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HomeAircraftHelicopterHIROBOOther › flybar less?
04-03-2005 12:49 AM  13 years agoPost 1
helihi

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edgewood, maryland

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what will happen if i take my flybar off??????? i have a evo50/hyper.

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04-03-2005 12:53 AM  13 years agoPost 2
white chocolate

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Baltimore, Md.

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lol why would you want to do that?

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04-03-2005 03:41 AM  13 years agoPost 3
helihi

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edgewood, maryland

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to make it look better and i like to do things diffrent. one day im going to put a hawk sport conv. to a 50 size. has any body conv. to no flybar and how did you do it???

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04-03-2005 03:54 AM  13 years agoPost 4
AndyH

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Rockledge, FL

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try it - then come back and tell us how well it flies.

Oh - Take a garbage bag with you. (you'll need it for the pieces!)

There are flybarless head designs out there, but simply removing the flybar from a design that has one is a quick way to destroy your heli.

So - have fun being different

This hobby is like Kryptonite to chicks!

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04-03-2005 04:04 AM  13 years agoPost 5
jkelly

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Bedford, PA

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What would be more fun is trying to fly without a gyro!

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04-03-2005 04:20 AM  13 years agoPost 6
mwp

rrApprentice

Chatham, Ontario, Canada

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If you modify your helicopter to remove the flybar you will loose a significant amount of stability and the cyclic will probably become very sluggish without some major changes to the control system.

Had an in flight failure of the washout/flybar system at one time, luckily I was able to bring the heli down in one piece. Quite a change in handling!

The GMP Legend had a flybarless 2 blade head years ago. It had some odd behaviors and could be scary at times.

Just some random thoughts.
Mark

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04-03-2005 05:47 AM  13 years agoPost 7
Hovergirl

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Milwaukee, WI

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I had a flybarless legend years ago, as I recall it flew very well. The only odd behavior it had was, when you were doing a normal approach to a hover it would pitch up some and slow down, you had to keep forward stick in it.

I also converted a Shuttle ZX to a flybarless head, that project was less than successful. It responded RIGHT NOW to even the tiniest control input. As I recall I had to turn down the dual rates quite alot to even be able to hover. It flew but I'd have to say I would not recommend it. Although to be fair I only flew it that way once.

I used a swashplate driver from a Hirobo Llama. and just removed all of the flybar parts. Then ran the pushrods straight from the swashplate to the blade grips. Also heavy blades as the Legend used.

I would also like to note that the Legend was designed for a flybarless head and had mechanism to reduce the control to the head. Look at a photo of a Legend, you will see what I mean.

On a side note I recently found a video I have from GMP showing their line of helis as well as the Legend.

hope this helps,
Kandace

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04-03-2005 12:37 PM  13 years agoPost 8
mwp

rrApprentice

Chatham, Ontario, Canada

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Yes, forward stick to keep the nose from coming up on a descending approach to the landing area. I also recall a strong nose down pitching if the collective was aggressively dropped at the entry of an autorotation. Nothing you wouldn’t get comfortable with, just that it had better manners with a flybar equipped head. Looked much better without it though.

I think the sluggishness I experienced with the in flight failure was due to the loss of the boost effect of the Hiller control paddles while the pitch linkages still operated through the mixing arms and seesaw.

Forgot about the need to reduce control travel if directly connected to the main blades, the Legend had a mechanical reduction and a geometry change with a push rod pivot at the base of the rotor head. That should be clear as mud, guess you need to find that photo.

Good luck with the experiment should you choose to proceed. Always something new to be learned.

Mark

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