OK, first off I did a search because I figured this as been asked 1,000 times, but I couldnt find anything helpful. I'm sure it has been posted before so feel free to link me to that.
I am almost done with my Tower Trainer 40MKII and I just got another bag of goodies from Tower Hobbies, that includes an AccuThrow and CG Machine from Great Planes. So I put the AccuThrow on the controls and they are all way off. It says the Elev. should move 9.5mm for the low rate. Well mine moves like 25mm. Same for the rudder & Aler. I thought I knew how to adjust for this but I guess not. I tried to move the point that attaches to the horn but no luck. Then I tried to move the servo horn but no luck on that either. I do not have a computer radio so I can not adjust the travel that way and even if I did I know that would be the last resort.
Thanks in advance for the help.

ok - you can make 2 different adjustemnts independently or together.

If you leave the servo arm alone, and move the pushrod away from the control surface (towards the tip of the control horn) you should be decreasing the amount of available travel. Closer to the base of the control horn should increase travel.

Conversely, if you leave the pushrod alone at the control surface, and were to move the rod further away from the center of the servo arm @ the servo, you should increase your travel at the control surface, moving the pushrod closer in on the arm would decrease it.

Given those basics - you could maximize your throws by moving the rod outward on the servo arm, and closer to the base of the control horn on your aileron/elevator/rudder. You would get the least movement by having the rod closest to the servo, and farthest away from the base of the control horn.

If you have made those adjustments, and still are getting too much throw, then there's not much more you can do since you stated you don't have a Computer Radio. (Unless your radio has endpoint adjustments on it that you can adjust manually) Now - this is the part where it really helps to have a seasoned pilot helping you with your first flights, and getting you in the air - if you fly really light on the sticks, you woulnt have a problem. Banging the sticks around isn't how you fly a plane like the Tower 40 - or most others for that matter. You usually move the sticks very little to make it move aroun the sky, so if full back on your elevator stick moves your elevator more than recommended, it just means you need to realize that you need to not give it full up for low-rate type of flying.

Also a quarter inch deflection up and down on that plane should be fine on elevator for low rates in my opinion. If you don't have dual rates on your radio (I'm assuming you're onone of the Tower/Futaba basic 4 channel radios) - then you would be wise to dial in a little more throw than the low rate suggestion, and learn to use less stick - that way you have the ability to use the extra throw to get you out of situations where more control input is nescessary. (stalls, wind gusts on final, evasive maneuvers to avoid hitting other planes or stationary objects.)



Have a seasoned pilot fly the plane for the first time - he/she should quickly be able to tell you if the plane is going to be too "hot" to train you on.

One other point; before installing the servo arms on the servo, make sure the servo is at neutral (stick and trims centered). This is accomplished by powering the transmitter and receiver with the servos connected to the receiver. Afterward, place the servo arms 90 degrees from the servo, unless differential is needed. This method results in equal servo movement in each direction. Bear in mind, this setup is for control surfaces only, the servo arm for the throttle servo is typically setup with the throttle stick at one end (or the other), that is throttle fully opened or throttle fully closed.

DaveB

Certainly for Futaba servos, if the arm does not seem to be completely square with the servo body, rotate it around to the next arm, and the next, and so on, as they are designed to be at slightly different offsets from neutral.

Thanks for all the help guys. I was able to get them all adjusted. Got them all pertty close so I think I'll be ok until my first flight when I have a pro trim it out for me.