ORIGINAL: rctom


Yes they are overkill but not by a lot. They certainly won't hurt anything, and for $20 each over the 5985 ($36 over a 985) if you can afford them then use them.

I am using 985s which are plenty and the analog servos make it less significant if I have a slight linkage misalignment, which I do not, they are set up perfectly. The way to test this is as follows. Leave the screw that holds the ball link to the servo arm a little loose on 1 of the servos. Turn on the power so you can work the controls from the transmitter. The one that is loose should still be loose at center and at both end points. If it has bound up at any of these three points then your linkage needs to be adjusted.

Once you finish this test don't forget to retighten the screws.

Or 2 ea 985s, same power as 5985, cheaper, and more forgiving of a slight misalignment. Just use less expo to get the same feel as 5985.
Enough? probably so. Plenty? No.

Li-Ions through a regulator will never have the oomph of an A123 directly wired. What you have will fly the plane fine, but I'd bet you are losing a little servo performance at very high loads. In other words I'd bet it will snap differently with better power supply. Other than that what you have should work fine. Note "differently" does not always mean "better". It's possible to aggravate a problem of over-controlling by adding more power capability. Of course you can always back down from too much throw, it's always better to have the power available.

2x 36" for elevators


4x 24" 2 for outer ailerons and 2 for throttle/choke

2 x 12" for inner ailerons

2 x 12"Y connect to receiver to have a place to plug in ailerons

Your use of the power expander may change this.

TF