Aviation Machinist Mate 3 & 2

Front 1

The main difference between a helicopter and an airplane is?

Back 1

the source of lift.

Front 2

Rotor lift is explained by either of two theories.

Back 2

Newton’s law of momentum & the blade element theory.

Front 3

The difference existing between the advancing blade half of the disk and the retreating blade half.

Back 3

Dissymmetry of lift.

Front 4

A main rotor that permits individual movement of blades in a vertical and horizontal plane is known as an?

Back 4

articulated rotor.

Front 5

The upward bending of the
blades caused by the combined forces of lift
and centrifugal force.

Back 5

Coning

Front 6

During forward flight, lift over the advancing blade half of the rotor disk is greater then the
retreating half. This greater lift would cause the
helicopter to roll unless something equalized the
lift. What is one method to equalize the lift?

Back 6

Blade Flapping

Front 7

Hovering builds up a cushion of dense air beneath the helicopter known as ground cushion or ______?

Back 7

ground effect

Front 8

Autorotation occurs when the main rotor turns by

Back 8

air passing up through the rotor system instead of by the engine.

Front 9

Paracoccidioidomycosis: what?

Back 9

captain's wheel appearance
budding yeast )much larger than RBC)

Front 10

Tests have shown that the lift of a helicopter increases by surface.

Back 10

polishing the rotor blades to a mirrorlike