I
NTRODUCTION
The airframe consists of the following main groups as shown in figure C-1:
1) W
INGS
2)
F
USELAGE
3)
E
MPENNAGE
4)
L
ANDING GEAR
5)
P
OWERPLANT
F
IGURE
C-1
M
AIN GROUPS
1. WING
Each wing is connected to the fuselage by means of three pin attachments.
Wings are made up of a central light alloy torsion box (1); a light alloy leading
edge (2) is attached to the front spar (5), while flap (3) and aileron (4) are at-
tached to rear fake spar (6) through two hinges each.
The torsion box, as shown in figure C-2 and with reference to numbers in paren-
thesis, consists of a main spar (5) and a fake spar (6) that make up its front and
rear vertical walls; A series of ribs (7) and wrap-around panels complete the
structure. Front and aft spars are complete with wing-to-fuselage attachment fit-
tings (8). Aileron uses "piano-hinges" type MS 20001-4 for direct attachment of
aileron spar to wing spar. Flap hinges are external to wing torsion box and feature
SKF GE10E type ball bearings.
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