Monday, June 6, 2011

Undercarriage - main bolt

Level the aircraft (a self levelling laser is very useful for this)
Insert the two undercarriage legs as far as they will go into the steel housings (the curved edge faces forwards)
Retract them 5 mm (for clearance)
Determine and mark the position of the top hole. Confirm that both marks are at the same height (the laser is useful for this). This measurement will ensure that your aircraft will stand straight and not have one wing lower than the other!
The hole position is midway between the undercarriage bulkheads (fore/aft measurement)
Drill 3/8"
Fabricate suitable mild steel load spreaders as shown. Suggested material is 50 by 50 by 5mm mild steel angle cut down to 25mm width and shaped as shown. Radius the outer edges to snugly fit the corner fillet.


Temporarily bolt the legs on.

Also shown is a dolley to assist in moving the fuselage around.

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