How much would a single rotor aviation engine weigh?

  Matt

  165 pounds  125 HP no PSRU... cast iron end housings.
  110 pounds  125 HP no PSRU... aluminum end housings.
  PSRU is 30 to 40 pounds.
  No cooling system.

  Paul Lamar

 Can you put me on your newsletter list?

 What do the aluminum end housings cost? How fast would a
 single spin for 125hp?

 Where does one get or make the reductions?
 What did the setup in the picture weigh?
 http://www.rotaryeng.net/PY1rot1.jpg
 Has anyone used one of the russian  SPG-2 gearboxes?
 http://www.airtrikes.net/engines.shtml

 What do the aluminum end housings cost? How fast would a single spin fro
 125hp?

 Can you put me on your newsletter list?

 Matt Naiva
 Wauwatosa WI

 You are on.

 Racing Beat aluminum end housings are about $1500 each.
 http://www.racingbeat.com/

 The p-port one rotor engines are rated at 7500 RPM for 125 HP.
 The red line in the RX8 street car is 9000 RPM so 7500 RPM is
 loafing. We don't run them at that for AC use as the common
 Tracy Crook PSRU ratio is only 2.85:1. Belt drives and custom
 PSRU's built with the Ford gear set could go to 3.12:1 with
 the prop rotating in the wrong direction.

 Contact Daryl Drummond for a one rotor e-shaft or complete engines.
 http://web.mac.com/emmanuelmunoz/drummond/About_Me.html
 daryl@drummondengines.com

 http://www.rotaryeng.net/PY1rot1.jpg
 Pretty close to 200 pounds as it uses a light
 weight die cast bell housing, cast iron end housings  and and old
 relatively light weight hollow shaft 30 pound Ross PSRU.
 Contact http://www.rotaryaviation.com/


 Paul  Lamar

Paul this is great info. Do you think the cast iron ends could have
some iron machined out for a compromise weight?  Would it be possible
to use only one aluminum end to gain half the weight savings?

What would a little turbo do fir it? Climb to altitude record?

I am considering it for a littlewing LW-4 tractor gyro.

Matt

You won't get much weight out by doing that.
If you have NC machining capabilities one of the
best ways is make the 1 rotor end housings in two pieces
as Richard Sohn has done.

Richard Sohn <res12@fairpoint.net

BTW Richard you need a web site :)

Paul Lamar