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
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
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?!
Organizing
the hanger for Spring FWF and canopy work!
A Good
Credit Score is 700 or Above. See
yours in just 2 easy steps!
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