Royce Wise wrote:

Well, I rough cut my first single rotor e-shaft..
Easy to see why that shaft is so reliable.
It is made of a very dense close grained steel.
I knew there was a lot of metal to be removed.  Didn't realize the

extent of that

though.  Took a while to cut it all off.

Now it just needs to be finish ground and heat treated.
Frank had noted that there was not enough material left to make

the front main

journal without adding an inner bearing race.  This shaft seems to

have about 1/16

inch over the journal diameter for the front bearing.
Will grind to the final size on a crank grinder, and see, but I

think that it will

do just fine.  Get that journal induction heatreated, and I should

have a fine

shaft.

It is a 13B shaft.  Using 12A rotor and rotor housing, with

aluminum side

housings.  The 13B shaft was chosen because it already has

lightening holes in the

ecentric, and lots of metal has to be cut off anyway..
Royce

Congratulations, Royce. What do you charge to do e-shafts for us

other

6.5ers ? (:>}

Fred O.

Fred we have to get this jewel up and running to prove the concept.

After that point

we'll see if we want to do that or not.
The biggest item on the ticket is the side  housings. Once they are

produced and workable

the e-shaft won't be a big deal.
Royce

Case Sinclair wrote:

Hi all,
Dont the 13B's have wider rotor bearings, thus making the 13B Eccentric
shaft unusable with a 12 A rotor?

Case

 
The AirCraft Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2002 All world wide rights reserved.