Hate to do this but up for sale is a rare Hirtenberger 40R-PR pylon engine . This engine dates back to 1973 and was made in Austria. It is new and never been mounted or run. The box is in pretty good shape but not perfect and includes the paperwork. The foam is not there because the foam they used doesnt last forever.

Here is a little history on this little beauty.

The HP 40 R-PR, designed by Peter Billes and built since 1972 by Hirtenberger in Austria, was one of the first engines developed especially for pylon racing. Its sophisticated Schnuerle porting system was responsible for the remarkable power output of 0.89 kW at 21000 rpm. Thus it was able to surpass the K&B Torpedo models 70 and 71. The rear rotary disk intake system avoided lengthy gas passages and reduced the crankcase volume. But it still featured a ringed piston, which prohibited the use of wide port openings in the cylinder sleeve.

This was found at http://www.mh-aerotools.de/airfoils/...F3DEngineHP40P

I will sell this engine for $170 plus shipping. Great engine to ad to your collection.

A screamer...... not to mention cooool!

Bill