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X
11-21-2005, 01:41 PM
What is the cause for the flybar bended down evenly both size? Using V 95mm paddles.

Thanks,
x
DavidH
11-21-2005, 02:27 PM
Never seen them bend down in flight. I have seen them bend downward towards the mechanics from a hard landing.

David
Harts
11-21-2005, 04:06 PM
They just bend for some reason. I think this is why MA now have the updated flybar carrier. One thing to be super careful of is if you bent it back straigh it may snap in flight, I had this happen and caught 2 just before they snapped so in the end I just left them bent until I changed them.
X
11-21-2005, 04:11 PM
David,
Sorry, I mean it is bend down after flight and never do hard landing on this one.

Thanks,
EricLarson
11-21-2005, 04:15 PM
Normally they do not bend down but I am sure not saying it could not happen.

The new flybar carrier is the answer to all of the flybar issue we have been dealing with over the last few years.

Even with a brand new flybar I would bend it in 1 flight and have random failures between 10-50 flights before. Now the flybar is straight and no faliures.

Even 5mm flybars are prone to the same failures due to the stress points on the flybar carrier. If there is a stress point there is bound to be a fatigue failure. The new MA carrier eliminates the stress points and also as a added bonus keeps the paddles flying more true.

Nothing wrong with the old system, but it was just not designed for the radical 3D flight and our masively powerfull .91 motors.
X
11-21-2005, 04:34 PM
Thank you for infos. I guess I have to buy new flybar carrier. Do you guy have the part number? Is this will fit both Tempest 3D and Extreme?

Thanks,
x
X
11-21-2005, 07:37 PM
Thanks, Got part number already.
rappyfly
11-21-2005, 08:46 PM
Even 5mm flybars are prone to the same failures due to the stress points on the flybar carrier. If there is a stress point there is bound to be a fatigue failure.

Eric

What machine did you use the 5mm flybar(only Synergy uses 5 mm rod) or any 5mm rod testing on MA machine?

Thanks

D
EricLarson
11-22-2005, 11:29 AM
A lot of testing was done. The reason for the failure really has nothing to do with the material strength but it is a fatigue failure. The flybar running right on the inside race of the carrier bearing creates a problem. Some inside bearing races are better than others (for several reasons) but they all leave stress risers on the flybar material.

Some thought that the wrap around carrier also would be a good fix. This is not really true as I know a very well known pilot that claims he breaks flybars even faster in that style of carrier.

All I really know for sure is that the problems vanished when the carrier was introduced. I sure am glad that the flybar issue are gone on the MA machines as flybar failures suck big time.