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Other › T-Rex 600 Torque Tube Drive
01-23-2007 05:23 AM  10 years agoPost 1
3dwanabe

rrVeteran

Huntersville, NC

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I've been drooling over this upgrade since I first saw the teaser pics last month. Power consumption and performance is the same which is what I was expecting but auto-rotations are much improved. The blades retain much more energy. I was able to do several rolling and flipping autos very easily. During one rolling auto, I did the roll without hesitating inverted to pick-up some headspeed. I would never try that with a belt driven T-Rex 600.

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01-23-2007 06:00 AM  10 years agoPost 2
A&P

rrApprentice

Chandler, AZ

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It's great! So little drag on the system.

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01-23-2007 07:10 AM  10 years agoPost 3
lovetofly

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Dallas, TX - USA

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Thanks for those awesome pics!

I'm a little confused though...how can this mod be so much better for autos when you're saying power consumption and performance are unchanged? If this is say, 10% more efficient than the belt, wouldn't you expect the same savings everywhere? The difference must just be too small to notice?

In powered flight both the tube/belt has tension on it to resist the torque of the rotor, but in auto, the tail is not needed (no torque to resist). So I suppose the belt still has more inherint drag even under zero load...?

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01-23-2007 07:15 AM  10 years agoPost 4
Upside_dan

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Paradise, CA USA

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Sounds great 3D! Did you happen to notice whether the overall weight was more or less than the belt system? Hopefully you didn't have to move things around to balance the CG afterwards?

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01-23-2007 07:16 AM  10 years agoPost 5
A&P

rrApprentice

Chandler, AZ

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You got it.

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01-23-2007 07:26 AM  10 years agoPost 6
axis

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Lone Star State, USA

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Are the ends of the shaft removable?

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01-23-2007 07:34 AM  10 years agoPost 7
lovetofly

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Dallas, TX - USA

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And what is the tube made from? Looks like AL?

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01-23-2007 08:11 AM  10 years agoPost 8
A&P

rrApprentice

Chandler, AZ

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The tube is aluminum. The ends are pinned in place, I don't think their removable.

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01-23-2007 08:57 AM  10 years agoPost 9
TrexRookie

rrKey Veteran

San Francisco, CA

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how much for replacement shafts, should you have a tail boom strike? knock on wood...

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01-23-2007 09:11 AM  10 years agoPost 10
A&P

rrApprentice

Chandler, AZ

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$16.99

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01-23-2007 09:11 AM  10 years agoPost 11
TrexRookie

rrKey Veteran

San Francisco, CA

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oooooooo not bad..... hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

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01-23-2007 09:13 AM  10 years agoPost 12
A&P

rrApprentice

Chandler, AZ

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New gears are only $13.99

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01-23-2007 09:21 AM  10 years agoPost 13
Tintin

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Akershus, Norway

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I'm gonna ask'em to ship mine in this nice little suitcase

“Getting an inch of snow is like winning 10 cents in the lottery.”

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01-23-2007 02:43 PM  10 years agoPost 14
axis

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Lone Star State, USA

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The tube is aluminum. The ends are pinned in place, I don't think their removable.
Cool if they are pinned in place then they are removable. They may not be easily removable but they are removable. I was thinking that people like dbledsoe, who built a TRex 700, could use this rather than a belt for the extended tail.

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01-23-2007 03:38 PM  10 years agoPost 15
eyeflyhelis

rrElite Veteran

charlotte nc

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whats the whole upgrade cost and how much time to swap it over?

only you have the power to make no difference!

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01-23-2007 03:42 PM  10 years agoPost 16
A&P

rrApprentice

Chandler, AZ

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About $110 and half an hour.

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01-23-2007 03:44 PM  10 years agoPost 17
simarRC

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Toronto, Ontario, Canada

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very nice pics.

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01-23-2007 03:52 PM  10 years agoPost 18
d-bledsoe

rrVeteran

Kirkland WA

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Cool if they are pinned in place then they are removable. They may not be easily removable but they are removable. I was thinking that people like dbledsoe, who built a TRex 700, could use this rather than a belt for the extended tail.
I am planning on getting this and using it for my trex700. It will actually be quite an easy mod and seeing that the ends are pinned in makes me very happy. The only trick will be to get the tub the right length.

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01-23-2007 03:58 PM  10 years agoPost 19
eyeflyhelis

rrElite Veteran

charlotte nc

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d-bledsoe how big is the 700? got pics?

only you have the power to make no difference!

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01-23-2007 03:59 PM  10 years agoPost 20
eyeflyhelis

rrElite Veteran

charlotte nc

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110 & 30 mins a well worth it upgrade to not have a belt to worry about.

only you have the power to make no difference!

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