X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.121] verified) by logan.com (CommuniGate Pro SMTP 5.2.11) with ESMTP id 3440043 for flyrotary@lancaironline.net; Fri, 23 Jan 2009 08:31:07 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.121; envelope-from=eanderson@carolina.rr.com Received: from computername ([75.191.186.236]) by cdptpa-omta05.mail.rr.com with ESMTP id <20090123133028.SRJU28583.cdptpa-omta05.mail.rr.com@computername> for ; Fri, 23 Jan 2009 13:30:28 +0000 From: "Ed Anderson" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Mark's BBQ Run / 20B numbers Date: Fri, 23 Jan 2009 08:30:32 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0025_01C97D34.DB809BE0" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 Thread-Index: Acl9GvM5X+LoCniURi+1H6BDVjViFQAQ3o8A In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Message-Id: <20090123133028.SRJU28583.cdptpa-omta05.mail.rr.com@computername> This is a multi-part message in MIME format. ------=_NextPart_000_0025_01C97D34.DB809BE0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit No problem, Al. I think that kind of power at altitude with lower air density is great. I agree, normally when you think of a 3 rotor it/s in the 260 HP range at least, but as you point out that is at sea level air density. Regardless of the power output, nice to see the performance over the RV-7. Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Al Gietzen Sent: Friday, January 23, 2009 12:26 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Mark's BBQ Run / 20B numbers Sorry, Ed. I was recalling that on the dyno my 20B consistently put out 260-270 hp at 6000 and WOT; but that was corrected to standard day at sea level, and the fuel flow meter wasn't working. Based on the fuel burn of 15 gph, your numbers seem correct. What altitude were you flying, Mark? So when I'm cruising at 200 mph, and 10 gph; I'm doin' it at 110-120 hp. Hum-m-m. Al -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson Sent: Thursday, January 22, 2009 8:34 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Mark's BBQ Run / 20B numbers Doug, at 15 gph at 6000 rpm, Mark would be making approx 165 HP, perhaps a bit more, using a very conservative BSFC of 0.55. If you assume a bit better BSFC of 0.49 it would be around 183 HP. Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of DLOMHEIM@aol.com Sent: Thursday, January 22, 2009 9:38 PM To: Rotary motors in aircraft Subject: [FlyRotary] Mark's BBQ Run / 20B numbers Mark: Great story...thanks for posting it! At 6,000 rpm and 15 gph, how many HP do you think you're developing? Also, have you by chance flown side by side with another Lycoming powered ES for comparison purposes? If so what did you learn? We're going to have a couple of "burger burns" at our airport ((2OK2) just east of Tinker AFB) this Spring / Summer, so maybe you'll feel like going on a short cross country up this way and show our little EAA chapter what a three rotor looks and sounds like?! Blue Skies Doug RV-9A, 13B Organizing the hanger for Spring FWF and canopy work! _____ A Good Credit Score is 700 or Above. See yours in just 2 easy steps! __________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ------=_NextPart_000_0025_01C97D34.DB809BE0 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

No problem, Al.  I think that = kind of power at altitude with lower air density is great.  I agree, = normally when you think of a 3 rotor it/s in the 260 HP range at least, but as you = point out that is at sea level air density.

 

Regardless of the power output, = nice to see the performance over the RV-7.

 

Ed

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Al Gietzen
Sent: Friday, January 23, = 2009 12:26 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Mark's BBQ Run / 20B numbers

 

Sorry, Ed.  I was recalling = that on the dyno my 20B consistently put out 260-270 hp at 6000 and WOT; but = that was corrected to standard day at sea level, and the fuel flow meter = wasn’t working.  Based on the fuel burn of 15 gph, your numbers seem = correct.

 

What altitude were you flying, = Mark?

 

So when I’m cruising at 200 = mph, and 10 gph; I’m doin’ it at 110-120 hp. = Hum-m-m.

 

Al

 

-----Original = Message-----
From: Rotary motors in aircraft = [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson
Sent: Thursday, January = 22, 2009 8:34 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Mark's BBQ Run / 20B numbers

 

Doug, at 15 gph = at 6000 rpm, Mark would be making approx 165 HP, perhaps a bit more, using a = very conservative  BSFC of 0.55.  If you assume a bit better BSFC = of 0.49 it would be around 183 HP.

 

 

Ed<= o:p>

 

Ed = Anderson

Rv-6A N494BW = Rotary Powered

Matthews, = NC

eanderson@carolin= a.rr.com

http://www.andersonee.com

http://www.dmack.net/mazda/index.html<= o:p>

http://www.flyrotary.com/

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of DLOMHEIM@aol.com
Sent: Thursday, January = 22, 2009 9:38 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] = Mark's BBQ Run / 20B numbers

 

Mark:

 

Great = story...thanks for posting it!  At 6,000 rpm and 15 gph, how many HP do you = think you're developing?

 

Also, have you by chance flown side by side with another Lycoming powered ES = for comparison purposes?  If so what did you = learn?

 

We're going to have a couple of "burger burns" at our airport = ((2OK2) just east of Tinker AFB) this Spring / Summer, so maybe you'll feel like = going on a short cross country up this way and show our little EAA = chapter what a three rotor looks and sounds like?!  =

 

Blue Skies

 

Doug

RV-9A, 13B

Organizing the hanger for Spring FWF and canopy work!

 

A Good Credit Score is 700 or Above. See yours in just 2 easy steps!



__________ Information from ESET NOD32 Antivirus, version of virus = signature database 3267 (20080714) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com



__________ Information from ESET NOD32 Antivirus, version of virus = signature database 3267 (20080714) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com

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