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Old Apr 07, 2008, 03:40 PM
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Trex 600N or Trex 600N Pro

If I go with a Trex 600N....


Do I want the Standard Trex 600 belt driven or the PRO which is the shaft driven tail?
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Old Apr 07, 2008, 05:48 PM
HobbyKing
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Hong Kong, Hong Kong Island, Hong Kong
Joined Apr 2001
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You'll be happy with either one. They each have their strengths, and weakness's. The TT will rob less power on autos, though you could strip the gears out easier if you hit the tail on the ground.

I had a sport and was quite happy with it.

--Paul
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Old Apr 07, 2008, 07:23 PM
A man with too many toys
United States
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Unless you are a real expert and never hit the tail blades on the ground get the belt drive version. For 99% of us a belt driven tail is the best.

I have a Trex 600E with a belt drive and it never gives any problems. I have had a lot of other problems but not with the belt drive.


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Old Apr 07, 2008, 10:08 PM
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McKinney, TX
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Also, if you bend a boom with a TT, you usually have to replace gears and a torque tube in addition to the boom. With a belt drive, you usually just have to replace the boom and, rarely, the belt. I have a Pro and plan to convert it to belt drive the next time I have damage to the TT or gears.
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Old Apr 07, 2008, 11:02 PM
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TheBum

You said "if you bend a boom with a t/t, you usually have to replace gears and a torque tube in addition to the boom."

That is not necessarily true, as it depends on the design of the torque tube system. I have flown a number of t/t systems, have bent the booms and did not have to replace the t/t or any gears. If it is a design like that in my Raven or Predator, which has a U-joint dog-bone at both ends of the t/t, then the boom can suffer a fair bend without damaging the t/t. But, I do not know if the Align t/t is that type of design.

Of course, a boom strike that flattens and kinks the boom, then the t/t will be damaged. But I have also cut or damaged belts bad enough (ripped teeth off of them) in such situations to require replacing them also.

What I really like about the dog-bone design t/t systems, is that once set up, they do not need any further maintenance, they do not need tension adjustments, or wear out because they were tensioned a bit too tight (which can wear out the toothed pulleys very quickly also). The t/t system also does not have the guide pulley wear problems seen in a number of belt systems.

Just as there are different designs of belt drive systems, that differ greatly in their advantages and disadvantages. So are there different designs of t/t systems that also differ in their ads & disads.
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Old Apr 08, 2008, 07:33 AM
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OK, cool, so now I'm confused.

This is going to be my first Nitro. I have a Trex 450 and a few other 400 class helis.

I'm ready....

Should I go with the t/t or the belt driven?
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Old Apr 08, 2008, 09:50 AM
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I just maidened my 600N pro 2 days ago, so I'll share my thoughts on it.

I can proficiently fly my 450 V2, and have no problem keeping the tail off the ground, so I went with the pro. For a beginner that is learning autos, or not very familar with heli's in general the belt is definetely a better option.

I fly 3D with both my heli's and the 600N is outstanding. It will Tic-Toc till you're out of gas. I think you'd be happy with either one, I jsut went with the pro because I knew that I would want to upgrade later if I didn't.

My .0002
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Old Apr 08, 2008, 10:49 AM
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Quote:
Originally Posted by Cyclick
You said "if you bend a boom with a t/t, you usually have to replace gears and a torque tube in addition to the boom."

That is not necessarily true, as it depends on the design of the torque tube system. I have flown a number of t/t systems, have bent the booms and did not have to replace the t/t or any gears. If it is a design like that in my Raven or Predator, which has a U-joint dog-bone at both ends of the t/t, then the boom can suffer a fair bend without damaging the t/t. But, I do not know if the Align t/t is that type of design.
It isn't. It's a rigid rod.
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Old Apr 08, 2008, 12:19 PM
Mulit-Platform Pilot
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United States, FL, Jacksonville
Joined Sep 2004
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Save yourself some money and agrivation and get the sport, upgrade the canopy when you get a chance and the frames if you must but I prefer the G10 personally for the price. You have a ways to go to appreciate the small power gain of a torque tube tail.
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Old Apr 08, 2008, 02:34 PM
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what kind of flight time do you get off a 600E?
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Old Apr 23, 2008, 01:04 AM
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United States, VA, Ashburn
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4.5-7.5 mins depending on flying style, HS, motor, etc. Most are getting about 5.5-6 mins.
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Old Apr 23, 2008, 06:35 AM
A man with too many toys
United States
Joined Feb 2001
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I have an 8s setup and get about 7-8 minutes. I really love the 600E. Since I got that helicopter my nitro birds most sit on the ground.


I have an 8s setup and get about 7 minutes. I really love the 600E. Since I got that helicopter my nitro birds most sit on the ground.

Neu Motors 1515/2Y
Two Max Amps 4200 4s LiPo battery (makes a 8s 4200 pack)
CC HV ESC
Governor settings: 1800, 1975, 2050
Futaba 7C-2.4 radio (much better than my DX7)




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Old Apr 24, 2008, 12:58 AM
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If it is not a torque tube drive system with a dogbone type of coupling system, then you would be better as a beginner with their belt drive version.
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Old Apr 24, 2008, 06:24 AM
A man with too many toys
United States
Joined Feb 2001
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Quote:
Originally Posted by Cyclick
If it is not a torque tube drive system with a dogbone type of coupling system, then you would be better as a beginner with their belt drive version.
The torque tube drive is very fragile Ė I have had no problems with the belt drive and I see no logical reason to change.

We have certainly flip-flopped on this issue. I remember a few years ago when the upgrade was to convert a bear drive tail to a belt to improve the durability. Thatís when all the manufacturers converted most of their helicopters to belt drive.

Now for some strange reason Align has decided that a drive shaft tail would be a good upgrade. They were probably looking for something expensive that they could sell as an upgrade. It was a good marketing decision because now they can sell a lot of replacement parts. Itís all about making more proffit for the manufacturer.



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Old Apr 24, 2008, 02:14 PM
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The true test comparison, relative to performance, is only achieved by comparing the same helis that are identically equipped and set-up. Then flying the snot out of each for say 200 flights or so.

I have done so with a number of models that have offered both systems over the years. Consequently, I have become a firm fan of the torque tube drive system, not only for best performance, but also from a maintenance and durability point of view. This is because they never need adjusting due to temperature, they never need adjusting due to wear or stretch and they virtually never wear out....not so with the belts.

The only area that I found the belts to have an advantage (and a small one at that, when comparing to a better designed t/t system that had dog-bones at each end to allow the boom to be bent without damaging the t/t), was in a crash, were the boom was badly bent (and I have had many belts cut/broken in such mishaps also).

That is precisely why Thunder Tiger goes from a belt drive to a t/t drive when they go from their 30/50 to their 90.

Or that the Freya is offered in a sport version with belt and a hi-performance version with a t/t drive.

Or that JR offered the Vigor in a belt driven sport version and the Hi Performance version with a t/t system

And why here, Align offer the T600 with a sport version belt drive and the Pro version with the t/t drive.

But none of those above offer a t/t version that has a dog-bone type of universal at the front or at the front and back as do some others like MinAir and Century. IMHO, these offer the best of both worlds, so that even for sport flyers, they offer a better option then the belt.
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