P92 Echo Super
Maintenance Manual
27
Revision Date: 10-29-2007
Revision Number: 3.01
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SECTION 4
AIRFRAME
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4 Introduction
The airframe consists of the following main groups as shown in figure 4-1:
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1) Wings
2) Fuselage
3) Empennage
4) Landing gear
5) Powerplant
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4.1 Wing
Figure 4-1 Main groups
Each wing is connected to the fuselage by means of two pin attachments and a single strut brace per side.
Wings are made up of a central light alloy torsion box; a light alloy leading edge is attached to the front spar (1) while flap
(2) and aileron (3) are attached to rear fake spar through two hinges each.
The torsion box, as shown in figure 4-2 and with reference to numbers in parenthesis, consists of a main spar (4) and a fake
spar (5) that makes up its front and rear vertical walls; a series of ribs (6) and wrap-around panels complete the structure.