Before drilling, the fairings have to be adjusted in all dimensions. First thing is to draw a fuselage center reference line. Two plumb bobs, a laser beam and some adhesive tape and I'm done. I did also draw two perpendiculal lines near the wheels.



Then the two fairing halves are installed. Some fine adustement is needed for the tyre en gearleg hole.
The picture shows that the fairing is not perpendicular to the ground but slightly canted and aligned with the tyre, this is due to the fact that the wheels barely touch the ground and the wheel is in the flight position.



With both fairings installed begins the alignment procedure. Both fairings need to be parrallel ans equidistant to the centerline, they must also be centerd on the tyre.



And at last, the fairings are drilled. The position of the brackets is marked on the fairings as these have to reinforced, the thickness being on the low side at these sposts.
I also mrake the cut line for the tyre opening.