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T-REX 450 › Help, blades won't track!
09-16-2007 01:24 AM  10 years agoPost 1
studmanbri

rrApprentice

Garden Grove, Ca.​United States

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My blades are very hard to get to track, but when i finally get them to, when i pull back on the cyclic the blades make a bogging sound and the blades come out of track and get a bit wobbly. Anyone know what the problem is? I think the head is set up well enough, I don't have a swash leveler but the swash, bell arms and see-saw are level.

When in doubt... Punch out

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09-16-2007 01:45 AM  10 years agoPost 2
T-Rex-Flyer

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Panama City, Fl

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What blades are you using? You might consider changing the type of blades and see if clears up. Also go ahead and change out you're dampeners.

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09-16-2007 01:50 AM  10 years agoPost 3
cowboychris

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Pittsboro, NC,​United States

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Many times the "woodies" just won't track right. I have found that they change over time as well. One day they track, they next day they don't, etc. The wood is just too soft. Go to carbon blades and your tracking problems will go away.

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09-16-2007 02:39 AM  10 years agoPost 4
studmanbri

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Garden Grove, Ca.​United States

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Thanks, I just changed the dampeners thinking that was it. I'll thy changing out the 325 woodys.

When in doubt... Punch out

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09-16-2007 03:05 AM  10 years agoPost 5
eggmcmuffinplz

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replace ur swashplate it might have bent. good luck

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09-16-2007 03:20 AM  10 years agoPost 6
studmanbri

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Garden Grove, Ca.​United States

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Didn't work! I tried another pair of blades that i've flown before and know work. The bird is still doing the same thing. It's like the tracking changes on it's own while the blades are moving; and when i add more than fifty percent cyclic in any direction the blades track so bad that they make a bogging sound like Whaaaoooooo...
Weird ha!

When in doubt... Punch out

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09-16-2007 03:47 AM  10 years agoPost 7
cowboychris

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Pittsboro, NC,​United States

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Have you checked your spindle? I bet it has a bend in it. The blades track straight until the spindle rotates in the dampners and then the blades untrack.

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09-16-2007 03:53 AM  10 years agoPost 8
studmanbri

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Garden Grove, Ca.​United States

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I checked the spindle it's fine

When in doubt... Punch out

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09-16-2007 04:11 AM  10 years agoPost 9
Griffo

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Melbourne /​Canberra, Australia

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Check your control linkages. Sometimes the plastic ball links don't get a good hold on the threaded rods and will slip up and down, which inevitibly changes the tracking.

I had this problem recently. Get the blades balanced and and then apply some CA or Epoxy to the rods.

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09-16-2007 04:22 AM  10 years agoPost 10
studmanbri

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Garden Grove, Ca.​United States

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one step ahead of you, linkages are tight.

When in doubt... Punch out

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09-16-2007 04:24 AM  10 years agoPost 11
studmanbri

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Garden Grove, Ca.​United States

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The only real difference between now and when the blades tracked is after my crash (not a bad one: main shaft, feathering shaft, blades) i replaced the normal blade grip spacers with the thicker 3d spacers.

When in doubt... Punch out

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09-16-2007 05:37 AM  10 years agoPost 12
Griffo

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Melbourne /​Canberra, Australia

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Have you tried to put pressure on the blades with your hands. It might be a good way to see where the problem is. It sounds like something is slipping.

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09-16-2007 07:28 AM  10 years agoPost 13
RICHW

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Cupertino, CA

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Make sure the balls in the grips are tightened securly. It doesn't take much play to cause this problem

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09-16-2007 01:56 PM  10 years agoPost 14
Morris

rrApprentice

Hong Kong

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May be silly, but does it go out of track at all head speed or only at high rev? What blades are you using/used/already tested? May be you wanna go back to basic, take the blades off, lock down the bird and spin up the rotor head to check if anything bent.

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09-16-2007 10:47 PM  10 years agoPost 15
studmanbri

rrApprentice

Garden Grove, Ca.​United States

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I found the problem; it was a loose ball link on the swash plate connecting the long pitch rod. It's tight now and flys fine. Thanks everyone!

When in doubt... Punch out

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09-17-2007 12:13 AM  10 years agoPost 16
Griffo

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Melbourne /​Canberra, Australia

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NICE

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T-REX 450 › Help, blades won't track!
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