Mailing List flyrotary@lancaironline.net Message #44869
From: Al Gietzen <ALVentures@cox.net>
Subject: RE: [FlyRotary] Re: Mark's BBQ Run / 20B numbers
Date: Thu, 22 Jan 2009 21:13:50 -0800
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>

Ed;

 

Seems like your numbers are about 100 hp - or maybe one rotor – too low.

 

Al G

 

-----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

 


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!

 


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