UL-1 nose diving on take off

[rawpwr]

Try hand launching the boat. The forward motion will be easier on the boat and prop when getting it on plane. BTW is your prop sharpened and balanced? You will notice a big difference in speed with the grim metal prop \m/

it's a stock plastic prop. what size is the stock prop? I have tried hand launching

[FEJohn]

Hit the throttle quickly and let off......It will dive, then bob up....when it bobs up, nail the throttle full....it will take off

Do what ncornacchi says it will take some throttle work at first but after awhile and some tuning it will get easier. BTW I'm not to sure what the stock prop size is. Good luck. Don't sell it is an AWESOME RTR boat