Fuselage Structure - Diamond DA20-C1 Maintenance Manual

DA20-C1 AMM
1. General
This chapter describes the data about the fuselage structure. It also includes the vertical stabilizer. Refer
to Chapter 51-00 for data about repair to the structure. The DA20-C1 aircraft has the following
components in the fuselage structure:
- All of the main structural components are GFRP rigid moldings. Many layers of glass cloth
bond together to make each molding. Some components have layers of carbon cloth or tape.
This gives more strength and stiffness.
- Most components have rigid GFRP inserts. The inserts give strength and stiffness for
attaching other components such as brackets for controls.
- Bonding paste (thickened resin) bonds each component to other components. Most
components also bond to the fuselage shells.
2. Description
Figures 1 to 4 show the fuselage structure.
A. Fuselage Shells
Two GFRP shells make the outer skin of the fuselage. The shells transmit structural loads. The
shells bond to each other at the top and bottom of the fuselage. Each shell has many layers of
glass cloth. Some areas of the shell have more layers to give more strength and stiffness.
Thickened resin bonds all other structural components to the shells.
Many small components bond to the fuselage shells. These include:
- Air inlet and outlet ducts
- Conduits for electrical wires, antenna cables and fuel pipes.
B. Firewall
The firewall closes the front of the fuselage. It also holds the attachments for the engine mounting
frame. It has holes for the different systems which connect to the engine.
The firewall is a rigid GFRP molding. A special adhesive bonds a fire-resistant ceramic blanket to
the front face of the firewall. The adhesive also bonds a stainless-steel sheet to the front of the
blanket. Components which go through the firewall also hold the stainless-steel sheet and blanket
to the GFRP molding.
A GFRP extension bonds to the top of the firewall. It carries the seal for the engine cowling.
DA201-C1
Rev 16

FUSELAGE STRUCTURE

53-10-00
Fuselage
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30 Oct 09