1/2 hour rearranging the sheet parts on the storage rack to get the wing skins out. 1 1/2 hours marking the hole layout on the sheets. 1 1/2 hours drilling the holes. 1/2 hour cutting the inboard and outboard edges to shape, plus removing the clecoes from the sheets. Did both at once by clamping together and drilling through. 840 holes for the work of 420.
Drilling in process.
Drilling in process.
Prelude has moved on, so fuselage may not need to be tied to ceiling.
