Flight Controls

Front 1

What are the 7 main sections of the flight control system?

Back 1

Cockpit controls

Closet controls

First and Second-Stage mixing controls

Forward upper controls

Tunnel controls

Aft fuselage controls

Aft upper controls

Front 2

What’s the purpose of the flight control system?

Back 2

To transmit control movements from the cockpit to the swashplates.

Front 3

What are the tilt of the FWD & AFT XMSN’s? And why?

Back 3

FWD - 9

AFT - 4

To provide a forward propulsive force aid during ground taxiing.

Front 4

What are LCT’s what do they do?

Back 4

The Longitudinal Cyclic Trim’s are electrical actuators attached to the swashplates. The LCT system provides programmed cyclic tilt of the rotor discs.

Front 5

As airspeed increases forward tilt increases. Why?

Back 5

To minimize fuselage pitch and attitude changes. Reduces blade flapping, stress on the aft vertical shaft, fuselage AOA, allowing for a higher velocity.

Front 6

What are the four control axes of flight?

Back 6

Thrust

Pitch

Roll

Yaw

Front 7

What happens when the thrust control is raised?

Back 7

The collective pitch angle of all six rotor blades increases, causing the aircraft to ascend.

Front 8

Longitudinal control of the tandem helicopters is accomplished through what?

Back 8

Differential Collective Pitch (DCP) (Each rotor system cancels the other systems torque effect)

Front 9

Forward cyclic input ______ thrust (collective pitch) in the forward rotor system and ______ thrust in the aft rotor system an equal amount, causing the aircraft to pitch nose down and increase airspeed.

Back 9

Decreases

Increases

Front 10

Aft cyclic input ________ the thrust in the forward rotor system and ______ thrust in the aft rotor system causing the aircraft to pitch nose up, decrease airspeed, and move aft.

Back 10

Increases

Decreases

Front 11

What happens when the cyclic is moved left?

Back 11

FWD & AFT swashplates tilt to the left. Helicopter rotates along the center of the fuselage and slides left.

Front 12

What happens when the cyclic is moved left?

Back 12

FWD & AFT swashplates tilt to the left. Helicopter rotates along the center of the fuselage and slides left.

Front 13

What happens when the cyclic is moved right?

Back 13

FWD & AFT swashplates tilt to the right. Helicopter rotates along the center of the fuselage and slides right.

Front 14

How is YAW directional control accomplished?

Back 14

By tilting the rotor systems equally in opposite directions which causes the aircraft to turn about the vertical axis.

Front 15

What does a right pedal input do?

Back 15

Tilts the forward swashplate to the right and the aft swashplate to the left. The helicopter rotates around the vertical axis moving nose right - tail left.

Front 16

What does a left pedal input do?

Back 16

Tilts the forward swashplate to the left and the aft swashplate to the right. Helicopter rotates around the vertical axis moving nose left - tail right.

Front 17

What control inputs will cause the acft to turn around the fwd rotor system?

Back 17

Pedal and cyclic movements in the opposite direction.

Front 18

How is a right turn initiated?

Back 18

Apply right pedal and left cyclic.