Hi Paul,

Awhile ago you were working on the Ford planet carrier and were removing
the cross pins that hold the planet-gear axle dowels in place. I
remember frustration was the order of the day. When you finally removed
them was there a method that worked best?  ; )    Thanx,  Dave

They are staked in there. You might try taking them to a shop
with EDM Electro Discharge Machining. They can drill them
out so to speak with out hurting the planet carrier or the
pinion shafts.

What ever you are doing sounds interesting. Designing a new
gear box perhaps? We need a better, lower weight design based
on the cheap Ford parts.

Paul Lamar ...No rotor no motor.

Last week I forwarded a portion of the above item to my son Roy in the hope
that it would catch his eye.
He might be interested in designing a new gear box if nobody else is.  He
sent me the following questions:
What planetary gear set is used in the gear box? I understand that it is a
Ford gear but what transmission and the forward or aft set.

Roy is a super techie. He is presently employed as a mfg. engineer. Before
that he was an aeronautical engineer for Midwest Airlines. While at Midwest
he wrote the book on weight and balance for their aircraft, including the
MD80. He has been a chief inspector, A&P, IA, etc. etc. His idea of
recreation is to read the tech manual for the 747, which he did while with
TWA. He is fluent in Solid Works and has access to FEA.

Doc Custer
Retired Software Engineer and sometime Audiologist

Excellent. The right man for the job
Ford  E4OD or A4OD Doc. You can buy parts for them from:
http://www.slauson.com/ Order a catalog.

2.85:1 or 3.17:1 for large dia. prop the heavy airplanes
such as sea planes. Ken is building a 3.17 as I recall for his Coot.

I recommend taking the simple, low tech, low tech risk, Lycoming
approach as we sorely need low cost hydraulic var. pitch prop
capabilities. High pressure oil is fed from a gov. into the Lyc
front main bearing then into the hollow prop shaft to control the prop
pitch. Works well on 100,000 airplanes. There is 600 ft pounds of
bending load on the prop shaft when the airplanes stalls.

Give him my email address if he wishes to discuss it with
me.

The last pic is the far out super light weight high tech risk
PSRU :)

Paul Lamar ...No rotor no motor.

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