Sequoia Aircraft Corporation F.8L Falco, Construction Manual

Page: 317 / 423

l
F.8L Falco Construction Manual 26–10 Revision 4, March 1, 2002
❏
Clamp the bottom center longeron in position. See Figure 17. Until you are absolutely
certain that everything is in the exact position, there is no need to do the final sanding for
the longeron fit in the longeron cutouts.
Figure 18
❏
Clamp the top aft longeron in position. See Figure 18. Until you are absolutely certain
that everything is in the exact position, there is no need to do the final sanding for the
longeron fit in the longeron cutouts.
❏
Check the position of all fuselage frames relative to the fuselage jig. This includes
checking the level of the alignment string for W.L. 0, checking the location of the fuselage
frames fore-and aft, checking that the fuselage frames are level in the jig (use a water
level), and checking that the fuselage frames are vertical in the jig (use a plumb bob).
❏
Sand the longeron cutouts to fit the left side longeron. The other longerons should hold
the frames in position. Clamp this longeron in position when finished. Note that the
longeron must be notched for the stabilizer spars.
❏
Sand the longeron cutouts to fit the right side longeron. The other longerons should hold
the frames in position. Clamp this longeron in position when finished. Note that the
longeron must be notched for the stabilizer spars.
❏
Sand the longeron cutouts to fit the top front longeron. The other longerons should hold
the frames in position. Clamp this longeron in position when finished.
❏
Sand the longeron cutouts to fit the top aft longeron. The other longerons should hold
the frames in position. Clamp this longeron in position when finished.
❏
Sand the longeron cutouts to fit the bottom center longeron. The other longerons should
hold the frames in position. Clamp this longeron in position when finished.