what size motor would give me longer run times?

[505b400]

i am looking for more run time out of my 550, i have the bigger of the gaui motors( i dont know what size i want to say 1400 or 1600, if that makes sense). i was thinking of trying to find the smaller one and try to run that one instead.

[Mikej]

It's not just down to size, for long run times efficiency is important and to give you as much flexibility as possible on teh gearing you want a motor with a KV around about 900 - 1000kV. Ideal choices are the Z-Power (tonic-X) Z20A 980kV or the Scorpion 3026 1000kV - these are both efficient (the Z20A is very efficient) and will give you lots of alternatives on gearing - if you go for a 1400kV motor you will need to go with a 60T main gear and a 13T pinion - I don't think that you will get a 1600kV motor to work with a decent set up

[masjo]

Motor, gear train and flight packs all play apart in flight times and efficiency. And again as mentioned many times.....more packs = more flight time.