I have a TY 901 medel rc helicopter. it flys, but then suddenly stops, as though it lost radio signal. the battery is fully charged, and the batteries in the remote are new, so i dont understand why it would suddenly stop. i have to turn it of and on several times and then it works again for about 2 mins and does the same thing again. i don't know how to fix this.

SOURCE: Building a RC helicopter for college

You might want to get on google and search how to build Remote Control Helicopter. you will find a lot of useful info. If you have never flown a RC heli thought I suggest you get a sim for the computer. I have been flying now for 10 years and they are not that easy to fly. I still have problems and always am learning some thing new. here is one link to look at.

http://www.angelfire.com/blues/heli_project/

SOURCE: my rc helicopter can not fly it spin in floor

Hi
This type of helicopter uses a fixed pitch blade. Have you recently replaced one or all the blades? If the blades are correctly positioned then once the motor comes to speed, the pitch of the blade creates enough lift to overcome the force of gravity. The problem you're having can only be that the motor is not coming to speed or the blades have been replaced but the pitch is now at the wrong angle.

SOURCE: find charger for world tech rc helicopter skyhawk

good day,
hope this link below will help tp solve your problem.

toys

SOURCE: hello i have rc helicopter

depening on the size of the copter if it is a motorized one then you need to check the pitch of the main rotors and check that the collective is working in conjunction with the increase of revs from the motor ie more revs = more lift
the amount of pitch required should be in the setting up instructions
hope this helps