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04-21-2009 04:51 AM  9 years agoPost 1
jeff1

rrApprentice

Ottawa, Ontario, Canada

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Not a great day of flying today. Was really starting to enjoy my new Rave. Had about 10 or 12 flights on it and the tail blew up in flight. Good thing I had been practicing autos recently as I was able to minimize the damage to the flybar in addition to the tail parts that will need to be replaced.

Post flight analysis - looks like the bearing on the left side of the tail (the side with the pivot for the belcrank) self destructed. When the bearing went, the tail shaft bent about 30 degrees. Also broke the front torque tube gear. The pitch slider has also come apart - not sure how to fix it since it comes from the factory pre-made. It may not be worth fixing as the "wheel" on the pitch slider is a little bent. The left side of the tail box is also going to have to be replaced since it comes preassembled with the bearing which blew up.

Going to post some pictures later.

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04-21-2009 12:24 PM  9 years agoPost 2
jeff1

rrApprentice

Ottawa, Ontario, Canada

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Never actually had a bearing blow up in flight before. It gets your attention real fast.

Anyways, some shots of the damage:

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04-21-2009 12:28 PM  9 years agoPost 3
hootowl

rrProfessor

Garnet Valley, Pa.

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That's an unusual event. Hard to say what the reason was. Could have been a bad bearing or a bad fit. Could have been a build error or and electronics/setup issue.

Just be sure when you put it back together an existing issue doesn't cause it to happen again.

Love my Rave!

Wolves don't lose sleep over the opinions of sheep

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04-21-2009 01:28 PM  9 years agoPost 4
Carbon Copter

rrVeteran

USA

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What was your head speed? maybe it was on the high end and thus tail spinning way too fast causing destructions. Either that or something worked loose into it.

~oo~ Stop fogging up my glasses

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04-21-2009 02:02 PM  9 years agoPost 5
Sky Dancer

rrVeteran

Bryan, Texas

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jeff1,

Was the bearing still in the side plate after the crash?

It looks to me like the bearing might have been pressed in from the outside of the side plate (on the raised area side). Have you ever rebuilt the tail rotor after a crash?

The only reason I mention this is because after a crash at Corpus Christi this year I witnessed a tail rotor being rebuilt and the bearing was being installed on the wrong side of the side plate. It was being inserted in the side plate on the raised side (which points outward) and that will allow the bearing to come out in flight. (See step 4-1 in the manual)

Remember, each bearings "flange" must be on the inside of each side plate (on the assembled TR) to be correctly installed (trapped inside the assembly) and unable to come out.

Could be you just got a part that had the bearing pressed in from the wrong side?

Don C

Keep up your rotor speed !

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04-21-2009 03:01 PM  9 years agoPost 6
inkspot1967

rrProfessor

Cranston Ri

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get a hold of brian at CYE 979-828-4269

CYE has the best support out there and im sure they will take care of you

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04-21-2009 04:37 PM  9 years agoPost 7
Buzzin Brian

rrProfessor

College Station, Texas

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Thats a first. While I can say I have seen a bearing come appart in the past, I have never seen it happen in a Rave at any location. The bearings have actually held up quite well throughout the entire machine overall. However there can always be that one rogue bad apple bent on world domination. It might not have been the bearing that caused this issue. Something else could have came loose or locked up and the vibration destroyed the bearing. It looks as if there are screw marks in the pitch slider ring from screws. This would indicate that the screws that mount the bearings to the tail control arm we sticking out. The correct screws set flush with the bearings and should not stick out far enough to contact that part. But again this could have all happened at the same time. Call me, I will get you taken care of.

(979)779-2172

Brian

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

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04-21-2009 04:42 PM  9 years agoPost 8
inkspot1967

rrProfessor

Cranston Ri

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However there can always be that one rogue bad apple bent on world domination.
thats funny sh!t right there.....lol

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04-21-2009 10:44 PM  9 years agoPost 9
jeff1

rrApprentice

Ottawa, Ontario, Canada

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Called Brian. He's going to fix me up with the parts I need to get back in the air. That's what I call good support.

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04-21-2009 10:54 PM  9 years agoPost 10
Wingman77

rrProfessor

Pulaski Tennessee

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brian is the best for sure!

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05-01-2009 12:43 PM  9 years agoPost 11
jeff1

rrApprentice

Ottawa, Ontario, Canada

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Got my spare parts yesterday.

I can get down to fixing and hopefully having my Rave flying again this weekend. Again, many thanks to Brian and Curtis Youngblood Enterprises for supporting their product in such a wonderful manner.

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