Hi,

Both alternatives are well used ... I have tried many different set-ups, and they all worked ok ..

If you have a transmitter that can deal with the dual servo set-up, it is for sure a good method. Many of todays modern transmitters has a pre set program for dual elevators that can deal with the set-up and the adjustments. Some years ago, without this dedicated program, it was a bit different , and it could be hard to get it right ...

One of the most important advantages using one servo set-up, is the lower weight-moment ...
A way to understand this phenomen :

Let`s say i put 1kg of weight into each wing-tip of my pattern model ; the model would still balance in the roll axe, but what about the effect of the weight-moment , like stopping a point-roll , snap-roll or a spin ? Those manouvers`s would possibly continue a great way after i commanded it to stop ...

If i put some weight into the tail, the same thing would happen. The added weight has to be compensated somehow to get the CG right(directly or indirectly),then i have done the same thing as to the wing-tips ; increased the weight-moment that will make my model harder to accelerate/deaccelrate and stop into new positions, like snap-rolls , spins ... ..

The ideal thing for a model would then be to consentrate all the weight into the CG point, but since this would be impossible, it has to be some compromises ... The "one-servo-users" use this method to minimize this effect ...


Hmmm ... just a thought ...

Kjell Olav