X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 10 [X] Return-Path: Received: from bay0-omc3-s7.bay0.hotmail.com ([65.54.246.207] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 2019348 for flyrotary@lancaironline.net; Tue, 01 May 2007 09:57:04 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.54.246.207; envelope-from=lors01@msn.com Received: from hotmail.com ([65.54.250.77]) by bay0-omc3-s7.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.2668); Tue, 1 May 2007 06:56:06 -0700 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 1 May 2007 06:56:06 -0700 Message-ID: Received: from 4.171.129.248 by BAY115-DAV5.phx.gbl with DAV; Tue, 01 May 2007 13:56:03 +0000 X-Originating-IP: [4.171.129.248] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] trimmed prop Date: Tue, 1 May 2007 09:55:58 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0212_01C78BD6.EB1347C0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.50.0034.2000 Seal-Send-Time: Tue, 1 May 2007 09:55:58 -0400 X-OriginalArrivalTime: 01 May 2007 13:56:06.0651 (UTC) FILETIME=[76E974B0:01C78BF8] Return-Path: lors01@msn.com This is a multi-part message in MIME format. ------=_NextPart_000_0212_01C78BD6.EB1347C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sorry to hear about the prop Steve but glad the engine was working well. = You are obviously as meticulous about building the plane as you were in = your investigation into the injector mystery; beautiful job. Hope you = get many hours of pleasure flying it. It does sound like you are over = proped or engine is "under tuned". What are the numbers on that prop? =20 Tracy=20 ----- Original Message -----=20 From: sboese=20 To: Rotary motors in aircraft=20 Sent: Monday, April 30, 2007 5:01 PM Subject: [FlyRotary] trimmed prop On Wednesday of last week I made my first XC flight with my 13B = powered RV6A. The flight was from Laramie, WY, to Benson, MN, with a distance covered of 507 nm. It took 4hr 15 min non stop using 30.4 gal of fuel leaving 7.6 gal reserve. We started at an initial gross wt of 1796 lb = and cg of 73.2 in. That was my first excursion to density altitudes less = than 7000 ft. It was really fun to see climb rates over 1000 fpm with 1700 = lb gross wt at 3200 ft density altitude and to feel the increased = acceleration on take off. Static rpm at 3200 ft density altitude was 4870 with 27 = in MAP and showing 11.1 gal/hr fuel consumption rate. That makes me think I = could use a prop with less pitch. My extrapolation of the mixture table for = the EC2 with the snubbers installed worked very well with the higher = manifold pressures that had not been tried previously with my setup. That was = good news. The bad news is what happens when I forget to remove the tow bar and = feed it to the propeller (see attached photo). No injuries or other damage = occurred as far as has been determined at this point. The 12 hour drive back = home yesterday gave me plenty of time to reflect on my stupidity. I = concluded that my "experiment" was probably not the best way to investigate the = effect of a smaller prop. Needless to say, if someone has upgraded to the = 2.85 drive and has a prop for a 2.17 drive for sale, I would be interested = to know about that. Sheepishly, Steve Boese ------=_NextPart_000_0212_01C78BD6.EB1347C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Sorry to hear about the prop Steve but glad the engine was working=20 well. You are obviously as meticulous about building the = plane as you=20 were in your investigation into the injector mystery; beautiful = job. Hope=20 you get many hours of pleasure flying it. It does sound like you = are over=20 proped or engine is "under tuned". What are the numbers on that=20 prop?

Tracy

----- Original Message -----

From: sboese

To: Rotary motors in = aircraft

Sent: Monday, April 30, 2007 = 5:01=20 PM

Subject: [FlyRotary] trimmed = prop

On Wednesday of last week I made my first XC flight = with my 13B=20 powered
RV6A. The flight was from Laramie, WY, to Benson, MN, = with a=20 distance
covered of 507 nm. It took 4hr 15 min non stop using = 30.4=20 gal of fuel
leaving 7.6 gal reserve. We started at an initial = gross=20 wt of 1796 lb and
cg of 73.2 in. That was my first excursion to = density=20 altitudes less than
7000 ft. It was really fun to see climb = rates=20 over 1000 fpm with 1700 lb
gross wt at 3200 ft density altitude and = to feel=20 the increased acceleration
on take off. Static rpm at 3200 ft = density=20 altitude was 4870 with 27 in MAP
and showing 11.1 gal/hr fuel = consumption=20 rate. That makes me think I could
use a prop with less = pitch. =20 My extrapolation of the mixture table for the
EC2 with the snubbers = installed worked very well with the higher manifold
pressures that = had not=20 been tried previously with my setup. That was = good
news.

The=20 bad news is what happens when I forget to remove the tow bar and feed = it
to=20 the propeller (see attached photo). No injuries or other damage=20 occurred
as far as has been determined at this point. The 12 = hour=20 drive back home
yesterday gave me plenty of time to reflect on my=20 stupidity. I concluded
that my "experiment" was probably not = the best=20 way to investigate the effect
of a smaller prop. Needless to = say, if=20 someone has upgraded to the 2.85
drive and has a prop for a 2.17 = drive for=20 sale, I would be interested to
know about=20 that.

Sheepishly,

Steve = Boese

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