Dear GTac02:

The PIPE here again...I've got a Four Star 60 kit MYSELF to kitbash into a CROPDUSTER this winter and Spring (own design fuselage with MOONEY style tail surfaces, for OS FS-90 REAR camshaft four stroke power)...and if you check out the Sullivan METAL CABLE pushrods available at http://www2.towerhobbies.com/cgi-bin...?&I=LXFU94&P=0 ...AND at http://www2.towerhobbies.com/cgi-bin...?&I=LXFU95&P=0 ...

...you'll find THE pushrods I always use for push-pull cable control on throttles!!!

I've used the ALL plastic ones before, but even from Sullivan, these DO have a shrinkage problem in colder weather (I LOVE flying off SKIS when it's snowed in the winter)...and the METAL CABLE pushrods from Sullivan totally eliminate that annoying thermal shrinkage problem that I've repeatedly had with the all-plastic ones.

To avoid metal-on-metal contact on the engine end of things, I usually try to use an OLDER style DuBro 2-56 thread ball link, like what you can find at http://www2.towerhobbies.com/cgi-bin...?&I=LXD897&P=7 (especially when the FACTORY SUPPLIED metal throttle arm MUST be used on one of my four stroke engines)...but IF I can replace the metal throttle arm with a HOMEMADE "flat plate" one, made from EPOXY fiberglass PC board substrate material, ANY metal clevis then can be used on the engine end!!!

Also, if the larger .056 inch (1.42 mm) diameter cable is needed to be used on cable control runs...on a plane that needs them for AERODYNAMIC control functions...REPLACING the stock "yellow spaghetti" tubing with FIBERGLASS tubing available from http://www.cstsales.com/FGMicroRods.htm ...it's the T612-4 item on that page, that I usually use...for a near-STRAIGHT-run from servo to control surface horn, gives the BEST results in my experience!

Hope these tips can help you decide what metal cable pushrod to use on your Four Star 60's throttle...should you choose to use one...

Yours Sincerely,

The PIPE!