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T-REX 500 › REX 500 ESP TT grears prone to strip?
06-04-2009 05:30 AM  8 years agoPost 1
dalong2362

rrNovice

BC - Canada

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It was nice day today and decide to fly my trex 500 esp with my friends at work.... During flight #1, found my spartan ds 760 was little sloppy(thought due to the wind gust)and landed after 5 min or so. Flight #2 I found that heli spun almost 720 degree without any warning 2 times during 5 min span on FF. After I landed, found front tt front gear set has stripped about 30%.... It is new machine and flew about 12 times total..

Is this a bad luck or good luck?

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06-04-2009 05:31 AM  8 years agoPost 2
Melon

rrApprentice

California

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Possibly your tail stop setting is too hard?

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06-04-2009 05:35 AM  8 years agoPost 3
dalong2362

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BC - Canada

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I did hard landing (little bouncing and tail rotor hit the grass when I laded)on previous day and I assume that is one of the biggest factor....

Well, learnd the lesson. preflight check before the flight!

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06-04-2009 05:39 AM  8 years agoPost 4
blbills

rrKey Veteran

Provo, UT

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I have been flying the 500 for over a year now and have had quite a few accidental impacts with the ground and have never stripped any gears. (using the TT)

Brian

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06-04-2009 05:44 AM  8 years agoPost 5
dalong2362

rrNovice

BC - Canada

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Well, it happend to me.... I could not think of any other causes other than hard landing. I've nerver done a 3d or sport flight not even an inverted flight.
Bad luck on newbie!

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06-04-2009 11:08 AM  8 years agoPost 6
perfeet

rrNovice

Oslo, Norway

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I have stripped my front TT-gear three times during landings with my 500 (have had 400 flights).

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06-04-2009 12:00 PM  8 years agoPost 7
snjbird

rrKey Veteran

Kissimmee, Florida- USA

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Yup touch the tail and if you are under power they will strip, I always kill the power first, then set her down, and I do autos too, then the power is out of the landing equation.

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06-04-2009 01:49 PM  8 years agoPost 8
Triflyer

rrNovice

Trinidad

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I have had to change TT gears both front and back as well. They damage easily when the tail blades touch even grassed surfaces. I think that it is a good thing as that seems to be the sacrificial parts to avoid more serious damage elsewhere. I keep a couple front and back TT gears in my toolkit.

I am a beginner and have installed a ping pong ball over the bottom of the vertical tail stabilizer to prevent it from going down into the dirt or grass. That keeps the tail blades from touching down. Just made a small cut into the ball and slid it over the bottom of the stabilizer. Looks fine and works fine for general hovering. Maybe not for 3D!

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06-04-2009 03:07 PM  8 years agoPost 9
blbills

rrKey Veteran

Provo, UT

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The 500 gears don't strip anywhere near as easily as the 600! Much more durable for some reason.

Brian

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06-04-2009 03:24 PM  8 years agoPost 10
Skarn

rrVeteran

Pasadena, MD

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From my experience with the TT 500, yes!

I just had to replace mine two weekends ago from a tad hard landing. Same thing again this past weekend!

If you guys don't think people are having a problem with them, go to all of your favorite online parts places and see how many are out of stock!

Two weeks ago I tried:
ReadyHeli
Helidirect
Techmodelproducts
HeliProz
Helihobby

EVERY one of them were sold out of the Front TT gears! I did end up finding one by doing a google search and using a place I'd never used before.

Skarn

It's better to burn out than to fade away...

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06-05-2009 07:33 PM  8 years agoPost 11
dalong2362

rrNovice

BC - Canada

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Heli has been Repaired...
Pick up the last one from Hellevaheli.com and mine is up for flight again!

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06-05-2009 08:03 PM  8 years agoPost 12
butters149

rrApprentice

monterey park, ca

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is there a metal gear upgrade?

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06-05-2009 09:03 PM  8 years agoPost 13
dalong2362

rrNovice

BC - Canada

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Not that I know of.... is there anyone knows?

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06-07-2009 03:06 AM  8 years agoPost 14
need help

rrNovice

Australia

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if there is an upgrede you are only going to transfer the stress further dowm the line and then you will proberly strip main gears,the 600 tt have same issue if you land hard you will strip the front gear the gears are cheap.

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06-07-2009 04:24 PM  8 years agoPost 15
dalong2362

rrNovice

BC - Canada

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yup. It will transfer the force to main gears and cause main gear to strip but which one is easy/cheaper to replace?

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06-08-2009 02:36 PM  8 years agoPost 16
Micro-Maniac

rrElite Veteran

Pasco,Washington Formerly: Captain Chaos

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I just built an ESP kit and found the all the tail gear meshes to be way too loose - I had to shim the bevel gears to get them meshed properly and now fixing to put dremel to frame to get a better mesh between the tail transmission and main gear - If other people's gear meshes are as loose as mine were then I don't doubt they're stripping gears too easily

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06-12-2009 03:06 PM  8 years agoPost 17
Triflyer

rrNovice

Trinidad

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Believe me, this saves my TT front and back gears. The ping pong ball stops the tail vertical stabilizer from going down into the grass or dirt thus preventing the tail rotor blades from touching down and damaging TT gears.

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06-12-2009 11:44 PM  8 years agoPost 18
dalong2362

rrNovice

BC - Canada

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lol. TriFlyer.
looks good. I might end-up trying pingpong ball trick

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T-REX 500 › REX 500 ESP TT grears prone to strip?
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