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HelicopterHIROBOOther › Sceadu blade split...
05-06-2005 12:58 PM  12 years agoPost 1
Slade

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Karachi Pakistan

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Hi,
Can someone please tell me why in tarnation the blades on both my Sceadu 50s are splitting in flight?Tracking is alright to start with and then during flight the blades go out of whack.blades a re standard frp.Wondering whether ive assembled the thrust bearings in the blade holders correctly.....also when you lift either blade up there is play between the blade holders and the bearings.
Any ideas fellows??

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05-06-2005 01:12 PM  12 years agoPost 2
Dr Lodge

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Guildford, Surrey - UK

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when you lift either blade up there is play between the blade holders and the bearings
you just answered your own question.

Vibe 90, Vibe 50, Vigor CS x2,
Dyna-x, Knight 503D, Logo 10,
TRex 500, Furion, Gaui EP200

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05-06-2005 01:45 PM  12 years agoPost 3
bald eagle

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detroit michigan

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one other thing to look for is a bent head spindel if one is slightly bent it make blade tracking impossible you can check buy removing one of the baldes and while the whole assembly is together spin one of the allen screws and watch to see if one one of the blades grips wobbles while you are spinning the bolt if it dose its bent

thanks jeff

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05-07-2005 06:26 PM  12 years agoPost 4
999R

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I have encounter this problem before, 1st check the spindle. 2nd check your pitch system, if the push n pull system has a slight free play, it can cause this problem. 3rd check blade grip n damper.

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05-09-2005 05:20 PM  12 years agoPost 5
Slade

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Karachi Pakistan

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Thanks guys, blade grip play on another friends machine is not causing him any tracking probs,spindle and dampers already checked, will check pitch mechanism to remove doubt.
Is anyone else out there getting the feeling this machine is not as reliable as the good old Shuttle???

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05-10-2005 03:31 PM  12 years agoPost 6
MrDHEJ

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Taylorsville, Kentucky, USA

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A bent hub will also cause the blades to go out of track, as well as a bent main shaft.

BTW, is this an older sceadu or and EVO? The older sceadu's would wolf n' poof with some blades.

Never go full retard!

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05-12-2005 09:34 AM  12 years agoPost 7
Slade

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Karachi Pakistan

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This is the older one,got the new one as well,hpm version.Both machines are acting smart.Got time to check the thrust bearings inside blade grips last nite assembled ok,damper rubbers ok,spindle ok,main shaft ok linkages ok,the only thing left are the rotors.Got a new pair of NHPs have a feeling they might sort out the prob.Present blades are original Hirobo frp.(friend had them warp on him once,maybe one of them is warping in flight?)
Anyway thanks to all for their time, effort to answer my post.

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05-16-2005 10:04 PM  12 years agoPost 8
Slade

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Karachi Pakistan

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Blade split...

Just thought id let you guys know,i opened up the spindle checked the thrust bearings,they were assembled ok,but i think the damper rubbers seem to be a bit too hard.Wonder if they hardened up or what?Will change em and see when i get a new set.Have changed over to a pair of NHP Razor Pro Blades.Took the machine out yesterday but it was too windy(25 kts) with sand blowin in ones face!Anyway got a flight in and shake now in just one zone as pitch changes above hover.Hopefully damper rubber change might totally fix it...??
p.s:the frp blades are also not very good.I also suspect that one of them could have been warping in flight.A friend had a pair of them turn into a propeller with warp.Hes kept em to send back to Hirobo.....

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HelicopterHIROBOOther › Sceadu blade split...
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