X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from omr-d10.mx.aol.com ([205.188.108.134] verified) by logan.com (CommuniGate Pro SMTP 6.0.4) with ESMTP id 6228579 for lml@lancaironline.net; Fri, 26 Apr 2013 16:27:16 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.108.134; envelope-from=Sky2high@aol.com Received: from mtaomg-da01.r1000.mx.aol.com (mtaomg-da01.r1000.mx.aol.com [172.29.51.137]) by omr-d10.mx.aol.com (Outbound Mail Relay) with ESMTP id B2FEC70019F45 for ; Fri, 26 Apr 2013 16:26:41 -0400 (EDT) Received: from core-mtd003a.r1000.mail.aol.com (core-mtd003.r1000.mail.aol.com [172.29.235.201]) by mtaomg-da01.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 7ADF0E000082 for ; Fri, 26 Apr 2013 16:26:41 -0400 (EDT) From: Sky2high@aol.com Full-name: Sky2high Message-ID: <101876.4a8dce11.3eac3d01@aol.com> Date: Fri, 26 Apr 2013 16:26:41 -0400 (EDT) Subject: Re: [LML] Re: Prop overspeed??? To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_101876.4a8dce11.3eac3d01_boundary" X-Mailer: AOL 9.6 sub 168 X-Originating-IP: [67.175.156.123] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1367008001; bh=5yqCrbHBXrQXsVShSgakpWIwlqfjlaKuZK2cWnO6VXY=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=azV/0M+tKqkGN2a4YOFqfQUaqsUe7VPoUXX9lZzLAw5fAfHYlnKxcAWsZPBXWh/Fe kb3Cl5qk1Q0qilvhFvrPbE9KeWT8vWGOvrVy/yPXprA9OO+yj/Y6ydBszbT0pSZMcC wAtyJiUhx4Q12rCTamhq7OsSXbNNhA2c32e9hA1E= X-AOL-SCOLL-SCORE: 0:2:421922144:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d3389517ae3011f87 --part1_101876.4a8dce11.3eac3d01_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit BB and Angier, The amp load is somewhat normal (around 40 amps just for the pump) during pump operation. But, it is not recommended that the pump power come off the main bus, rather it should have its own wiring from the Master Relay through the 50/60 A breaker, thence to the intermittent contactors and ultimately to the pump. Its ground should be more direct too as other than the starter, this is the highest draw on power. Consider taking off at night with all the lights on (non-LED), pump in operation lifting the gear, transponder making a reply, you are holding the flap switch up and using your last remaining digit to key the mike for departure contact. What do you think the load is? heh? heh? If I had that all on the main bus it would burn........... Grayhawk In a message dated 4/26/2013 3:10:30 P.M. Central Daylight Time, bbradburry@bellsouth.net writes: Is that an electric prop? Why are the amps maxed out? B2 -----Original Message----- From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Greenbacks, UnLtd. Sent: Friday, April 26, 2013 3:10 PM To: Lancair Mailing List Subject: [LML] Re: Prop overspeed??? Today's 2hr flight was normal in all respects with the single exception that immediately after liftoff, the MVP-50 began screaming 'check RPM'. The RPM display was close to 4000 and fuel flow spiked. Nevertheless engine sounds remained normal. Sure got my attention. At 6:29:28 and just as the gear started to come up is when the RPM indication spiked for all of about 5 seconds. Haven't seen this before. What would the common, everyday prop overspeed sound like?? not that I ever want to hear it.... Angier Ames N4ZQ -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html --part1_101876.4a8dce11.3eac3d01_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

BB and Angier,

The amp load is somewhat normal (around 40 amps just for the= =20 pump) during pump operation. But, it is not recommended that the pump= =20 power come off the main bus, rather it should have its own wiring= from=20 the Master Relay through the 50/60 A breaker, thence to the intermittent=20 contactors and ultimately to the pump. Its ground should be more= =20 direct too as other than the starter, this is the highest draw on power.&nb= sp;=20 Consider taking off at night with all the lights on (non-LED= ),=20 pump in operation lifting the gear, transponder making a reply, you are hol= ding=20 the flap switch up and using your last remaining digit to key the mike for= =20 departure contact. What do you think the load is? heh? heh?

If I had that all on the main bus it would burn...........

Grayhawk

In a message dated 4/26/2013 3:10:30 P.M. Central Daylight Time,=20 bbradburry@bellsouth.net writes:

= Is that=20 an electric prop? Why are the amps maxed out?
B2

-----Ori= ginal=20 Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net]= On=20 Behalf Of
Greenbacks, UnLtd.
Sent: Friday, April 26, 2013 3:10 PMTo:=20 Lancair Mailing List
Subject: [LML] Re: Prop overspeed???

Today= 's=20 2hr flight was normal in all respects with the single exception=20 that
immediately after liftoff, the MVP-50 began screaming 'check RPM'= . The=20 RPM
display was close to 4000 and fuel flow spiked.
Nevertheless en= gine=20 sounds remained normal. Sure got my attention.
At 6:29:28 and just as = the=20 gear started to come up is when the RPM
indication spiked for all of= =20 about
5 seconds. Haven't seen this before.

What would the commo= n,=20 everyday prop overspeed sound like?? not that I ever
want to hear=20 it....

Angier Ames
N4ZQ

--
For archives a= nd=20 unsub=20 http://mail.lancaironline.net:81/lists/lml/List.html

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