marc wiese wrote:

How about a review of this design, Paul? Perhaps they would be interested
in a conversion to the Mazda using a straight thrust line and 3.x gear
reduction?
http://www.epi-eng.com/PSRU_Specs.htm

It obviously works as there are quite a few Engineair V8 conversions
flying. Ideal for an upright V8 as the six or so inches offset puts
the prop up near the top of the engine. For a rotary it would waste
a lot of valuable space in the cowl. Also it is quite heavy
at around 73 pounds. There is no beating a planetary in torque
capacity to weight ratio. 

One nice feature is the separate gear box oil pump. Several 
rotary engines have failed after a Ross
gear box has come apart due to gear box metal particles
contaminating the engine oil supply. It happened to Ken Welter
at least once. Ken suggest a screen filter from a motor cycle 
engine to filter the oil from the gear box before it flows back 
into the engine sump. He told me what kind to use but I forgot 
the name. Ken? Help :-)

I would also devise a metal particle detector on the oil drain
plug wired to a light on the instrument panel.

Paul Lamar
 
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