ORIGINAL: ovationdave
ORIGINAL: Ilikebipes
ORIGINAL: WhiteRook
A servo for each a ron is a bit heaver , but a lot less slop, A LOT.
This is simply not true when installed properly.
And... nobody is
required to approach an aileron install in any other manner than safely. Belcranks work just fine, and without slop. So does the aileron rod method. Both of these can use 2 servos as well, btw, and you don't have to add extra weight outboard in the wing. From this knowledge, belcranks and aileron rods make more sense, actually.
Brian
I would have to agree that a bellcrank can be set up to be very efficient. I had one in a Don Muddiman ''Flying Machine'' and used a single servo with a ''line drive'' servo horn that was sweet. It worked really well, and doesn't move the aileron torque rod up or down with the rotation of the servo horn. I have also used single servo method many times with good results. But as many others have mentioned, I think the dual-servo option is the best for flexability, ease of installation, almost idiot-proof slop reduction, and overall is just the best option available in my opinion. And redundancy is a good thing, I know I had no problem landing my giant super sportster when one aileron horn broke last year. With one aileron working, I hardly noticed (except for the aileron flutter on one side!) But when you get down to it, they all work, and can all work perfectly fine for a plane like the chipmunk.
Dave
Yes, a bellcrank can be setup to work just perfect with no problems if you are willing to really go the distance, but why in the world would you do this on an aerobatic aircraft when you can go direct link to a number of fantastic servos and linkages available today. OK, so this kit was designed for a single servo on the ailerons, old school and it worked alright with those old servos and those old engines from the past... Today we all have the option to make thing work fantastic with the available electronics, power plants, and all the gadgets to go with everything. I have also been building and flying for over 40 years, so I remember all those kits and yes, I miss them, but the engines and am radios... I am happy to say they are gone!!! Yes, they got us were we are today, but it really is long past time to move forward. Personally I like changes for the better.
Bob