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T-REX 450 › 200mm vs 220mm flybars?
06-07-2009 10:15 AM  8 years agoPost 1
LaurenceGough

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UK

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Hi guys,

Couldn't find much info searching.

Just wanted to know the actual flight differences between 220mm flybars and 200mm ones. (it would be great to hear from pilots who have used both)

I hear the 220mm is faster and more stable. I'm just after faster cyclic really.

I'm worried about any negatives such as it bending in hard cyclic manoeuvres or anything else (I hear it might draw more power?).

Thanks for any help!

Laurence

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06-07-2009 10:41 AM  8 years agoPost 2
duceduc

rrKey Veteran

Saitama-Ken, Japan

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The shorter the flybar, the quicker the cyclic. You lose stability though.

Duc S
Do It! Do It!™
AMA:REVOMIX
RCK:24005615-01

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06-07-2009 01:18 PM  8 years agoPost 3
Heli 770

rrProfessor

USA.

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Google, Colin Mill's Practical Theories articles.

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06-07-2009 02:20 PM  8 years agoPost 4
bah7566

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Colorado

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I hear the 220mm is faster and more stable.
You said it yourself and it is true. If you want faster cyclic use the 220 fly-bar.

I am a Heli addict!!!

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06-07-2009 03:19 PM  8 years agoPost 5
LaurenceGough

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UK

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Thanks guys, well funnily enough I've found a 220mm flybar from my other 450 (Falcon 3D). I was a little bit unsure about using it but it doesn't seem to flex no more than my 200mm one and the paddle threads are the same.

Will report back tomorrow hopefully.

I really do wonder why they still sell the 200mm ones, like there is something I'm missing.

Sucks because I have about 14 or so 200mm flybars!

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06-07-2009 03:26 PM  8 years agoPost 6
bah7566

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Colorado

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I am not positive but I believe that the 200 came out with some of the first Trex 450's. Later they started making the 220 for a quicker cyclic and now most if not all of the kits come with the 220 fly-bar rods.

I am a Heli addict!!!

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06-07-2009 06:45 PM  8 years agoPost 7
mattconn24

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Smyrna,Tn - USA

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correct me if i am wrong but it was my understanding that the long the flybar the more stable the bird but you loose speed in your cyclic. The shorter the flybar the less stable the bird, but you get faster cyclic.

I was flying the 220mm flybar for a long time and i couldn't get my bird to flip or roll fast enough. Which i changed to the 190mm flybar my bird's flip and roll rate increased greatly. Once again correct me if I am wrong.

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06-07-2009 11:00 PM  8 years agoPost 8
bah7566

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Colorado

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mattconn24,

You are incorrect, I used to think like you do about the flybar length but have since learned otherwise. Here is a great article and it covers flybar length about halfway down the page. Now it all makes sense.

http://w3mh.co.uk/articles/html/csm9-11.htm

Longer is faster.

Bruce

I am a Heli addict!!!

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06-08-2009 11:47 AM  8 years agoPost 9
LaurenceGough

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UK

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Well guys, after 4 flights I can say that cyclic rates are faster now without loosing anything else. A improvement for sure.

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T-REX 450 › 200mm vs 220mm flybars?
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