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Flying
Grob 109
The Wright brothers flew through the smoke screen of impossibility. ~ Dorothea Brande
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G109 Tailwheel Assembly
G109 tailwheel bracket (after emergency repairs). This bracket should
be carefully inspected during each annual, particularly in the area in
the center of the bracket as cracks are known to develop. If the tailwheel
starts wobbling from side to side, feeling to the pilot much as if the
tyre is flat, then a broken bracket is likely. |
Tailwheel cavity. Heavy landing may dislodge plywood baseboard. Original
6mm bolts have tiny Allen key recess in threaded end to facilitate nut
removal should head break loose from bond. |
Main spring assembly. Bronze washer does not belong with this assy.
Dowel pin @25mm x 5mm, and splitpin, not shown.
Assemble in following order: Spring support plate (with hole closest
to circumference facing right and tailwheel facing to rear), dowel pin,
plastic washer, main spring, large stepped steel washer, 8mm steel washer,
castellated nut (compress spring slightly and support tailwheel), then
splitpin. Nut will need to be screwed down about 8 turns to reveal splitpin
hole. |
Tailwheel fork showing locations of dowel hole and splitpin hole. This
unit has been bent due to heavy landing |
Fit section with larger hole first. Note that the @6mm stud on right
must align with outer countersunk hole on spring support plate. This is
most important - it's far too easy to get it wrong and spend another couple
of hours pulling it all apart again. |
Elevator and trim control rods |
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