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It sounds like you need a more pitch on the prop.
in article %33bf.5271$lb7.60762@news1.mts.net, Heino & Deanne Weisberg at
weisberg@mts.net wrote on 11/5/05 9:08 AM:
> I've a Stitts SA-3A playboy I picked up recently. It has an A-75
> Continental and a 67" Fottorp prop with a 47 pitch. The plans indicate this
> machine should fly around 120 mph with this engine; no mention of prop. A
> previous owner I spoke to said it cruised around 118mph for him. For me, it
> cruises around 95mph; I verified this with GPS. On run-up, I get about 2250
> max RPM. On take-off it easily red-lines, suggesting to me the prop isn't
> a good match, but then I know next to nothing about this. It flies
> beautifully, feels very well rigged. I won't pretend I know what the
> problem could be; but I do know it is flying a lot slower than it should.
> Any suggestions would be greatly appreciated!!
> Thank you
> Heino
>
>
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Re: why so slow??!!
