Thanks Larry...being from Dallas I depend on that fan up front to keep me cool
in the back so I need it turning. Lots of good info from you guys. Now being an
old chopper pilot I wonder if I can get this thing to autorotate?
Cheers
Luis R ClaudioDallas, TexasKR2S
On Wednesday, June 14, 2017 9:10 AM, Flesner <fles...@frontier.com> wrote:
At 07:13 AM 6/14/2017, you wrote:
> I watched the EAA video on fuel flow test and
> was trying to find the BSFC or maximum fuel
> flow rate for the VW engine with a Posa
> carburetor. If I use the default of .55 in the
> formula, I get a fuel flow rate of 6.8 GPH
> which I know is excessive. From reading some of
> your pilot reports, IÂ am suspecting a fuel
> flow rate of about 3.5 GPH. I would appreciate
> some feedback on those familiar with the
> Revmaster 2100D. Thanks Luis R ClaudioDallas, TexasKR2S
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++===
Accepted practice is a flow rate one point five
times the maximum engine requirement in the worst
possible flight configuration, generally nose
high climb. You can't have too much fuel flow
capacity unless you are over powering your carb.
Another rule of thumb that works well on our type
of engine is that fuel burn will be 1/2 pound of
fuel per horsepower per hour. My 0-200 for
example at 65 percent power = 65/2 =32.5 pounds /
6 ppg = 5.41 gph, very close to actual.
Just remember, silence in flight is for sail planes...............
Larry Flesner
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