ORIGINAL: Kevin1963
I'm confused ... I'ved used 3004 Futaba servos on my trainer, my 4*60, and my WM T-34 ... no problems. I'm stepping up to a more aerobatic plane and I've heard that its a good idea to get a stronger servo for the elevator ... I was looking at the 3010. There is a warning regarding battery size and draw ... I'm lost ... I've always just used the regular Futaba NR4J Receiver NiCd Flat 4.8V 600mAh J battery ... do I need a different one? Should I use a different one?
I have no idea about different batteries, draws, and servo torque and I thought there might be others who could use a quick lesson from those of you who know. Anyone have time to give me a quick education?
By the way, I'm getting a WM Cap 232-46s ...
I've flown a 900 sq in 4 channel trainer using S3004 servos for several years on a standard 600mAH NiCD pack. I'd get about 4 flights before my voltage dropped down to where I decided to stop. Three years is about average for life of a pack so I replaced this with an 1100mAH NiCD. We recently put 8 flights in succession a few weeks ago.
Aerobatic planes with MORE servos (my H9 US40 has SEVEN servos) will deplete your capacity quicker. I am starting out with a NiMH pack rated at 1650mAH.
Unless you're flying BIG stuff I don't see a need for a more powerful servo than a standard sized one. You can always try 6 volt packs for more "ooomph" if you wish.