Main Gear alignment adjustment?

Brian Jackson

Platinum Member
Joined
Jul 17, 2004
Messages
2,856
Location
Hamburg, New Jersey USA
Aircraft
GyroBee Variant - Under Construction
Greetings Beekeepers.

This weekend while waiting to have my wife's car wheels aligned I used the opportunity to think about how the same might be done on a gyro. Are there any provisions or techniques for fine-tuning wheel parallelism besides tweaking the drag strut eye-to-eye length? I can envision several small fabrication tolerance errors accumulating to throw a wheel out of track a degree or so, careful as the average builder might be.
 

eddie

RAF, turbo subaru 230hp
Joined
Jan 19, 2011
Messages
1,683
Location
Polvadera,nm 87828
Aircraft
230 HP turbocharged RAF
Total Flight Time
8,000 plus
Its no big deal brian,once the gear is built and installed there usually is no further adjustments needed with regards to track,If you land
"
the RAF hard several times the camber gets a out of adjustment the problem is the axle diameter, standard is 5/8" and it bends with hard landings

the fix is to go to a 3/4" axle it helps with the problem.the real solution is don't land hard.
 

Doug Riley

Platinum Member
Joined
Jan 11, 2004
Messages
6,312
Brian: You could clamp some long pieces of rigid metal angle to the wheels, having these lengths stick out equally both fore and aft. Take some measurements of the distances between the front and rear tips of these angles to check the toe. Measure and compare the distances from each angle tip to the keel or tail tube, to make sure the wheels don't both point off to one side. Adjust the rod ends, but leave plenty of thread inside the barrels! Shim if the rod end adjustment isn't enough.

Be happy that your 'Bee has rod-end adjustments. On a Dominator, you take the same measurements and then "adjust" the stub axles with an acetylene torch.
 
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