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Jeppesen Airframe Ch. 1 Section A (Aircraft Design and Construction)
Terms in this set (37)
Early airplanes usually used a ________ structure.
A(n) ________ structure carries all of the structural loads in its skin and is referred to as a __________ design.
The most common structural design for modern aircraft is a __________ structure where the skin, bulkheads, formers, stingers, and other components carry the aerodynamic loads.
A(n) ________ fuselage has a substructure to stiffen the external skin.
A structure that is built with more than one path for the stress so a crack will not destroy the structure is called a(n) ________ design.
The angle formed between the chord of the wing and the relative wind is known as the angle of __________.
Air passes across an airfoil will create a region of _________ pressure above the airfoil.
What component attaches to the spars to give the wing the aerodynamic shape it needs to produce lift?
The center of lift of an aircraft is usually located ____________ the center of gravity.
Fabric-covered airplane wings usually have a(n) ___________-type structure.
The steel wire that runs from the front spar inboard to the rear spar outboard in a truss-type wing is called a(n) _________ wire.
A wing which uses no external struts or braces for support is called a(n) ___________ wing.
Milled skins for high-speed aircraft may be produced by conventional machining or by ___________ milling, or by ___________ machining.
Laminated materials such as bonded honeycomb are used for aircraft structure because they provide maximum ___________ as well as a favorable strength to weight ratio.
Control surfaces are balanced so that their center of gravity is __________ the hinge line.
Stiffness of the thin sheet metal covering for a control surface may be increased by __________ the metal skin.
The three primary controls of an airplane are:
On jet transport aircraft equipped with two sets of ailerons, only the _________ aileron is used during high-speed flight.
A(n) _________ is a control device that destroys lift by disrupting the airflow over a part of the wing.
The primary purpose of a winglet is to improve _________ by reducing ________ by diffusing the __________.
Performance, Drag, Wingtip vortices
__________ __________ are pairs of small, low aspect ratio airfoil sections mounted on the upper surface of a wing to pull high-energy air down onto the surface to prevent shock-induced separation.
The assembly of tail surfaces of an airplane is called the __________.
The extension of the vertical stabilizer that may extend nearly to the cabin section is known as a(n) ________ fin.
An all movable horizontal tail surface is called a(n) __________.
An all-movable tail surface usually has a large tab installed on its trailing edge. This is known as a(n) ___________ tab.
The movable surface on a V-tail design are known as __________.
The wings, tail, engine, and landing gear are attached t the body of an aircraft, which is called the _________.
In a ________ truss fuselage, the strays carry only the tensile loads.
Both tensile and compressive loads are carried in the diagonal members of a __________ truss fuselage.
Aircraft using a tail wheel type landing gear configuration are also called ___________ gear airplanes.
Aircraft using a nose wheel type landing gear configuration are also called ___________ gear airplanes.
When a landing gear is retracted into the structure, the __________ drag is reduced.
Today, almost all piston-powered airplanes enclose the engine in a(n) cowling.
Heat is removed from the cylinders of an air-cooled engine by forcing air to flow through __________ on the cylinders.
The amount of airflow through the fins of a high-powered engine is usually controlled by ____________ ____________ at the air exist.
Cowl flaps are normally _________ during ground operations.
The two most common locations for turbojet or turbofan engine installation are:
a. Beneath the wing
b. At the rear fuselage
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