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Pic. 1. Balsa joiner cap rib 1/16" balsa. The rear 1/2" dia. hole is for the servo wires. The 1/4" dia. hole is for lighting system wiring (tip nav light and landing lights). The vertical slotted voids are for ply joiner plates.

Pic. 2. Center section top hatch for throt. batt. and it's servo sync. (mach box or equiv.) The white filler is a mess up. I forgot to temporary put in the wing tube while I was vacume bagging the wing.

Pic. 3. Flap bays and fuel tank bays. The 3 holes are for the wires that goes into the fues.

Pic. 4. Also if vacuume bagging, you must add a 1/8" thick balsa sub L.E. to prevent crushing. Once sheeted, just add a 1/4" thk. L.E. stock and sand to shape.

Pic. 5 & 6 Once the L.E. is sanded to shape, then cut out for fuel tank bay.

Later,

Gunny

P.S. There is more on the pevious page