i just got a hummingbird second hand, and ive got a couple problem. when i power up, the heli starts spinning clockwise at moderate pace on the floor, then if i do get it powered up and not really spinning, i try to take off and it vibrates then tips over. what can i do to solve these problems?

First question is- are you new to heli's? If so, get the $10 training gear. It helps a lot with the tip crashes. The spinning problem sounds like its your gyro. Which one do you have? Is it the century or the GWS? If its the gws(don't know about the century) when you plug the battery in, let it sit for 3 seconds to initialize. The gain should be dead smack in the middle for starters. Also make sure the red and green light on the front are lit simultaneously when it is sitting still. If it favors a red or a green, then it will give bad directional control.(Garbage in, garbage out theory) Use the set screw to adjust it to show both colors.
Finally, with the vibration, make sure your main rotor blades are 90 degrees to the flybar, and the paddles at the end of those flybars are level with the swashplate. Verify your landing gear and battery are secure as they can cause vibration if loose.
Hope this helps


Here's a link the the Hummingbird Manual
http://www.centuryheli.com/support/m.../cn1020_r2.pdf

And the the GWS PG-03 (Under Gyro series, it's the 2 far right documents page 1 and 2)
http://www.gws.com.tw/english/servic...aux_manual.htm