AAC Aircraft Systems & Components

Question 1

How many main rotor blades does the UH-60 Black Hawk have?

Accepted Answer

4

Answer

The UH-60 uses a four-bladed fully articulated main rotor system.

Question 2

Which rotor configuration does the CH-47 Chinook use?

Accepted Answer

Tandem rotors

Answer

The CH-47 has two counter-rotating rotors mounted fore and aft in a tandem layout.

Question 3

What is the primary function of a single-rotor helicopter's tail rotor?

Accepted Answer

Counteract main rotor torque and provide directional control

Answer

The tail rotor offsets the torque reaction of the main rotor and lets the pilot control yaw.

Question 4

What does the swashplate assembly do?

Accepted Answer

Transmits flight control inputs from the stationary controls to the rotating rotor blades

Answer

The swashplate converts collective and cyclic inputs into blade pitch changes on the rotating system.

Question 5

Which engine family powers the UH-60 Black Hawk?

Accepted Answer

T700

Answer

The UH-60 is powered by twin General Electric T700-series turboshaft engines.

AAC - Army Aviation Maintenance Program Practice Test