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T-REX 450 › Flight becomes unstable.
12-27-2008 02:54 AM  8 years agoPost 1
ply68

rrNovice

Atlanta, GA

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I have a trex 450se which has been flown about 50-60 times. It has always flown nicely until now. When I try to hover the heli, the power tends to get weaker and weaker to a point where the heli becomes unstable. My radio setting has not been changed. I have 8 sets of lipos that I use so I don't think it is a battery problem.

Things I have done:

Bought new motor and esc (align) but does not seem to fix the problem.

If anyone has experienced this, please let me know what you did to fix it. Thanks

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12-27-2008 03:13 AM  8 years agoPost 2
Heli 770

rrProfessor

USA.

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What batteries are you using?

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12-27-2008 03:17 AM  8 years agoPost 3
Ken4

rrApprentice

Singapore

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Bearings are seizing?

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12-27-2008 03:20 AM  8 years agoPost 4
ply68

rrNovice

Atlanta, GA

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What bearings usually cause the problem seize?

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12-27-2008 03:22 AM  8 years agoPost 5
Heli 770

rrProfessor

USA.

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Main, tail output, tail input.

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12-27-2008 07:29 AM  8 years agoPost 6
Dale M

rrApprentice

Lakewood Ca USA

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Which motor and esc did you buy? Is your charger O.k.?

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12-27-2008 02:50 PM  8 years agoPost 7
bah7566

rrVeteran

Colorado

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Sounds like the battery pack is nearing the end of it's life. If you have 8 packs either they are all getting bad or they might be too cold. Warm them up to room temperature before you fly them.

I am a Heli addict!!!

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12-28-2008 11:48 PM  8 years agoPost 8
ply68

rrNovice

Atlanta, GA

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I bought the exact same motor and esc that came with the trex. The battery packs are all of different age. Some are newer than others. I was suspecting the bearing might be going bad but I didn't have time to had the desire to start taking the heli apart. Thanks for all the replies.

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T-REX 450 › Flight becomes unstable.
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