what size of prop shold i use??
drexxx369,
Some have used a 15x4W, but it was too much prop for mine. IMHO a APC 14x4W on 30% Heli fuel is the hot setup. My theory is to use 20% for longer engine life. It provides about 500 rpm less than the 30% though.
what size fuel tank should i put cause i got a 11 oz with the box and that i think is like 8 minutes of flying
I don't know about specific tank options. I've found that after 8 minutes of flying the X50 the way it's designed to fly, I'm tired and ready for a break so I never bothered switching it out.
Phillip