RE: Hangar 9 F4U Corsair
Yes, I used 3-cell Kokam packs in a 6s4p configuration. It works great with a flight time around 10 minutes.
You can also use two of the 3s2p ThunderPower 4200 packs in series. This has worked well for me with an AXI 4130/16 motor.
Next season, I may increase my pack capacity by using a 6s5p configuration of Kokam 1500mAh cells. The H9 Corsair flies light much like an overgroan parkflyer so the extra weight won't matter much.
Kokam will also be coming out with 3.2AH packs this Winter in configurations up to 6s3p for a 9.8AH capacity at 180amp delivery rate.