X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 25 Mar 2009 08:16:21 -0400 Message-ID: X-Original-Return-Path: Received: from QMTA12.emeryville.ca.mail.comcast.net ([76.96.27.227] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3558351 for lml@lancaironline.net; Tue, 24 Mar 2009 20:29:26 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.27.227; envelope-from=j.hafen@comcast.net Received: from OMTA01.emeryville.ca.mail.comcast.net ([76.96.30.11]) by QMTA12.emeryville.ca.mail.comcast.net with comcast id XCBo1b00W0EPchoACCUsAa; Wed, 25 Mar 2009 00:28:52 +0000 Received: from [10.128.90.198] ([75.151.125.133]) by OMTA01.emeryville.ca.mail.comcast.net with comcast id XCUq1b00K2soXEK8MCUrhX; Wed, 25 Mar 2009 00:28:51 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 X-Original-Date: Tue, 24 Mar 2009 17:28:49 -0700 Subject: Exercising Feathering Prop after Start-up From: John Hafen X-Original-To: Lancair Mailing List X-Original-Message-ID: Thread-Topic: Exercising Feathering Prop after Start-up Thread-Index: Acms4KqAg7Ib1db7HkS03TsECx25ug== Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3320760530_1988258" > 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. --B_3320760530_1988258 Content-type: text/plain; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable Greetings Fellow Travelers: With over 100 hours now on my IVP, I=B9m finally starting to read some of the manuals that came with various components of the plane. Like avionics and stuff. You know, those flashing light thingies on the =B3dash board=B2 that talk to you and drown out the IPod music. Like =B3Angle, Angle, PUSH!=B2 How=B9= s a guy supposed to listen to tunes when someone keeps telling him to angle angle push? Is that a new dance or something? So in my pile of stuff I found something from Continental that actually tells you how to operate the engine. Clever. Under =B3Check Propeller Operation,=B2 it says, =B3Set throttle to 1700 RPM and move the propeller governor control toward lo= w RPM position and observe tachometer. Engine speed should decrease to minimum governing speed or as specified by the airframe manufacturer. Return governor control to high speed position. Using this procedure the RPM drop should be a minimum of 400 RPM do not exceed 500 RPM. Repeat this procedure two or three times to circulate warm oil into the propeller hub.=B2 Then it says: =B3Where applicable move propeller control to =8Cfeather=B9 position. Observe fo= r RPM drop below minimum governing RPM. Then return control to =B3full increase=B2 RPM position in accordance with the airframe manufacturer=B9s requirements.=B2 Do you guys actually do that?? I admit I haven=B9t done it because I was afraid the feathered prop would lug down the engine to the point it killed it and I wouldn=B9t be able to un-feather the prop by myself. Also, in the first paragraph above it says that in exercising the prop that the RPM drop should not exceed 500 RPM. Seems that if you went to full feather, you would absolutely exceed the 500 RPM drop. So do you guys do this check? How? If you do it, do you just quickly feather then unfeather while you still have enough RPM to drive the prop flat again?? Please advise and thanks. But don=B9t talk while the music is playing. John Hafen --B_3320760530_1988258 Content-type: text/html; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable Exercising Feathering Prop after Start-up Greetings Fellow Travelers:

With over 100 hours now on my IVP, I’m finally starting to read some = of the manuals that came with various components of the plane.  Like av= ionics and stuff.  You know, those flashing light thingies on the ̶= 0;dash board” that talk to you and drown out the IPod music.  Lik= e “Angle, Angle, PUSH!”  How’s a guy supposed to list= en to tunes when someone keeps telling him to angle angle push?  Is tha= t a new dance or something?

So in my pile of stuff I found something from Continental that actually tel= ls you how to operate the engine.  Clever.

Under “Check Propeller Operation,” it says,

“Set throttle to 1700 RPM and move the propeller governor control tow= ard low RPM position and observe tachometer.  Engine speed should decre= ase to minimum governing speed or as specified by the airframe manufacturer.=  Return governor control to high speed position.  Using this proc= edure the RPM drop should be a minimum of 400 RPM do not exceed 500 RPM. &nb= sp;Repeat this procedure two or three times to circulate warm oil into the p= ropeller hub.”

Then it says:

“Where applicable move propeller control to ‘feather’ pos= ition.  Observe for RPM drop below minimum governing RPM.  Then re= turn control to “full increase” RPM position in accordance with = the airframe manufacturer’s requirements.”

Do you guys actually do that??

I admit I haven’t done it because I was afraid the feathered prop wou= ld lug down the engine to the point it killed it and I wouldn’t be abl= e to un-feather the prop by myself.

Also, in the first paragraph above it says that in exercising the prop that= the RPM drop should not exceed 500 RPM.  Seems that if you went to ful= l feather, you would absolutely exceed the 500 RPM drop.

So do you guys do this check?  How?  If you do it, do you just qu= ickly feather then unfeather while you still have enough RPM to drive the pr= op flat again??

Please advise and thanks.  But don’t talk while the music is pla= ying.

John Hafen
 --B_3320760530_1988258--