© 2008 Stevens AeroModel.
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6.
Locate the 1/16 in. ply former F5 (sheet 20/21) and dry fit to the central crutch as illustrated below. Again, pay
attention to proper top side and forward orientation.
7.
1/16 in. ply part G1 (sheet 20/21) key to center crutch assembly as illustrated below. Tack glue G1 to the F3
former to assist with retaining this part.
8.
Key the completed central crutch assembly to one of the FS 3/32 in. fuselage sides and bond with thin CA glue
at tab and notch locations. Next install the F1 firewall to the fuselage assembly observing proper top and front
orientation and bond to assembly using thin CA glue. Complete step by joining the second FS fuselage side to
the opposite side of the central crutch. With full access to central crutch, fuselage sides, and F1 firewall now is
the best time to build up a solid glue fillet (use medium gap filling CA) where F1 meets the crutch and fuselage
sides.
