X-Mozilla-Keys:                                                                                 
Bill Freeman wrote:

John Bullens wrote:

That's the main reason (money) I like George's unit.  If I build it, surely
I can fix it.  Now if we can figure out a good supply of cheap
tranny's and get the prop flanges machined cheaply,, any ideas??

I think a chip detector should be a must in any PSRU. A magnetic plug
(minimum), at the lowest place or electric chip detector and if second gear
starts shedding metal then hey,, get out the tool box and replace it.  A off
the shelf gear set and a gasket seems cheaper than sending a unit back to
who ever built it.  So what if it only goes 400 or 500 hrs.  that's a lot of
flying.

JB.

You are assuming that the failure mode is graceful.  If it slowly deteriorates,
then perhaps you are right, altho the bearings will need replacing, too if you
feed any significant metal particles thru them.

If the failure is catastrophic, it could be a different story.  Ya'll be
careful out
there.

Bill

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