Final measure

, originally uploaded by tobyanscombe.

This is the final measure before I start hacking away with a grinder...

The top line is the max height of the repair panel when fitted.

The middle section is the overlap area which will have a step formed in it to attach the new panel.

The bottom section is the scrap material

, originally uploaded by tobyanscombe.

This is the fitted up repair panel showing where the max line is derived from.

As you can see, the underside of the back of the wing is not in good nick!