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I usually cruise at 160 mph TAS burning
6 to 7 GPH depending on altitude. Maybe 6.5 at 8000'.
I'd have to look closer next time I fly.
I'll have to take it to top speed again, because I don't remember
the numbers, but I don't think I've ever seen 200 mph except with
heavy tail wind. Then again, the prop has been shortened after
Richard did a wheel landing on a hard surface, so I doubt it's
optimized for top speed.
I regularly do see 2,500 fpm or more after take off, even though
it's built too heavy (electric water pump, SS hoses, brackets,
etc. that could be lighted). Still haven't gotten up the courage
to do a loop because it's over gross aerobatic weight even with 5
gals of fuel.
Finn
On 1/26/2017 1:27 PM, Doug Lomheim wrote:
Finn:
Can you post some
performance numbers from your RV-3?
I restored a “3A” w/O-290”G”
(alternative engine :) ); and I flew it for a year while
putting 50 hrs. on it. I routinely would cruise it at
2300-2350 rpm which equated to about 140-145 mph, and when
leaned out the fuel burn would avg. 4.9-5.1 GPH, and it topped
out at about 185 “mph" at 2,800 rpm.
I’m curious how yours
performs w/ the 13B; and I imagine it will be much closer in
performance to an O-320…
Thanks for any info.
Doug
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