I have a 450 Pro and upgraded the tail to a nice " too cheap " dual arm .... It was all made from aluminium and was as free as air when pushed with the slightest of touches of the finger.
I noticed one day recently how hot my servo was getting after one flight. Then as I was landing next time the heli spun around just before setting down. This time my Futaba s 9527 was roasting and buzzing so I turned everything off.
The tail slider was jamming up on the rotar bar, it only took the slightest of touches on one side of it to make it jam on hard. I have very quickly reverted to a single arm and is fine now. But hey guys ,forget buying cheep HK upgrades here, its not worth it. One other thing when pressing on the eyelet into the ball link the aluminium arm kept bending up under duress, clearly it wasnt made for the job.
I noticed one day recently how hot my servo was getting after one flight. Then as I was landing next time the heli spun around just before setting down. This time my Futaba s 9527 was roasting and buzzing so I turned everything off.
The tail slider was jamming up on the rotar bar, it only took the slightest of touches on one side of it to make it jam on hard. I have very quickly reverted to a single arm and is fine now. But hey guys ,forget buying cheep HK upgrades here, its not worth it. One other thing when pressing on the eyelet into the ball link the aluminium arm kept bending up under duress, clearly it wasnt made for the job.
