"Ron Wanttaja" wrote

If I dismember correctly, the fundamental problem was that the A-75 just
didn't
have enough oooompppph for the draggy Taube. Can't remember if the
Continental
just overheated or if someone mushed it into the corn.

In either case, he swapped it for a VW with the Valley Engineering PSRU
and is
now turning a 96 inch diameter prop with 60 inches of pitch. He claims it
provides 70% more thrust than the old engine. Hmmm, lengthen the gear
legs on
the Fly Baby.... :-)

Wow! It is hard for me to get my brain wrapped around the fact that a VW
could be stronger than an A-75, even with a redrive!

I always heard that a VW was only good for around 40 horsies for extended
periods of time. Can't a 75 in good condition beat that? It would make
more sense to add a redrive to the 75, than go down to the VW.

Has it ever become common practice to put redrives on pancake engines?
(other than the 470 geared from the factory, and it's ilk) I don't ever
recall seeing one with a redrive, or hearing about one.

What is the displacement of the A-75, anyway? If you don't know off the top
of your head, just say so, and I'll go a-googlin'! g
--
Jim in NC