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HelicopterCentury Radikal G20-30 N640 Hawk Predator › Make sure that the set screw of the Tail rotor output gear is locked tight. On Hawks or Raven
10-26-2012 06:16 AM  5 years agoPost 1
jcer93705

rrApprentice

fresno california USA

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Just make sure when you get a Hawk pro or something simular to add lock tight on the setscrew. Everything seem to be lock tight but this was not lock tight and got loose in flight. Did a piro luckily I was couple feet off the ground. Please apply Lock tight or you will be sorry.

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10-31-2012 08:13 AM  5 years agoPost 2
dell17999

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Shanghai,China

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I'll check on my Raven, thanks.

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10-31-2012 08:33 AM  5 years agoPost 3
adamsz06

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Geilenkirchen Germany

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Don't just check that screw...check every screw for loctite, except the ones going into the plastic frame.

R.I.P. Roman

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10-31-2012 08:38 AM  5 years agoPost 4
adamsz06

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Geilenkirchen Germany

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Another tip for the next time you have the plastic frames apart is to check and make sure the countershaft bearings are seated tightly and squarely in the bearing pockets. If the bearing isn't square, it will eventually spin itself free, which will then melt the plastic and lock up the bearing. If this happens while the counterpart is spinning it will saw the shaft in half...ask me how I know. After it happened twice on my first Hawk many years ago I began applying just a thin layer of JB Weld to the outer race of the bearing when I installed it in the frame. Never had another failure....

R.I.P. Roman

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10-31-2012 01:02 PM  5 years agoPost 5
jcer93705

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fresno california USA

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Adamn another thing to use is goop also. Very good to hold ball bearings.

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10-31-2012 01:03 PM  5 years agoPost 6
jcer93705

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fresno california USA

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Dell nice reven!

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11-06-2012 02:16 AM  5 years agoPost 7
dell17999

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Shanghai,China

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thanks Jcer, Raven flies better and more predictable than Raptors. that's why I always keep it and sold my raptors and Evo and other small e-powered helis.

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HelicopterCentury Radikal G20-30 N640 Hawk Predator › Make sure that the set screw of the Tail rotor output gear is locked tight. On Hawks or Raven
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