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General control line discussion => Open Forum => Topic started by: W.D. Roland on August 11, 2006, 11:48:16 AM

Title: problem with s.t to fox
Post by: W.D. Roland on August 11, 2006, 11:48:16 AM

this may be a dumb question but needs solving before new stunter can fly.

the airplane was built to use a s.t. .35 stunt with a fox prop shaft extension and a fox aluminum spinner.
problem is that the s.t. threads are m.m. and extension nut is sae.

anyone know where i can find a adapter nut that is proper m.m. thread on engine end and sae on spiner end?

Thanks
  David

Title: Re: problem with s.t to fox
Post by: EddyR on August 11, 2006, 12:27:31 PM

All my ST motors incliding my .35 are SAE

Ed

Title: Re: problem with s.t to fox
Post by: peabody on August 11, 2006, 12:39:35 PM

Randy Smith would be my choice...

Title: Re: problem with s.t to fox
Post by: Bob Reeves on August 11, 2006, 02:56:16 PM

I have several ST 35's and 46's, they are all 1/4 28.. You sure the shaft isn't buggered up or maybe your prop extension is the wrong thread.

Title: Re: problem with s.t to fox
Post by: W.D. Roland on August 12, 2006, 12:57:02 AM

thanks guys! for making me go pay atention and check things.
it realy baffeled me when first trying to fit it up as i never had problems that i remembered.
find that 30 year old memories cant be depended on.

what i found--dug out a few foxes k&b o.s. & s.t.

extension nut fit all but s.t.!  n~

stock nuts fit all engines  n~ n~

measured all shaft threads and all are 1/4-20!  n~ n~ n~
 
ran a tap through extension and it removed enough metal to have been cutting threads in a blank hole!(tap drill size )  %^

now it fits all engines!  #^

agin--thanks and ill try to pay attention next time !  :!

David

Title: Re: problem with s.t to fox
Post by: W.D. Roland on August 12, 2006, 12:59:34 AM

that should read 1/4-28  :P