Guy

You dun use one battery on a multi-engine machine.
of cuz you have no flying time

you should have one battery and one ESC for each motor
same spec battery for same kind of motors too and than a smaller battery for the RX

saotome

What you have said is true in ideal conditions.
Don't forget that extra battery has the same effect as using a larger battery - weight penalty. So far I have not seen any mainstream EDF jets in the 2-3' wingspan that carry multiple battery packs.

FYI I don't use a separate Rx battery, instead I use an UBEC so that I don't rely on the BEC on the ESC. Rx battery only make sense for larger models, such has 6' wingspan and up.

Sir, could you post some pics of your masterpieces so we can all learn from your techniques?

Guy

EDF jets in the 2-3' wingspan????? isn't that  has a formula on wingspan and payload?

I tried to send some pic and technique to you remember?

FYI...i don't build planes any more... i am build quadcopters and flying electronics for drones
I have problems flying and routing on the ground(tunnel vision).  you fly better than i do..


So I let the computer to do the handling and controlling