Ramon Collado. wrote:

Hello Paul,  I started working on the prop hub. I have not forgot to take
pictures of it as it goes.  I will send them as soon a I get them ready.  I
have also having hard times trying to get those torlons balls up here.  I
am still waiting for news from a dealer.  Have you got an address where I
could buy them, faster ????      Do you have an address for the pitch
change motor, where I would get it ????  another question is, have you got
the SAE #1 flange holes pattern ????  Is it the same pattern as used by
Ross PRSU ???????............and one last question,  have you figured out a
system to connect the picth motor wires to a switch ??????  I do appreciate
your help.  Thanks much.

Ramon

Where are you Ramon? West Marine, a chain store here in CA, has those
Harken Torlon  balls. 

http://www.harken.com/

http://www.noaa.com/rosecranswm.html

West Marine, Inc.
Address:      500 Westridge Drive
               Watsonville, CA 95076
         Phone:  (831) 728-2700
           Fax:  (831) 728-2736

Torlon is made by Amoco. Contact them to see if anyone
other than Harken are making ball bearings out of it now.
Last time I checked it was just Harken.

http://www.amocochemicals.com

Pitch change motors:
http://www.globe-motors.com/
http://www.pittmannet.com/

The hole pattern is the same as the Ross. 

The slip rings are the same as Ivo uses. A couple of 
1/4" thick aluminum disks sandwiched between 1/16 inch thick 
epoxy fiberglass printed circuit board laminate and the 
prop flange and prop. You will need plastic sleaves to 
insulate the prop mounting bolts. Nylon or teflon should
work well.

Let me know if you need a sketch on this.

Brushes are obtainable in any hardware store. So you need to
design a nylon brush holder. I will take a look next time I go to
the hardware store and make a sketch.

Other questions answered soon.
 
Paul Lamar
 
The Aircraft Rotary Engine Newsletter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org