- Industry: Aviation
- Number of terms: 16387
- Number of blossaries: 0
- Company Profile:
Aviation Supplies & Academics, Inc. (ASA) develops and markets aviation supplies, software, and books for pilots, flight instructors, flight engineers, airline professionals, air traffic controllers, flight attendants, aviation technicians and enthusiasts. Established in 1947, ASA also provides ...
A line that touches a curve at one point only and does not cross the curve.
Industry:Aviation
A line used in the development of a flat pattern for a formed piece of sheet metal. The mold line is an extension of the flat side of a part beyond the radius. The mold line dimension of a part is the dimension made to the intersection of mold lines and is the dimension the part would have if its corners had no radius.
Industry:Aviation
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 long dash and two short dashes.
Industry:Aviation
A line used to locate a position to the right or left of the center line of an aircraft structure. Buttock lines, or butt lines, are identified by their distance in inches to the right or left of buttock line zero, which is the center line of the structure. Buttock line 12R is 12 inches to the right (facing forward) of the center line.
Industry:Aviation
A line used to show the extreme position to which a part can be moved.
Industry:Aviation
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 clamped in this position, the bend tangent line is at the correct position for the beginning of the bend.
Industry:Aviation
A linear actuator in a fluid-power system that produces the same amount of force in either direction of piston movement.
The two sides of the piston in a balanced actuator have the same area for the fluid to push against.
Industry:Aviation
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 some other type of force, such as a spring, to move it in the opposite direction.
Industry:Aviation
A link rod which connects the pistons in a radial engine to the master rod.
There is one less articulated rod than there are cylinders in each row of cylinders in a radial engine.
Industry:Aviation
