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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 12-03-2010, 09:36 PM   #1 (permalink)
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Default converting to FBL do I need 600FL shaft?

Converting my 600esp to FBL. I am using the align 3G head with a microbeast. Do I need the 3G 600fl main shaft or is the standard shaft ok? I know the difference is 2 mm in length but I am concerned maybe the holes are spaced differently in the different shafts. Anyone know for sure.
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Old 12-03-2010, 09:53 PM   #2 (permalink)
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My 3g head went straight on my 600 esp shaft no prob.
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Old 12-03-2010, 10:03 PM   #3 (permalink)
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Thank you.
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Old 12-04-2010, 04:17 PM   #4 (permalink)
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I didn't use the FBL mainshaft either (Vbar & 3G head). In fact, the shorter mainshaft would have resulted in too much throw for the Vbar to be in its' window of operation parameters, due to the geometry of the Align setup (especially the push pull lever ratio).

Stock main shaft will work fine.

What is the purpose of the 2mm shorther main shaft, anyone?


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Old 12-05-2010, 12:27 PM   #5 (permalink)
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Quote:
Originally Posted by Patriek View Post
What is the purpose of the 2mm shorther main shaft, anyone?
If the figures at freakware.de are correct, the FL shaft is 10mm shorter, not 2mm. Brings the disc closer to COG and should make the heli a bit more nimble. I modified the head to reach the same but will also try the shorter main shaft.

Thorsten
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Old 12-08-2010, 11:32 AM   #6 (permalink)
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Quote:
Originally Posted by Patriek View Post
I didn't use the FBL mainshaft either (Vbar & 3G head). In fact, the shorter mainshaft would have resulted in too much throw for the Vbar to be in its' window of operation parameters, due to the geometry of the Align setup (especially the push pull lever ratio).

Stock main shaft will work fine.

What is the purpose of the 2mm shorther main shaft, anyone?


-Patriek
Why would a shorter main shaft affect your level of throw? Surely you just shorten the links by the appropriate amount and then the geometry is pretty much the same?
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Old 12-09-2010, 02:55 AM   #7 (permalink)
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You are correct J-S-Q. DOH, never thought about that :o
Although 5mm either side is a bit much for the links to shorten..

Still, what's the purpose of the shorter FBL main shaft? Purely esthetics for us and $$$ for Align?


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Why would a shorter main shaft affect your level of throw? Surely you just shorten the links by the appropriate amount and then the geometry is pretty much the same?
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Old 12-09-2010, 07:39 AM   #8 (permalink)
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heres the FBL shaft
http://www.alignrcusa.com/index.php?...b28a692b9c17e7

And the regular shaft
http://www.alignrcusa.com/index.php?...oducts_id=1060

I can see wanting to lower the head, but according to these pages, its only 0.2 mm difference. why bother... maybe their numbers are off?
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Old 12-09-2010, 09:01 AM   #9 (permalink)
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Quote:
Originally Posted by Patriek View Post
You are correct J-S-Q. DOH, never thought about that :o
Although 5mm either side is a bit much for the links to shorten..

Still, what's the purpose of the shorter FBL main shaft? Purely esthetics for us and $$$ for Align?


-Patriek
I THINK one benefit is that you can achieve faster forward flight -because the CofG is closer to the rotor head, it takes less power to keep the heli tilted forward and therefore there is more power left to propel the heli forward.

I have heard differing views on cyclic response -some say a lower rotor disk will speed it up and others say the exact opposite -I personally think it would speed it up although in all honesty I couldn't tell the difference when I put a slightly shorter main shaft in my TRex 500 (I didn't fly them both on the same day though so it's hard to say).

The other benefit is that arguably it looks better!
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Old 12-10-2010, 09:46 AM   #10 (permalink)
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I have this shaft on my 600. It is 10mm shorter because the holes are closer to each other.
My advice, change it. It made a big change in flight. It now flips and rolls on axis with the new shaft. It is also faster. I did a whole writeup on he setup in the 3G forum. I cannot search it properly since I am using my iPhone as I type this.
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Old 12-11-2010, 08:19 AM   #11 (permalink)
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It will work fine with the Align FBL head but if you change to a KDE head you must use the FBL shaft that is 10mm shorter.
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Old 12-11-2010, 08:23 AM   #12 (permalink)
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Quote:
Originally Posted by zoomtt View Post
I have this shaft on my 600. It is 10mm shorter because the holes are closer to each other.
My advice, change it. It made a big change in flight. It now flips and rolls on axis with the new shaft. It is also faster. I did a whole writeup on he setup in the 3G forum. I cannot search it properly since I am using my iPhone as I type this.
which links do you use?
fbl 550 links? are they the same diameter or smaller because the 600fbl links i believe are bigger than normal 600
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Old 12-11-2010, 12:27 PM   #13 (permalink)
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ALIGN 550EFL Linkage rod(A) set H55047 on the 600 if you use the ALIGN 600FL Main Shaft HN6118. The end links are the same sizes as the 600 FBL links I didn't have to change anything else. Yes the FBL links are bigger than the stock 600 links.
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Old 12-11-2010, 03:16 PM   #14 (permalink)
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Mikado has linkage rods in various lengths, 5mm increments, IIRC.

I have modified the standard head to be 10mm lower and will try that together with the shorter shaft. Hope i will still have enough clearance to be safe from boom strikes.
I might be wrong, but i think the lower disk has improved performance.

Thorsten
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Old 12-15-2010, 10:12 AM   #15 (permalink)
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Quote:
Originally Posted by cklking View Post
ALIGN 550EFL Linkage rod(A) set H55047 on the 600 if you use the ALIGN 600FL Main Shaft HN6118. The end links are the same sizes as the 600 FBL links I didn't have to change anything else. Yes the FBL links are bigger than the stock 600 links.

decided to tried this out. i got one question before i get them in the mail. do i do the linkage rod as discribe in the 550 owners manual. i mean the distance between the links?
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Old 12-17-2010, 07:17 AM   #16 (permalink)
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decided to tried this out. i got one question before i get them in the mail. do i do the linkage rod as discribe in the 550 owners manual. i mean the distance between the links?

I shorted my links 10mm and they were prefect. That's how much shorter the head is. Charles
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Old 12-17-2010, 10:48 AM   #17 (permalink)
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I shorted my links 10mm and they were prefect. That's how much shorter the head is. Charles

ok, i feel stupid . 10mm shorter shaft equals 10 mm shorter links. duh. funny how the simplest stuff i over look. thanks Charles .
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Old 12-18-2010, 12:39 AM   #18 (permalink)
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ok, i feel stupid . 10mm shorter shaft equals 10 mm shorter links. duh. funny how the simplest stuff i over look. thanks Charles .
No problem glad I could help. Charles
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Old 12-25-2010, 03:49 PM   #19 (permalink)
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Will the FBL shaft stick out enough at the bottom to reach the third bearing block ?
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Old 12-25-2010, 04:26 PM   #20 (permalink)
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If you shorten the whole head by 10mm, don't you run a higher risk of a boom strike, esp. if you are using gray dampeners? Just curious.
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