Blade 400 violent tail spin

Kent P. · Posted: Sun Feb 19, 2012 12:20 am Post subject: Blade 400 violent tail spin

Hello all,
I recently obtained a Blade 400 used and proceeded to crash it in less than 10 seconds. So I repaired it and am trying to get it trimmed out. The problem I am having is that when I throttle up to make it light on the skids at a point it goes into a violent tail spin counter clockwise. I'm pretty new to this hobby and really don't know where to start. Even when starting to throttle up I have to give it alot of right rudder. I know some is normal but this is like full right and if I punch the throttle then it goes to the spin. I suspect something with the gyro but am not sure. Thanks in advance for any help.
Kent P.
_________________
Micro mini coaxial
First Chopper 9116 Double Horse
2nd Chopper Align 450 Sport
2 Align 450 SE V2 "Baby & Bonsai"
Learning to fly when you don't have wings, coming down is the hardest thing.

tombo242 · Posted: Sun Feb 19, 2012 12:34 am Post subject:

Hi Kent, two things to check first:

1: Are the tail blades the correct way around and moving up into the rotor wash at the leading edge?

2: Is the gyo reversed?

Either will cause a violent spin if not correct.

Tom.
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Kent P. · Posted: Sun Feb 19, 2012 12:59 am Post subject: Blade 400 violent tail spin

Hey tombo,
You are correct in the tail blades going the wrong direction. While I was waiting for a reply I "checked the basics" and that is what I found. Someone put it together backwards. I didn't know this and I believe that is why I crashed it in the first place. Any way I reversed the belt and the blades and the chopper flies now. Thanks for your reply.
Kent P.
_________________
Micro mini coaxial
First Chopper 9116 Double Horse
2nd Chopper Align 450 Sport
2 Align 450 SE V2 "Baby & Bonsai"
Learning to fly when you don't have wings, coming down is the hardest thing.

tombo242 · Posted: Sun Feb 19, 2012 1:15 am Post subject:

Your very welcome Kent, its not the first heli to have its tail reversed - far too easy to do unless you're very careful.

Tom.
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Keep Smiling Smile