OS FS40 12V Generator - yet another test 

i fitted the even bigger KD 63-24L motor from hobbyking. at full throttle it produces almost 60V at no load! too much for the system. but that means i can easily get 24V at almost idle. next problem is the FS40 is too small - produces close to no power at low rpm. therefore the next modification will be a FS 91 or something like it.
this was a cold start - as u can see not using the finger-choke-technique it woudn't start.
at full throttle and higher rpm i get around 130W now from the system.
if the fs40 produces lets say 400W at the crank - that makes around 30% efficiency on the generator part - not very impressive.