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Ark › flight that never was
02-06-2006 11:07 PM  12 years agoPost 1
robl45

rrKey Veteran

Deerfield Beach, FL

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Went to fly my x400 tonight and I spooled it up and just started spinning around. I had the gyro working fine before so I'm not really sure what happened. It did break the tail pitch slider though. What are my options for this? The local LHS has all the trex parts in stock or damn near close and the other hobby shop near by has some x400 parts. Can I get trex parts?

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02-07-2006 01:03 AM  12 years agoPost 2
GAPwmu

rrNovice

Cincinnati Ohio

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i would switch to the trex xl tail pitch slider assembly. I would also either change to aluminum tail rotor hubs or and trex xl tail rotor hubs.

Greg

It's only rocket science.

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02-07-2006 01:07 AM  12 years agoPost 3
robl45

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Deerfield Beach, FL

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and is that just a straight conversion? Right now one of my rotor hubs flew off the heli tonight, maybe that is why the pitch slider broke. I can't tighten it all the way into the aluminum housing or it won't move and ive sanded and tightened till I'm blue in the face

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02-07-2006 03:38 PM  12 years agoPost 4
GAPwmu

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Cincinnati Ohio

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yes, it was a straight conversion for me. As for tightening into the rotor hub, make sure you use lock tite. That is extremely important, especially anywhere there are metal screws threading into metal. I can not tighten the rear blade rotor grips until they are absolutely tight against the rotor hub. I tighten them until it stops.

greg

It's only rocket science.

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02-07-2006 10:25 PM  12 years agoPost 5
enginetorque

rrApprentice

North Wales

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tail pitch `
I would go for the new ARK pitch slider - redesigned now with hinges MUCH better job

two pumps and a squirt

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02-07-2006 11:13 PM  12 years agoPost 6
robl45

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Deerfield Beach, FL

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I got the trex xl pieces. That is what the local store had, they look nice.

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02-08-2006 01:12 AM  12 years agoPost 7
leejax01

rrVeteran

Jax. Fl.

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Spinning...
If it spun around, then probably reverse direction on the gyro or see if the slider was jammed on one side or the other on the tail shaft. It needs to be roughly in the middle of the shaft as the horn adjustments provide.

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02-08-2006 01:18 AM  12 years agoPost 8
robl45

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Deerfield Beach, FL

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yea, I swapped the gyro and servo. Someone told me to flip the blade grips on the x400 which I did, they never said about reversing servo or gyro or maybe I didn't notice that part. I think thats why it spun. Got the new parts on and will hopefully try it tomrorow. The trex xl parts are 10X better than the ark parts. One of my ark blade grips would not spin well no matter what, this trex grip spins with no hassles.

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02-08-2006 01:51 AM  12 years agoPost 9
celihopter

rrApprentice

Planet Earth first on the left..

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Take the TREX XL tail pitch slider (double fork design).
It is plastic but works perfect. I have mine working for 11 hours trouble free with virtually no increase in play. The double fork is the secret – it takes all the play out. I think the ARK metal tail pitch slider still only attaches to the bell crank on one side of the shaft. That causes play in short time. The slider can tilt.

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