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HomeAircraftHelicopterAlignT-REX 600N › Stripped tail gear
01-20-2010 03:10 AM  8 years agoPost 1
jasonrusso

rrApprentice

Haverhill, Massachusetts

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I have a 2 Trex 600n sports (belt drive). I have a 401/9254 in one of them, and a 770/8900g (absolutely sick piros) in the other. While flying the 401, I was hovering and doing piros, then stopping. After about 3-4 of these, I heard a crunch (knew what it was), and then I watched in horror as the tail rotor slowed down and stopped. The heli began to spin, I hit the throttle hold and aimed it for the tall grass. I brought it in, and only broke the landing gear struts. I have already ordered some new tail drive gears. Is this a common occurence with moves like this? I know it puts a lot of stress on the gear when it stops abruptly. If the 401 can strip out a gear, I know the 770 can!! Is there a way to avoid this?

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01-20-2010 04:49 AM  8 years agoPost 2
LonR

rrElite Veteran

Macomb,Mi

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Is there a way to avoid this?
Yes,turn the piro rate down or keep replacing gears.I had the JR 7703D so I know how fast the tail can spin and the stops are HARD.

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01-20-2010 04:56 AM  8 years agoPost 3
Blink 182

rrApprentice

California

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What happens is the gears heat up with from the forces from the tail rotor and they become weak. You can lower your gain or piro rate, preferably piro rate. Unfortunatly you cant lower stop gain like other gyros.

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HomeAircraftHelicopterAlignT-REX 600N › Stripped tail gear
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