Fuselage Side Former; Fuselage Bottom Former - Rans S-7S COURIER Text Manual

FUSELAGE SIDE FORMER

(AFTER PRIMING OF FUSELAGE FRAME/ BEFORE COVERING)
8. Each fuselage side uses 3 formers to support the fabric. Refer to FIGURE
01-08 for the proper location of each side former. Determine the length of
each former, mark and check fit before cutting from provided raw stock.
Note that there are two different diameters of formers (1/4"and 1/2").
9. Start with the lower aft side formers. These are made from 1/4" tubing
and are retained by a set of welded stubs that the formers will slip over.
With the 1/4" formers cut to length, slightly bow the former to allow it to
slide over the retaining stubs. It may be necessary to drill out the ends of
the former to allow it to slip over the stubs.
10. Drill a # 40 hole through the former just beside the fuselage tube at station
3 as shown in FIGURE 01-08.
11. Add anti-chafe tape around the fuselage frame and safety wire former in
place.
12. The upper and center aft side formers are fabricated from 1/2" diameter
tubing. Both formers are attached with rivets from the inside of the
fuselage through welded attach tangs. Refer to FIGURE 01-08. NOTE:
Both formers are spaced at station 4 with plastic washers. You should use
as many washers as needed to achieve a smooth flow of the former.
Typically 3 to 4 washers will be required.
13. Fit, mark, check and cut the formers to length. Drill to attach tangs, cleco,
deburr and rivet. Do not forget the spacer washers.

FUSELAGE BOTTOM FORMER

(AFTER PRIMING OF FUSELAGE FRAME/ BEFORE COVERING)
14. The bottom former is made from 1/2" diameter raw stock tubing. Refer to
FIGURE 01-14. It is routed along the fuselage bottom center from the
main gear truss back to station 4.
15. Fit, mark, check and cut to length. Add anti-chafe tape around the
fuselage frame. Locate and drill #40 holes through the former. Refer back
to FIGURE 01-14. Drill, rivet, and safety wire in place as shown.
01-02
09/01/2014