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Old Apr 24, 2005, 10:19 PM
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Wobbling xrb

I have had my xrb for about one month and love it. I recently had a very good crash and broke the tail and the fake engine. I super glued everything together like I have done in the past but now the heli wants to wobble when it is hovering. I have look everything over that I cant think of I do not think anything is bent because it will hover perfect for about 3 seconds before it starts to wobble. Could it be that it was not glued back perfect and it throwing off the center of balance. My blade balancer broke but it broke a week ago and I have been flying on unbalance blades and have never had a problem before. Any sugestions


thanks
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Old Apr 24, 2005, 10:38 PM
raz
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USA, CA, Eureka
Joined Dec 2004
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I would still think the blades are the problem. I would fix or replace the balancer or buy a cheap scale and weigh them to get them equal. You rechecked the blade tracking after the crash I assume?
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Old Apr 24, 2005, 11:08 PM
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pearl city, hi
Joined Feb 2005
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Correct link for Hirobo XRB FAQ

imho and personal experience, most xrb problems are not complicated...and sometimes they mysteriously go away by themselves...but here's the best advice i can give you...

Originally Posted by VRP
Try this:

http://model.hirobo.co.jp/products/0.../troubleQA.htm
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Last edited by kenhiraihnl; Apr 24, 2005 at 11:26 PM. Reason: link is corrupted
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Old Apr 24, 2005, 11:24 PM
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pearl city, hi
Joined Feb 2005
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something wrong with the previous link...don't know what happened...try this...

http://model.hirobo.co.jp/products/0.../troubleQA.htm
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Old Apr 25, 2005, 12:25 AM
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Pittsburgh PA
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check the link on the flybar/stabalizer I bet its not snapped in place
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Old Apr 25, 2005, 12:56 AM
Joe
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Baltimore, Md USA
Joined Jan 2005
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Make sure the blades aren't too tight. I've cured the swirlies by loosening the blade bolts. I keep mine loose enough that you can move them with light finger pressure. That and the addition of laminated blades has allowed me to wack many things without breakage.
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Old Apr 25, 2005, 01:22 AM
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Auburn, CA
Joined Jan 2005
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I had a similar problem to alf1096 - XRB would pop up into a relatively stable hover and then as soon as any forward or yaw motion was introduced it would go into an uncontrollable wobble.

I eventually cured this by swapping out the (well balanced, tracked and undamaged) A (top) blades... I did see mention somewhere that sometimes a pair of A and B blades will not co-exist well and that the only option is the swap in different components.

Having fixed the wobble I was still having problems with more vibration that I was happy with. Top stabiliser fly-bar looked a little bent, but not easy to straighted manually. Replaced this today and cured a lot of the vibes.

Who knows, perhaps the combo of a bent stab-bar and a pair of maverick blades is a terminal wobble in a bottle...
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Old Apr 25, 2005, 06:14 PM
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Thanks for all of the advice I will consider all of it but will not be able to try any on it untill this weekend thanks
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Old Dec 08, 2011, 08:41 PM
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United States, NC, Rocky Mt
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Is this servo new?
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