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1. General .............................................................................................................................1
2. Description ........................................................................................................................1
MAINTENANCE PRACTICES ....................................................................................................201
1. General .........................................................................................................................201
2. Remove/Install the Wings .............................................................................................201
3. Bolt Play........................................................................................................................207
CHAPTER 57-50 FLAPS..........................................................................................................................1
1. General .............................................................................................................................1
2. Description ........................................................................................................................1
MAINTENANCE PRACTICES ....................................................................................................201
1. General .........................................................................................................................201
2. Remove/Install A Flap...................................................................................................201
CHAPTER 57-60 AILERONS....................................................................................................................1
1. General .............................................................................................................................1
2. Description ........................................................................................................................1
MAINTENANCE PRACTICES ....................................................................................................201
1. General .........................................................................................................................201
2. Remove/Install A Aileron ..............................................................................................201
Wings
DA20-C1 AMM
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CHAPTER 57-00
WINGS - GENERAL
1. General
The DA20-C1 has cantilever wings. The wings are set low on the fuselage. Each wing has a flap
inboard on the trailing edge. There is an aileron on the outboard trailing edge.
The wings are monocoque structure. Each wing has top and bottom shells. The shells have GFRP
skins and a rigid foam core. Each wing has an I-section spar. Carbon fiber rovings make the spar
caps. Each wing also has rigid GFRP ribs and webs.
Refer to Chapter 27 for data on the control systems for the flaps and ailerons. Refer to Chapter 51
for general repair data.
Wings
DA20-C1 AMM
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CHAPTER 57-10
WING STRUCTURE
1. General
The DA20-C1 has composite wings. The main spar has carbon fiber spar-caps. The wing shells
have GFRP skins and a rigid foam core. Rigid GFRP moldings give strength to the structure. Some
also hold control levers or bearings.
Refer to Chapter 57-50 for the data about the flaps. Refer to Chapter 57-60 for the data about the
ailerons. And refer to Chapter 27-00 for data about the control systems.
2. Description
Figure 1 shows the wing structure. Bonding paste (thickened resin) bonds the wing components to
each other. The wing has these main parts:
A. Wing Shells
Each wing has top and bottom shells. Each shell has GFRP skins with a rigid foam core. The
skins have many layers of glass cloth. Some areas have more layers to give more strength. In
most cases, the fibers in the cloth lie at ±45° to the lateral axis.
The wing has an anti-vortex tip. The aft end of the wing tip has a mounting for the position light
assembly.
The bottom shell of both wings has holes for access panels below the flap and aileron
bellcranks. The bottom shell has a hole for an access panel below the B-bolt. This gives access
to the B-bolt for removing the wings.
The outer leading edge of both shells in the left wing has a cut-out for the landing and taxi
lamps.
A stall strip bonds to the leading edge of both wings at approximately 2/3 span.
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