Align T-rex 550e 3gx something snap or came loose & tail boom strike Sept. 2,2011.MP4

[fredo3876]

Hello, there is a big issue on the slider of the 550 V2. The spacer between the 2 bearings of the slider gets welded to the aluminium body because gap is only 0.005mm between them ! I broke 2 H60077AT and cutted one before understanding the problem. Your video sounds looks like if something was slowing down your heli before everything brakes, strange...

[JTASA7777]

THE PROBLEM HERE IS SIMPLE 3200 HEAD SPEED THE SHELL EVERY TIME

[andytam11]

So 3GX setting is not automatically reset to factory default during crash?

if your 3GX setup still there, sound like the problem is really the mechanism.

[hiki2502]

@andytam11 yes the 3GX is working perfectly.. the causes of the crash is mechanical...

[andytam11]

Did you check the setting of 3GX? Some ppl report the setting reset automatically during mid flight, hope this do not happen to yours....

[hiki2502]

@andytam11 yes i did check the settings on the 3GX . and when i review the video i heard some high oitch sound then the heli spin out of control and something just snap and blade hit the boom . i hit throttle hold but it is not recoverable it just happened too fast..

[MrJOHNM3]

how did this happen did something come loose ???

hope you can repair it

[hiki2502]

@MrJOHNM3 i suspect that the pinion came loose (notice it when i pick up the heli)and stall the motor the momentum of the tail rotor kicks in which cause the heli to spin, i hit throttle hold and suddenly the blade hits the boom and fell on the ground.. the heli is back in the air again ..