Peter Cowan/Lexi Cameron wrote:
Here is one more for the list. It is a Bakeng Duce (I don't know how to
spell it or pronounce it, a 1285 lb parasol Cessna 150 wing dual open
cockpit) with an early 6 port 13b, Racing Beat intake manifold to Delortto
carbs, distributor ignition, RB exhaust to a couple of cannister mufflers
(but still way too loud, hence my last questions on noise measurements) 74"
metal prop on a mazda truck transmission. The project was started over 10
years ago and has been flying for a couple of years near Montreal but only
has 30 hours on it.
This is my first experience with an open cockpit airplane. In freezing
temps on the 4 hour flight home it was pure torture even with a snowmobile
suit, helmet and gloves. Engine cooling was not a factor. Pilot heating was.
With a 35 knot head wind, transport trucks were passing me. At 4500 rpm it
indicates about 85mph.
Living in southern Canada I agree that this is not the most practical
machine to buy in October but it is going to really speed up my production
of the optimum rotary for me. My primary reason for acquiring it is to use
it as a test bed for noise reduction, prop sizing, packaging issues etc. I'm
60 and I don't want to be out of license before I have a flying rotary.
Will get some pictures within a week or so (My digital camera quit).
Peter.
Wow Peter you are pretty brave flying an unknown rotary powered airplane
four hours over
the Canadian bush :-)
Did you do a compression test before you took off? A cold pressure test of
the cooling system? That Mazda truck transmission sounds dangerous
particularly
with a metal prop. What diameter is the prop shaft coming out of the truck
transmission? I suggest getting a Ross or one of Tracy's gear boxes as
soon
as possible. Lacking that please magnaflux the output shaft if that
service is
available near where you are. If you fly it again don't do any violent
maneuvers and that includes stalls. Turbulence is also hard on prop
shafts.
Paul Lamar
I visited and examined a Mazda Wankel about 11-12 years ago when I became
interested in the Wankel engine for my Zenith. The engine was installed on a
tail dragger fuselage I do not remember the address but it was in a
basement in a house in northern Montréal. I remember the PSRU, as being
really very small. I do not remember a propeller. Yvon.
How fast would you have to drive a ground vehicle to average 85 mph on our
roads.? Yvon.
What was the propeller rpm at 4500 engine rpm? What is the PSRU ratio? Yvon.
YOU ALREADY HAVE A FLYING ROTARY! PETER. Yvon.
I would first suggest a wood propeller. Mine is 74'' x 50 Québec maple and
has been going for 10 years. Yvon.
Come on Paul, do you not remember? Southern Canada is NOT all bush..Yvon
Driving from Ottawa to North Bay it sure seems like it :-)
To me that is Southern Canada. Yellowknife (been there) is the middle of Canada and
Alert and Inuvik(sp?) are in the North. Not been there yet.
Paul Lamar
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