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600 Class Electric Helicopters 600 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 07-12-2014, 02:27 PM   #861
Luvmyhelis
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Quote:
Originally Posted by runesb View Post
Posted from another awesome member who actually knows the stretch quite well. Good seeing ya bro! Those are some seriously nice blades you linked.

Now where can a cheep skate like myself ever find those for about half price?
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Old 07-13-2014, 05:59 AM   #862
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Hi guys
Been reading up on this thread this Arvo and got very excited, I have a trex 500 fb heli and after reading this thread was thinking of stretching it ito a 600 FBL I am not really great with the electronics of heli's so was going to go with the walkera RX2703H-D to make things easier so any ideas or thoughts would be appreciated, don't do 3D yet but maybe in the long time future lol , love reading all the way out thoughts all you guys have keep it up
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Old 07-14-2014, 08:22 PM   #863
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There are actually two threads that spawned off the stretch 600 idea on both the 550 and 500 threads. I have seen some astounding builds coming out of there. Really the main issue seems to be coming down to gear strength or aftermarket gear availability as to how durable the stretch's stay. And a few deviations of 6s vs 12 or 14s, and then tt or belt preference? But the same build requirements are still there in both.

If you are going to treat your 500 to 6 stretch easy. I certainly don't see many problems not easily overcome?
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Old 08-15-2014, 10:40 AM   #864
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Just finished a very mild stretch job on my 600 DFC pro, the object was to fit 105mm tail blades and 623mm mains. The boom was increased in length by 35mm which is hardly noticeable without having a standard 600 for comparison.

The only slightly tricky part of the mod was getting the drive spigot back into the cut down torque tube. This took more brute force than i was comfortable with, but it popped in eventually and I used some green loctite to fix it. I'd be interested in hearing if there are any special tricks in shortening the torque tubes?

Anyway, it flies great and the improved tail authority is noticeable as is an increase in 'pop' as result of the new main blades.

here she is:


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Old 08-15-2014, 05:01 PM   #865
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Most TT ends I've dealt with are threaded into the TT itself, others that are "slip fit" are held in place by either a press pin or nut and bolt combination.

For the most part.... many who do a 600 "stretch " usually use a full length 700 TT so no resizing is required.
But, as in your case a full length TT would have been too long.
Another method would be to remove a section ( near 2/3 distance fron the end ) of the stock length 700 TT and insert a length of 1/4" OD thick walled tubing to section the two pieces together using JB Weld and either press pins or nuts and bolts.
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Old 08-16-2014, 09:35 AM   #866
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Just a trick for TT to make a ''mild'' stretch on a 550/600 or to shorten a 700, you can use an outrage TT, it's a direct fit if you don't have the tool or skill to cut a TT. Those outrage 600 heli (50 size) are made to accept 640mm blade from factory.
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Old 08-23-2014, 02:01 AM   #867
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Great tips guys. If I'd have known before about the Outrage TT I'd have gone that route. The Trex TT is indeed threaded (left hand). You lose the threads when you cut it down, so that explains why it was so hard to press back in. Anyway, i added a 2mm bolt/pin to positively locate the drive spiggot.

Thus:
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Old 09-02-2014, 06:25 PM   #868
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Nice work!
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600 Class Electric Helicopters 600 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.

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