DENIS SMITH wrote:

Gents,  I am working with Alturdyne to build up a 20B
three rotor for an aircraft application and am casting
about for a PSRU  (2 to 1 to 2.5 to 1). Do any of you
have any contacts in New Zealand that might have
access to a Cozmo transmission?  I have heard of a
gent that is using a cut down version of the RX7 (2nd
gear, 2.1to1) with great success in a 13B set up.
Denis Smith    -- Paul <rotaryeng@earthlink.net>
wrote:

The output shaft will never live. The output shaft is not designed
for the bending loads typically found in a propellor shaft.
Check out a Czech PT6 turbo prop gear box. Paul Lamar

Wrathall Mark wrote:

I got this answer from Walter about purchasing a used M601 Gearbox for
a high performance offroad vehicle:

thank you for your interesting in WALTER products.
I think it will be possible to find something for you, I can offer you M601B
reducer in good status (stored after the 1st overhaul, but not airwothy
becase of calender limit overflown) for 1750,- USD.
Beside this, I can offer you also some manuals and/or documentation or other
technical help.
Best regards
Michal Ptacnik
Marketing Manager

WALTER a.s.
Jinonická 329
158 01 Praha 5
Czech Republic

Phone: +420 2 5104 2510
Fax:    +420 2 526060
Internet:    http//www.walter.cz

Great work Mark. A  PT6  clone gear box for $1750! Looks good for
an unlimited turbo three rotor  winner. ( I think Jim Mederer of Racing
Beat  might have over 50 dyno hours on the 900 HP turbo 20B by now).
Now all we need is an airplane. I am tempted to send a check even
tho I am not planning a Reno racer turbo three rotor airplane.
Paul Lamar

 
The Aircraft Rotary Engine Newsletter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org