Chris, I did mine that way with 1/2" x .035 thickness 4130 tube going from the stick out to a crank in the wing gap then another back to the aileron attach bracket. There are 1/2" steel (wouldn't use aluminium for these) rod ends with 1/4" threads on them (AN490HT-8P) that are pushed into the ends of the tube and gas welded in place. The rod end bearings (F34-14) then screw onto the threads. I used Heim or Fafnel bearings with AN3 bolts to to suit thru the eyes. 5/8" tube takes the -10P ends and F35-14 bearings. I used this for the elevator rod and supported it mid length. These bits are all in the ASS catalog but you could probably get them locally via Aviaquip and save on the killer freight from the USA. Just explain what you want and let them check it all fits together before dispatch. Don't forget to allow for the length of the rod ends before you cut your tube.
John Martindale 29 Jane Circuit TOORMINA NSW 2452 AUSTRALIA phone: 61 2 66584767 (H) 61 2 66869094 (W) mobile: 0417 584767 email: johnja...@optusnet.com.au web: www.members.optusnet.com.au/johnjanet/Martindale.htm ----- Original Message ----- From: "Chris Johnston" <chr...@ozdocs.net.au> To: "KRnet" <kr...@mylist.net> Sent: Thursday, October 05, 2006 10:28 AM Subject: KR> control rods > I need to make up some control rods and need some advice. ........