Fishgod123

Can anyone give me an idea of what kind of flight time you can expect with a small battery for a sloap soarer? I'd be looking at 3 small servos and a receiver. Just trying to see how big of a battery I'd need. I'm thinking like 150-600mah 2s and hoping for something around an hour

BMatthews

In slope soaring in medium to higher winds where you'll likely be doing aerobatics where the servos are moving more often than they are still you'll use up power a lot faster you'll want higher capacity cells. If you're looking at around 2 hrs of air time per day I'd go with something up around 850 to 1000mah to be sure you don't run low. And even a little more would not be out of the question if the servos are digital which tend to use more power for the same movement.

rexmexx

Have you thought about LiIon packs? One cell is 18mm in diameter and there’s a few ready to use packs to buy in the shops.
I have a plane the same size and after flying for 1.5 hours on the slope including lots of aerobatics, I’ll top up around 600mAh.
Depends of course in the size of servos and how smooth the linkages are.