X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-ma03.mx.aol.com ([64.12.206.41] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTP id 5040581 for flyrotary@lancaironline.net; Sat, 02 Jul 2011 10:56:19 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.206.41; envelope-from=Bktrub@aol.com Received: from imo-da01.mx.aol.com (imo-da01.mx.aol.com [205.188.169.199]) by imr-ma03.mx.aol.com (8.14.1/8.14.1) with ESMTP id p62EtZ4a004089 for ; Sat, 2 Jul 2011 10:55:35 -0400 Received: from Bktrub@aol.com by imo-da01.mx.aol.com (mail_out_v42.9.) id q.1243.12a48ff (44230) for ; Sat, 2 Jul 2011 10:55:30 -0400 (EDT) Received: from smtprly-me01.mx.aol.com (smtprly-me01.mx.aol.com [64.12.95.102]) by cia-dd08.mx.aol.com (v129.10) with ESMTP id MAILCIADD088-b2b54e0f31605b; Sat, 02 Jul 2011 10:55:30 -0400 Received: from webmail-m151 (webmail-m151.sim.aol.com [64.12.101.140]) by smtprly-me01.mx.aol.com (v129.10) with ESMTP id MAILSMTPRLYME017-b2b54e0f31605b; Sat, 02 Jul 2011 10:55:28 -0400 References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Re: Test prop/club needed Date: Sat, 02 Jul 2011 10:55:28 -0400 X-AOL-IP: 50.46.146.205 In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: bktrub@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CE06DF37871BBE_1C7C_11B3E8_webmail-m151.sysops.aol.com" X-Mailer: AOL Webmail 33912-STANDARD Received: from 50.46.146.205 by webmail-m151.sysops.aol.com (64.12.101.140) with HTTP (WebMailUI); Sat, 02 Jul 2011 10:55:28 -0400 Message-Id: <8CE06DF378258FC-1C7C-84F7D@webmail-m151.sysops.aol.com> X-Spam-Flag:NO X-AOL-SENDER: Bktrub@aol.com ----------MB_8CE06DF37871BBE_1C7C_11B3E8_webmail-m151.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Charlie, That would be great. You can ship one to: Brian Trubee 16315 NE 46 St, Redmond, WA 98052 Let me know what the shipping and packaging costs and I'll get you $ ASAP= . Thanks, Brian=20 -----Original Message----- From: Charlie England To: Rotary motors in aircraft Sent: Sat, Jul 2, 2011 6:54 am Subject: [FlyRotary] Re: Test prop/club needed On 07/01/2011 11:30 PM, bktrub@aol.com wrote:=20 That would definately meet my needs. =20 Brian Trubee -----Original Message----- From: Ernest Christley To: Rotary motors in aircraft Sent: Fri, Jul 1, 2011 9:17 pm Subject: [FlyRotary] Re: Test prop/club needed On 06/30/2011 02:14 AM, Andrew Martin wrote:=20 > Ernest, I thought the calculation for a test club was X section =3D > 1/= 15th of length, means a 90mm square should be 1350mm or 54=E2=80=9D in you= r > language. mine is 90x1350mm calculated to absorb 190hp@2450rpm. do I= > have this wrong, or do you have a more up to date equation? only > prob= lem I can see with using a test club is needing supplemental air > for the= heat exchangers or very short runs.=20 > I used the attached spreadsheet.=20 >=20 >=20 I took the calipers to my dyno-prop today. After the glass and micro, I ha= ve a cross section of 88mm all around. With my 3.18 gear reduction, it wil= l only absorb 123Hp at 7000 RPM, according to the spreadsheet.=20 =20 The second page suggests having several bars. This one wasn't to hard to= make, so I guess making a few more will be in my future. I need to get ou= t to 100mm before I'll have a bar that the spreadsheet says will absorb ov= er 180Hp.=20 =20 Brian, I'll be cutting this bar down to 52" (1320mm) tomorrow or Sunday.= With a 2.85 reduction, 6500RPM will require 137Hp to spin the bar at 2281= .=20 =20 --=20 Homepage: http://www.flyrotary.com/=20 Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.h= tml=20 Brian, I've got a couple of cut-down props that were originally intended for 160= hp Lyc. RH rotation, 3/8" bolts, should fit Tracy's C gearbox. They were= originally good for around 2200 rpm static; they'd be significantly highe= r now since they were cut down a lot. If you want to use one, just let me know where to ship it. Charlie ----------MB_8CE06DF37871BBE_1C7C_11B3E8_webmail-m151.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8"
Charlie,
That would be great.  You can ship one to:
 
Brian Trubee
16315 NE 46 St,
Redmond, WA 98052
 
Let me know what the shipping and packaging costs and I'll get you&nb= sp; $ ASAP.
 
Thanks,
Brian



-----Original Message-----
From: Charlie England <ceengland@bellsouth.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Sat, Jul 2, 2011 6:54 am
Subject: [FlyRotary] Re: Test prop/club needed

On 07/01/2011= 11:30 PM, bktrub@aol.com wrote:=20
That would definately meet my needs.
 
Brian Trubee



-----Original Message-----
From: Ernest Christley <echristley@att.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net> Sent: Fri, Jul 1, 2011 9:17 pm
Subject: [FlyRotary] Re: Test prop/club needed

On 06/30/2011 02:14= AM, Andrew Martin wrote: 
> Ernest, I thought the calculation for a test club was X section =3D= > 1/15th of length, means a 90mm square should be 1350mm or 54=E2=80= =9D in your > language. mine is 90x1350mm calculated to absorb 190hp@24= 50rpm. do I > have this wrong, or do you have a more up to date equatio= n? only > problem I can see with using a test club is needing supplemen= tal air > for the heat exchangers or very short runs. 
> I used the attached spreadsheet. 
> 
> 
I took the calipers to my dyno-prop today. After the glass and micro, I ha= ve a cross section of 88mm all around. With my 3.18 gear reduction, it wil= l only absorb 123Hp at 7000 RPM, according to the spreadsheet. 
 
The second page suggests having several bars. This one wasn't to hard to= make, so I guess making a few more will be in my future. I need to get ou= t to 100mm before I'll have a bar that the spreadsheet says will absorb ov= er 180Hp. 
 
Brian, I'll be cutting this bar down to 52" (1320mm) tomorrow or Sunday.= With a 2.85 reduction, 6500RPM will require 137Hp to spin the bar at 2281= . 
 
-- 
Homepage: http://www= .flyrotary.com/ 
Archive and UnSub: http://mail.lancaironline.net:81/lists/fly= rotary/List.html 
Brian,

I've got a couple of cut-down props that were originally intended for 160= hp Lyc. RH rotation, 3/8" bolts, should fit Tracy's C gearbox. They were= originally good for around 2200 rpm static; they'd be significantly highe= r now since they were cut down a lot.

If you want to use one, just let me know where to ship it.

Charlie
 ----------MB_8CE06DF37871BBE_1C7C_11B3E8_webmail-m151.sysops.aol.com--