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550 Class Electric Helicopters 550 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 06-28-2012, 09:36 AM   #1
CaptHal8HS
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Default Differences between all the TREX 550 kits?

I am thinking about building a TREX 550 FBL heli. But I am really confused about all the different versions of the kits that are out there - ESP, EFL, Pro, Combo, etc.
Can someone point out the differences between all the kits that are available from Align for their 550 class helis? I'm thinking about using the AR7200BX in the system.
Thanks!
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Old 06-28-2012, 09:43 AM   #2
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As far as I know there are only two 550 kits available from Align. That is the FBL kit and the FB kit. There is no ESP, EFL or pro kits in the 550. The only thing you want to make sure is that you get the V2 kit.
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Old 06-28-2012, 10:07 AM   #3
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What is the difference between the 3G, the 3G Combo, the 3GX, 3GX Combo, 3GX Super Combo, ????? I'm confused....
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Old 06-28-2012, 10:23 AM   #4
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According to Align's site they only have these two kits. Its possible that vendors are selling older kits?

http://www.alignrcusa.com/index.php?...97acc9fd5ff75a
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Old 06-28-2012, 11:57 AM   #5
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I'd love to build a kit using the AR7200BX, not the 3GX. I guess I could do it and then sell the 3GX unit.
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Old 06-28-2012, 12:01 PM   #6
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Yeah I dont blame you there. You can always get the kit of Ebay with no electronics and then buy whatever you want to run, I do that all the time.
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Old 06-28-2012, 12:05 PM   #7
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Any suggestions on who to buy it from? I hate eBay for that reason; don't know who you are buying the kit from. I don't want to get stuck.
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Old 06-28-2012, 12:08 PM   #8
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There are a couple guys in NY that are great...but then you have to pay tax. I used to have a couple others guys, one in Utah and the other in Ohio but I haven't been able to get a hold of them lately.
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Old 06-28-2012, 12:09 PM   #9
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http://www.ebay.com/itm/Align-T-REX-...item2572306552
This guy is legit too.
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Old 06-28-2012, 12:20 PM   #10
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This my understanding of the different 550 kits.

FBL & FB
V1 , V2, and V2.1

Some sites sell the V2 at the same price as the V2.1 (KX021008AT) , so make sure you're comparing apples with apples.

The Align servos are good, so for me I'd go with the combo deals and sell off the ESC and FBL controller.

The 3GX FBL controller with the V2.1 firmware works really well, so you might want to consider giving it a try first.
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Old 06-28-2012, 02:05 PM   #11
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Cool! Regarding the designation of the kit V2.1; does that have to do with the firmware of the 3GX FBL controller or are there some changes to the kit as well? How do you like your T-Rex 550 V2.1 - CC100 - BEC Pro - AR7200BX with the TM1000? Sounds awesome! The AR7200BX seems very straight forward to program. No? I'll bet the programming for all those options in the AR7200BX will be in the TX one day soon.
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Old 06-28-2012, 02:52 PM   #12
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As far as Im aware, and I have one, the V2.1 has Helical (slant) main gear, pinion and DFC blade grips which means you only have to buy the DFC head upgrade kit and not grips also.

Last edited by Bonkievan; 06-28-2012 at 04:15 PM..
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Old 06-28-2012, 02:58 PM   #13
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Quote:
Originally Posted by Bonkievan View Post
As far as Im aware, and I have one, the V2.1 has Helical (slant) main gear and DFC blade grips which means you only have to buy the DFC head upgrade kit and not grips also.
Sorry, I'm a bit of a noob; What are the DFC blade grips and head upgrade kit?
THanks!
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Old 06-28-2012, 04:06 PM   #14
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Direct Flight Control - thanks to poster- http://www.piroflip.net/trex-550e-v2-dfc-head-upgrade/

Lowers the CoG, see pics, and is supposed to improve performance accordingly.

I've done it on mine and even though i'm not good enough to notice performance increase, it certainly looks far better
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Old 06-28-2012, 04:16 PM   #15
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.....and here's a thread to the Helical gears etc...
http://www.helifreak.com/archive/ind.../t-317121.html
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Old 06-28-2012, 04:42 PM   #16
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Pure awesomeness!
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Old 06-28-2012, 05:20 PM   #17
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I bought mine here:
www.performanceplusrc.com

He has an option where they take out the 3GX for a $70 credit. Really good price as well. The 3GX's go for around $100 on the for sale section but this saves you the hassle.

If noone else answered, the 3G was the older version of the FBL controller. The current version is 3GX. New kits should have the 3GX.

Like you, I am using the AR7200BX.
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Old 06-28-2012, 06:44 PM   #18
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Yeah, that's the route I'm going to go when I build my 550E V2. I want to go with the AR7200BX. Looks like it's so simple to configure. I also want to choose my own servos, ESC, etc... Anyone have any suggestions for servos?
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Old 06-28-2012, 06:55 PM   #19
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Quote:
Originally Posted by CaptHal8HS View Post
Yeah, that's the route I'm going to go when I build my 550E V2. I want to go with the AR7200BX. Looks like it's so simple to configure. I also want to choose my own servos, ESC, etc... Anyone have any suggestions for servos?
Yes, DS610's for cyclic and DS620 or DS650 for the tail.

Why do you believe that the stock kit is inadequate for you? - I'd understand if you were a pro 3D pilot.
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SAB Goblin 700 - CCHV120 - BEC Pro - SK540 - TM1000 / 450 Pro - GT5 - Tarot head / T-Rex 550 V2.1 - CC100 - BEC Pro - AR7200BX - TM1000 /
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Old 06-28-2012, 07:12 PM   #20
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I've had no issues with my 3GX, not that i've used another unit so can't comment on those. What I can say is that its certainly not as complicated as most make out, even for a reletive noob like me it was 10mins from woe to go

However, for my next build, hopefully the Trex700DFC, I would like to try another system i'm leaning towards V-Bar or Skookum.
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