Aeronautics

Aeronautics

The branch of science that deals with flight aerodynamics and with the operation of all types of aircraft.

Industry: Aviation

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Aeronautics

Parting film

Aviation; Aeronautics

A layer of thin plastic material that is placed between a composite lay-up and the heating blanket. It prevents the blanket sticking to the fabric.

Epitaxial layer

Aviation; Aeronautics

A layer of semiconductor material whose crystalline orientation is the same as that of the substrate on which it is grown.

Sight line

Aviation; Aeronautics

A line, drawn on a sheet-metal layout, one bend radius from the bend tangent line. The sight line is placed so it is directly below the nose of the radius bar in a leaf brake. When the metal is ...

A linear fluid power (hydraulic or pneumatic) actuator that uses fluid to move the piston in both directions. A single-acting actuator, by contrast, uses fluid to move the piston in one direction and ...

Mould line

Aviation; Aeronautics

A line used in the development of a flat pattern for a formed piece of sheet metal. The mould line is an extension of the flat side of a part beyond the radius. The mould line dimension of a part is ...

Buttock line

Aviation; Aeronautics

A line used to locate a position to the right or left of the centre line of an aircraft structure. Buttock lines, or butt lines, are identified by their distance in inches to the right or left of ...

Phantom line

Aviation; Aeronautics

A line used on a mechanical drawing to show the location of a part that is not visible in the view shown, but is used as a reference. A phantom line is a thin line made up of a series of an alternate ...