spare oxy-acetylene gauge). You may be able to have your local welding supply check the accuracy of the welding gauge for little to no charge. =20 For temp measurements, I used boiling water and ice cubes for two reference points. I also used a commercial temp gauge as a secondary reference. =20 Mark S. =20 =20 ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Al Gietzen Sent: Monday, October 24, 2005 12:37 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: It's a Start! =20 Subject: [FlyRotary] Re: It's a Start! =20 Congrats, Joe. Making noise for the first time is a wonderful feeling. That fuel pressure sounds a bit high. Should be closer to 40. Is it properly calibrated? =20 Calibrated? No. That's going to be one of my projects this week - figure out how to calibrate all temp and pressure sensors. I know how to do the temp sensors - any suggestions on pressure testing? Maybe something connected to my air compressor - not sure the air compressor gauge is all that accurate either. =20 I bought some relatively inexpensive gauges from McMaster-Carr for calibration, pressure for fuel and negative pressure (vacuum) for MP; and borrowed a hand-held infrared temp gun to verify temps. Could not have calibrated without these. =20 Running without a prop is a bit risky - overrev can happen suddenly. =20 Al ------_=_NextPart_001_01C5D9A7.88A3B579 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Joe,

I made up a small manifold using = some misc. fittings.  You will need a 1/8” NPT port for the sensor, one = for a gauge, and a third one with an air chuck fitting that connects to your = air compressor.  Use the air compressor regulator for adjustments and = monitor the gauge (I used a spare oxy-acetylene gauge).  You may be able to = have your local welding supply check the accuracy of the welding gauge for little = to no charge.

 

For temp measurements, I used = boiling water and ice cubes for two reference points.  I also used a = commercial temp gauge as a secondary reference.

 

Mark S.  =

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Al Gietzen
Sent: Monday, October 24, = 2005 12:37 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = It's a Start!

 

Subject: [FlyRotary] Re: It's a Start!

 

Congrats, = Joe.

Making noise for = the first time is a wonderful feeling.

That fuel = pressure sounds a bit high. Should be closer to 40. Is it properly = calibrated?

 

Calibrated? No.  That’s going to be one of my projects this week – = figure out how to calibrate all temp and pressure sensors. I know how to do the = temp sensors – any suggestions on pressure testing?  Maybe = something connected to my air compressor – not sure the air compressor gauge = is all that accurate either.

 

I bought some relatively inexpensive gauges from McMaster-Carr for = calibration, pressure for fuel and negative pressure (vacuum) for MP; and borrowed a hand-held infrared  temp gun to verify temps.  Could not have calibrated without these.

 

Running without a prop is a bit = risky – overrev can happen suddenly.

 

Al

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