Subject: Curtiss Wright rotary
From: ACRE
Date: 10/19/2004, 3:23 PM
CC: YouCanHelp@nasm.si.edu


Some of you that fail to read all messages noticed that I have been gone
for the last few days :) The newsletter shuts down when I am gone.

I was in DC for a wedding and I found time to visit the new Smithsonian
Air and Space museum annex at Dulles airport. Therein was/is this CW
Wright
rotary aircraft engine.  Typically the spec info card is all wrong.

Not much new in the museum. Seems the Smithsonian is a day late obtaining
all the really interesting aircraft of the world. There are one or two
unique airplanes but most of what is in there is also in another half
dozen
museums around the world. I was disappointed that they did not have a
R3350 TC
which happens to be one of the most significant piston engines ever.


The engine display needs redoing placing all the engines in a line so one
can see
both front and back up close (and take better pictures).

Paul Lamar


Paul,
What a great little engine - excellent power to weight ratio, and at 5,000
RPM.

I also like the housings with integral engine mounts, I was wondering how
that could be done. Do you see any short falls with that mounting
arrangements?

Now why doesn't someone buy that design rights and tooling - unless there's
something wrong with it.
George ( down under)

The mounting is fine and it appears to be interchangeable with a Continental
bed mount.

Take the data with a grain of salt. The engine is not 60 cubic inches.
That was the displacement of only one rotor. It did generate 180 HP
and not 250 HP at 5000 RPM. Best BSFC was slightly less than .5 at 
90 HP and 3500 RPM.

Paul Lamar
 
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