Posted below are the pictures of the balsa top hatch piece and the redo lite-plywood top hatch piece that i made to replace the balsa one. I felt this was necessary becuz the balsa just didnt seem to have the structural strength i need for the hatch. This top hatch is going to be removable and will be held on with a tapping screw/nylon bolt that goes into a 1"x0.5" piece of balsa behind F3. This makes it very easy for battery access and quick change of the battery at the field.