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HomeAircraftHelicopterAlignOther › 600 Belted tail case unit - Convert to Torque Tube?
04-01-2009 04:13 AM  9 years agoPost 1
vrwired

rrVeteran

Boulder County, CO

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Have a belted 600, and am wondering if the belted tail case unit can be updated to accept torque tube gears? Converting to torque tube, and want to use the same tail case unit for the torque tube.

Also.. is there really a differnce between the 700 tail unit and the 600 torque tube tail unit?

Thanks

JR GSR260 - Mark IV Cam Mount
Trex 600NSP
Trex 600 to 700 Stretch
Trex 450SE
Hornet X3D

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04-01-2009 04:15 AM  9 years agoPost 2
george0079

rrElite Veteran

USA

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No. you can't use the belt case for a TT.

And, the 600 and 700 cass are different. They won't interchange

Hell... I can fix that.
Uh oh..
Nope.
It's ***ked!!!
RE-KIT!!!!!

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04-01-2009 04:30 AM  9 years agoPost 3
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

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Curios as to why the change to TT ??
These are my thoughts, please add or correct me.

Two sets of right angle gears for TT.
Two sets of bearings and bearing blocks at each end. (4 BB total plus one in the middle of TT + 5).
Gears are easily damaged if tail rotor touches the ground even briefly.
Replacement cost greater on boom strike.
Setup of gears is critical. (Ask me how I know )

BELT:
Simpler, no bearing and bearing blocks at each end.
No center TT bearing.
Much more forgiving on tail rotor groundings.

The only advantage of TT drive that I can see is somewhat lower friction.
I have both and I much prefer the simple belt drive system.

OK guys, let me know ??

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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04-01-2009 05:21 AM  9 years agoPost 4
dkshema

rrMaster

Cedar Rapids, IA

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Have a belted 600, and am wondering if the belted tail case unit can be updated to accept torque tube gears? Converting to torque tube, and want to use the same tail case unit for the torque tube.
But you can't just "modify the tail case", as you have to do something similar to the FRONT end of the boom. Something needs to DRIVE the TT to begin with, and it isn't present in the belt-design.

The belt-driven mechanics and the TT driven mechanics are as different as night and day. You won't save time, you won't save money trying to convert one to the other.

The way to convert is to buy the conversion parts.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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04-01-2009 03:27 PM  9 years agoPost 5
rcnut

rrElite Veteran

Rockford, Illinois

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Have a belted 600, and am wondering if the belted tail case unit can be updated to accept torque tube gears?
Yes, you can convert the belt to a torque tube drive system. There is a conversion kit for this.....comes with a new tail drive.
Converting to torque tube, and want to use the same tail case unit for the torque tube.
No, the tail case's are different. As well as the boom clamp at the frames. The boom clamp is in the conversion kit.
Also.. is there really a differnce between the 700 tail unit and the 600 torque tube tail unit?
Yes, the 600 is different from the 700.

In the kit,[url=http://www.heliproz.com/prodinfo.asp?number=360118], for $110.99, you get the boom clamps, front gear set, torque tube, and tail drive.

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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04-02-2009 01:01 AM  9 years agoPost 6
jelkins

rrApprentice

Oklahoma City, OK - USA

My Posts: All  Forum  Topic

Curios as to why the change to TT ??
These are my thoughts, please add or correct me.

Two sets of right angle gears for TT.
Two sets of bearings and bearing blocks at each end. (4 BB total plus one in the middle of TT + 5).
Gears are easily damaged if tail rotor touches the ground even briefly.
Replacement cost greater on boom strike.
Setup of gears is critical. (Ask me how I know )

BELT:
Simpler, no bearing and bearing blocks at each end.
No center TT bearing.
Much more forgiving on tail rotor groundings.

The only advantage of TT drive that I can see is somewhat lower friction.
I have both and I much prefer the simple belt drive system.
My thoughts exactly.
I also have both and prefer the belt drive as it is more forgiving.

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04-02-2009 01:09 AM  9 years agoPost 7
dkshema

rrMaster

Cedar Rapids, IA

My Posts: All  Forum  Topic

RCNUT --

embedding URL links in a post is easy:

[ur l]http://www.heliproz.com/prodinfo.asp?number=360118[/ur l]

leave out the spaces between the "r" and the "l" in both bracketed tags above, the link will look like this:

http://www.heliproz.com/prodinfo.asp?number=360118

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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