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HelicopterJR Heli Vibe 90/50, Sylphide 90, GSR260 › Vibe 90 Main Rotor Hub Damage
11-27-2007 09:15 PM  10 years agoPost 1
Dynamite

rrApprentice

Odessa

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Hi . Last week I crashed my Vibe 90 because of a silly mistake . I forgot the fuel level in the tank and became run out of fuel while I was executing piro flips . Engine stopped and I lost all the headspeed quickly . Couldn't auto it and the heli went inverted over the grass . Luckily there were not much damage . Even no scratches on the canopy and blades . Total damage was : Main shaft , spindle and flybar .

However , while I was disassembling the head to remove the spindle and check the bearings I saw that the center hub has a slight damage around the dampening side (you can see the damage at the photo) . I think this was because of the spindle shaft is too soft .

My question is ; Should I replace the head block ? You know its one of the most expensive parts of the Jr Vibe 90 . What problems can I have if I continue to use it ?

JR Vibe 90 , Sylphide 90 C , JR Vibe 50 , JR AS 50 , T-rex SE V2 , Raptor 50 Titan

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11-27-2007 11:41 PM  10 years agoPost 2
Thuvanduc

rrApprentice

Salt Lake City, Utah

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I think it's just cosmetic issue there. I would re-install with new oring and spindle and fly with it.

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11-29-2007 01:18 AM  10 years agoPost 3
Buzzin Brian

rrProfessor

College Station, Texas

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It "appears" to be cosmetic, however I would check it for run out. I have seen the head block get bent if it takes enough of a hit. This will certainly cause vibration. I am NOT saying it IS bent, but I would certainly check it before I flew with it. Also look very closely in the corners where it is machined along its length for any hairline cracks. If the runout checks out fine and there are no cracks I say fly with it, it should be ok. It looks like a metal blade grip bit into it from the spindle being bent pretty good. Seen it before.

Build it, fly it, crash it. Repeat as often as needed.

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11-29-2007 08:57 PM  10 years agoPost 4
Dynamite

rrApprentice

Odessa

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Hi Brian . Its exactly like as you described .

I think spindle shaft is too soft . The head speed was very low when the heli hit to ground . I don't think what can happen if I crashed it in idle-up .

However , I checked the head . There are no cracks . But I am not sure about the run out . I think its better fly the heli with this head to check for any vibrations .

JR Vibe 90 , Sylphide 90 C , JR Vibe 50 , JR AS 50 , T-rex SE V2 , Raptor 50 Titan

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11-30-2007 08:28 PM  10 years agoPost 5
JRjoe

rrElite Veteran

Jonesville , IN USA #1

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Looks cosmetic to me, i'd just fly it too.....


JRjoe.....
Indoor plumbing??? No, we don't need that!!!

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HelicopterJR Heli Vibe 90/50, Sylphide 90, GSR260 › Vibe 90 Main Rotor Hub Damage
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