helicc16
the Smoothie Pilot
After taking the AR7200BX off my Blade 300, I threw a 3GX unit on it and went through a thorough set-up (including a upgrade to firmware 3.0). So far, I've crashed it at least thrice during testing. The first time, the heli was doing fine about 5 feet in the air until the end of the flight when all of a sudden, it started to pull hard to the right and crashed into a wall.
The second time, being more cautious from the last crash, I took it easy on the heli, hovering it no more than a couple feet off the ground. Again, it was rock steady well into the first half of the flight. Then again, it took a dive for the ground so fast I had little to react. The repair bill was more expensive this time, including 2 brand new Eflite servos.
Suspecting either a gyro or servo problem, I decided to be doubly careful on the third try, barely lifting heli off the ground. This time the heli was rock steady for the entire battery; however, barely a minute into the 2nd battery, it suddenly started to lurch toward the front right. Anticipating this happening, I cut the throttle just in time to prevent another crash.
In the following video, you'll see that the swash-plate starts tilting in the front right direction on its own as the main rotor speeds up. When I disable the motor without disconnecting the throttle signal, it works fine.
<iframe width="420" height="315" src="http://www.youtube.com/embed/r_u4mctGxmw" frameborder="0" allowfullscreen></iframe>
Additionally, when this happens, the heli keeps yawing left in HH mode, fighting against my rudder control inputs.
I'd like to hear your thoughts. This is particularly troubling because most of my FBL helis are powered by 3GX
The second time, being more cautious from the last crash, I took it easy on the heli, hovering it no more than a couple feet off the ground. Again, it was rock steady well into the first half of the flight. Then again, it took a dive for the ground so fast I had little to react. The repair bill was more expensive this time, including 2 brand new Eflite servos.
Suspecting either a gyro or servo problem, I decided to be doubly careful on the third try, barely lifting heli off the ground. This time the heli was rock steady for the entire battery; however, barely a minute into the 2nd battery, it suddenly started to lurch toward the front right. Anticipating this happening, I cut the throttle just in time to prevent another crash.
In the following video, you'll see that the swash-plate starts tilting in the front right direction on its own as the main rotor speeds up. When I disable the motor without disconnecting the throttle signal, it works fine.
<iframe width="420" height="315" src="http://www.youtube.com/embed/r_u4mctGxmw" frameborder="0" allowfullscreen></iframe>
Additionally, when this happens, the heli keeps yawing left in HH mode, fighting against my rudder control inputs.
I'd like to hear your thoughts. This is particularly troubling because most of my FBL helis are powered by 3GX