Fury Extreme: MY BOOM SLIDE OUT!!!!!!!!!!

[Kyle2Baseball]

Last weekend Iwas flying and I did some tic-tocs with a piroflip and I heard a tic type sound. So the first thing that came to our minds was that a gear had stripped so I landed. We cheched it very well at home and everything seemed to be fine.

So today I was flying and I was doing piroflips and I stop and was level and I lost tail rotor. SO I autoed it in and somehow managed to land it unharmed. But since it was still spinning the vertical fin slide a little and twisted the boom. Ya it twisted, you would think that that would break the fin. So we look everything over and we came to the conclusion that the boom slide out because the pitch slider was no linger at 90 degrees at neutral. so than my dad pused the boom back in and it make the same sound it did last weakend and than everything was catching again.

So my question is that has this happen before to anyone. If so (i wish I would have known) what can u do to keep the boom in. I know the bolts are extremly tight. I am extremly lucky that I managed to auto it in while piroetting though.

[bighands3d]

You need to CA the boom in the clamp and the gear box if your using the metal gear box. Most all the guys are doing this that fly Xtreme 3D.

you can rough it a bit with some fine sand paper for a better grip.. with the CA..

[WillJames]

Be sure to clean it very well with alcohol before you CA. Inside the clamp to.

[Kyle2Baseball]

Ya I think I am going to go with sometype glue. I wish they would put the little keys in the boom to help the turning situation. Even know there was nothing lost I will still not be able to trust the helicopter for a while when I am flying. Because it sucks when you crash due to something that was out of your hands.

Hye Baja did you make it out to Punta Gorda, I think you said you were going to try to be there.

[BobbySmith]

I had this happen 4 foot off the ground inverted FF it got ugly quick :shock:
So i took and used GOOP to put it in it! It is nice to work wiht and it holds GOOD


Bobby

[Lee Taylor]

Same story with me when I first got my Extreme (3rd flight actually!)...Was out at a new local field full of plankers, so I brought it in inverted about 2 inches off the deck, and after about 5 seconds or so of clipping grass, lost the tail...just happened to SLIDE RIGHT OUT. I jammed the collective to full negative trying to get it up and away from everyone around, and the GROUND. Got it up to about 30 feet before it decided to start tipping over, and with the piro rate like it was with no tial and full power, it a little tough to try and fly the cyclic...at least for me this early in the game. Managed to flip it over without TOO much head speed loss, but still didn't have much at the end. Enough though to slow it down A LOT. At any rate, didn't break too much. Landing gear, the frame spacer that supports the tank, blades, and a flybar. All it was, was that the boom had slid out of the clamps...everything in the back ended up okay actually. And I always pre-flight, and everything seemed tight...
So now I do like BigHands mentioned, take fine sandpaper and rough up the boom a bit, then take medium CA and lock the boom in the clamps. Haven't had a problem with it since... :mrgreen: Tough lesson learned though...At least I got it away from all spectators... :shock:

[Spitfire_mk5]

This just happened to me yesterday; guess i was a little leinent on the CA of the front adapter :( :'(

[3DME]

Hello


Here are some pictures of my solution of the boom-slide problem.
Just drill a hole in the boom grip that a 2mm screw will thread into. You will need to spot face the side the nut goes on at an angle. (I did this with a dremel tool). Assemble the tail boom on the heli and tighten the boom clamp screws. Put the 2mm drill in the hole in the boom clamp and drill through the boom. Take the boom off and drill the hole so the head of the screw will pass through. Thread the 2mm screw into the boom clamp from the inside and put a nut on the outside with locktite to keep the screw from backing out and getting into the tourque tube. Re-assemble and check to see that the tail blades are parallel to the main shaft. If not just file the hole in the boom a little( this will give you some adjustment ) The head of the screw barely protrudes into the boom so it will not touch the torque tube. The only thing is you will have to remove the four screws that hold the boom clamp on when you want to disassemble the tail boom. (same if you use CA) I came up with this after hearing stories of CA'd booms still sliding out. this will prevent this from happining.

Mike

[DavidH]

The above is a method that use to be in the instructions for installing the tail boom several years ago.
That method works fine. The part you have to be careful with is make sure the screw is not too long. I have seen couple of torque tubes cut into over the years when a too long a screw was installed.
In the past instructions the screw was inserted in the side of the clamps.

If a boom slips that has been CA'ed. I would think it was because the surfaces were not prepped correctly. The inside of the clamps and the boom need to be roughened up some with sand paper for the glue to adhere.


David

[3DME]

Hello

I believe the old instructions show the screw going in from the outside of the boom grip through the frames. My method has the head of the screw on the inside of the boom clamp and it is not long enough to hit the boom.

Mike

[DavidH]

The old method was to install the screw into the boom clamp. This was accomplished by drilling a hole in the left boom clamp thru the clamp and the boom. Then a small 2 mm screw was inserted thru the clamp and into the boom. This was done where the clamp showed thru a round hole on the top left side of the frames.

The Fury series does not incorporate this hole into the frames.

David

[3DME]

Hello

Does it work? Why did they go away from this method? It seems to be a more positive way to locate the boom.

Mike

[I3DM]

Hey David,
why isnt that method being adopted today ? it takes 2 minutes, and i think should work wonderfully.. no ?

[r2160]

One of the things we also have tried is RCV silicon.

Put the silicon onto a CLEAN boom, leave dry and then clamp up.

As soon as I can put the machine through its paces as hard as you guys, I will let you know if it slips!

Glenn