Fred Osborn wrote:

I ask because I have made an e-shaft for a

single

rotor by machining a

shrink fit joint near the location of this

break.

I would not fly that

shaft but I badly want to get a test engine

running and have not been

able to find any source for a single rotor

e-shaft. My test shaft

depends on the torque load at that break point

being quite low. If

that is not a reasonable assumption then I am

stuck until someone

can/will supply a one-piece single rotor shaft,

Fred O.

snips...


Richard wrote:

My 2c worth.

Here is a picture of the e-shaft I am using in the single rotor. It has run
about 5hrs so far. It has a 30mm taper for Rotax/Hirth interface.
This design does not need rehardening and grinding, it uses an inner race of
a needle bearing the same size as a Mazda bearing.
Richard Sohn
N-2071U
unicorn@gdsys.net
www.gdsys.net/WWWmembers/unicorn/

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