Hey all

Im ready to put the control system into my 32.75" Hellcat and was hoping for some advice on which hardware to use for the linkages.
Seeing as im going for the full scale look I dont want any visible control parts if possible.

Ive picked up some JR ES316 servos which are tiny, not tiny enough though to allow a "servo in wing" type setup for the ailerons though so ive decided to use pushrods.
To avoid an extreme bend due to the narrow width of the wing I can only get about a 45 degree angle of pull onto the aileron, can that be made to work with a ball joint or something or will it cause problems?

Ive also wondering about the elevator setup.
The two elevators are linked together by a piece of 0.47 wire in this model, can I attach a control horn to this wire somehow or should I go for a y-cable setup?

I can post some pics soon if that is to unclear, my camera is out of action at present though. [:@]

Cheers
Ash

for your ailerons Id use torque rods and centrally locte your sero/s on the centre of your wing. for your elevatoe theres no reason I can see why you cant solder an arm to drop into fuse to attach a linkage to and keep it all inside. I have done that on elevators with a number of models including my first large (102'ws) laser. just make sure your soldering is up scratch

Scroll down to the "Tail" section of this review and look at how the elevators are hooked up.

(Click on the pictures to enlarge them)

http://www.rcuniverse.com/magazine/a...rticle_id=1061

Thanks guys.

I still dont understand the operation of torque rods, can anyone explain the setup for me or point me towards a diagram/picture?

Cheers
Ash

I'm sure Mike will come up with some computer drawings or maybe Ken will. On small planes like that you may want to use torque rods and bell cranks from U-controls so you can get a straight shot at the ailerons. The system is used a lot on the small HOB kits. I have some gear for hidden controls but it's all for giant scale stuff and I haven't seen any sized down for smaller scale. I really need lessons on doing computer drawings like Ken does but I'm puter stupid. Sorry.

If torque rods don't do it, you might want to take a look at this:

http://www.irfmachineworks.com/rds/

About the slickest thing I've come across for hiding linkages.