Subject: Eggenfellner Aircraft
From: Paul
Date: 2/6/2000, 7:49 AM

Archie wrote:

Just spoke to Jan, and he forwarded the website for
additional info on his gearbox.
Archie



OK this is not a very good picture but the output  shaft diameter is as I first
suspected.
It looks kind of marginal. I was hoping that he had extended the flange shank back
inside
the gear box to act as the output shaft, accept some really large bearings 
and take the gyro bending and thrust loads. The existing small diameter shaft would 
then only have to deal with the torque loads. The present shaft looks somewhere
between
one inch  and one and a quarter inch in diameter. What is needed for a prop output
shaft
diameter  is something in the range of 1-3/4 inches to two inches.
Again the strength of a shaft  is proportional to the cube of the diameter.

With this kind of change it should become a bullet proof PSRU.
The gears, large as they are, I suspect, are still not as strong as the Ford
C6 planetary.

Paul Lamar
 
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Aircraft Engine for the Subaru Glastar Airplane. Eggenfellner Aircraft


















  
  
    
    
  
  
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Aircraft engine for Subaru's experimental Glastar Airplane. Building an experimental aircraft is a tremendous challenge. Imagine the convenience of purchasing an engine that simply bolts in & hooks up.
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Aircraft engine for Subaru's experimental Glastar Airplane. Building an experimental aircraft is a tremendous challenge. Imagine the convenience of purchasing an engine that simply bolts in & hooks up.

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Eggenfellner-parts.jpg