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10-28-2006 03:16 PM  12 years ago
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cgheli

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South Florida-USA

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Scary find after flight
I was out thrashing my 50 yesterday, Tick tocs, inverted hovering, flips, stall turns and just general cranking and banking. When I got home and started cleaning the heli this is what I found! The screw is missing and the ball is still in the plastic arm. I am lucky I did not crash.

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10-28-2006 03:19 PM  12 years ago
AlanR8

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High Crompton, Manchester. UK

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I'm amazed you didn't feel the difference in flight!

The one consolation is the elevator is a push pull type arrangement but the support wasn't there at the front of the swash!
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10-28-2006 06:43 PM  12 years ago
Yug

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UK. Herts

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I've had the M2 screws backout on the TT swashes, SCARY, thats why I switched to QuickUK which use M3 threaded balls.Vegetable rights and Peace
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10-29-2006 12:04 AM  12 years ago
JuanRodriguez

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The Villages, Florida

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Are you sure that's not a Century swash ?? I hear they're known to fall apart !!
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10-29-2006 01:12 AM  12 years ago
cgheli

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South Florida-USA

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It better not be, It was in the R50V2 kit
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10-29-2006 01:17 AM  12 years ago
JuanRodriguez

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The Villages, Florida

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10-30-2006 01:52 AM  12 years ago
Slowroll90

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Brookland RC Club

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its not surprising though because those peices are under lots of stress
scary though
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10-30-2006 08:58 AM  12 years ago
ChristianM

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Oslo, Norway

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I have almost had the same thing happened to me. The only difference was that I was using the aluminum A-arms and the threaded shaft that holds the link broke. That is why I love the four point support of the swash plate, it provides redundancy and stability.

Christian
Burn fuel, be happy
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10-30-2006 02:04 PM  12 years ago
cgheli

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South Florida-USA

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Does anyone know the part number of the missing screw and where I might be able to order it? It is the full metal swash from TT that came in the kit.
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10-30-2006 03:22 PM  12 years ago
JuanRodriguez

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The Villages, Florida

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cg,
Not sure you'll be able to buy just a screw, but you can use a 2mm shcs in its place and any extra ball you might have laying around...

Make sure you check that the threads in the swash are not stripped, use a pipe cleaner dipped in acetone to clean out the hole, clean the new bolt with acetone and use a small amount of blue (non permanent) loctite...

While you're at it, do the same with the remaining balls on the swash. If one was "loose", you can bet others will follow suit...
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10-30-2006 03:35 PM  12 years ago
Tday

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Needham, MA

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I agree with Yug. I had a similar experience---though I noticed the elevator get sloppy since it was a 90, more force/weight/etc. With the TT design, the swash becomes a point of failure---not just wear. It's nice when the link balls are tight and on, but... The QuickUK threaded balls are there for the duration---very nicely done.

Tom
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10-30-2006 04:48 PM  12 years ago
w.pasman

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Netherlands

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Good! Another plus of the raptor mCCPM over eCCPM, I think with eCCPM you would have crashed immediately.
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10-30-2006 06:54 PM  12 years ago
workerant

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MN - USA

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You lucky dog! My only crash this season was my 2 day old Rappy 50 taking a nose dive when the A arm popped off. It came off though because I didn't realize there was a right way to go on, and a wrong way. Big hole/little hole. *sigh* At least you didn't loose control.Raptor 90, Raptor 50
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05-04-2007 02:39 PM  12 years ago
cgheli

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South Florida-USA

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This happened last year at the end of the season. I found the correct screw and installed it before winterizing my heli. This summer I started flying again and if you notice, I did not mention loctite in my first sentence. It appears that a screw will stay in place for three flights without loctite then it will try to wreck your day. Thankfully I was able to get it to the ground with no damage. I started inspecting everything and also felt a notchy feeling when I turned the blades. I found the tail pin half way out and eating away at my tail gearbox. Last week my glow plug popped out and I had to auto in. All this has opened my eyes to taking better mechanical care of my heli on a regular basis. I tend to grab my heli when I get the chance to fly and just run to the field, fuel and fly. Not a good practice.
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05-04-2007 03:14 PM  12 years ago
rcmike

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Dickson, TN

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I had one of the screws on the inner part of the swash back out on me. It locked up the swash and broke all of the links going to the head. I had absolutely no control of the cyclic or collective. Luckily I was right side up so it slowly lowered itself to the ground. No damage besides the linkages to the head.
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05-04-2007 04:35 PM  12 years ago
link

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Gautier,ms

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Swash
Loctite is a wonderful thing. It will make or break your day and your pocket.
Enjoy the day for we know not what tomorrow holds
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05-04-2007 04:40 PM  12 years ago
mickeyapples

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England

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This is one thing on my check list after i found one looseLive life on the edge. Stand next to me when I am flying
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05-04-2007 05:29 PM  12 years ago
Tday

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Needham, MA

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The issue with the TT swash and that screw is beyond a locktite one. The swash ball is best if a threaded standoff rather than a ball with a screw through it. You can buy them as replacements or the Quick UK swash uses them. That screw has been known to break---the swash is always active. If I find the link for the standoff's I'll post, but I think I got mine at heliproz.

Tom
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05-04-2007 08:16 PM  12 years ago
Yug

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UK. Herts

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QuickUK do them in 3 sizes, 4, 6 & 8mm standoff. 5 per pack
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05-04-2007 09:04 PM  12 years ago
Ben-T-Spindle

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Central Illinois

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Another advantage of a mechanical mixer over eCCPM.... BTS
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