Originally Posted by Hydro Junkie

When the guys race their electric 1/8 scale unlimited hydroplanes, they run 8S 6,000 mAH battery packs rated between 30 and 65C continuous discharge rates. They run the packs way down each heat and, due to pack costs, having enough to run up to 7 heats isn't an option. This would probably apply to any of the larger sized planes as well. Then again, they are only allowed to run NEU 1527 1.5Y 850KV, HET Typhoon 700-98 840KV and Turnigy SK3-3994 850KV motors matched with speed controllers rated for a minimum of 130 amps