helicopter final

The angle formed between the relative wind be the chord line is?

Angle of attack

On a helicopter, which of these is supplied by the main rotor blades?
A. Thrust
B. Both drag and lift
C. Lift
D. Both thrust and lift

D. Both thrust and lift

To change the angle of attack of the blades, move the:
A. Directional control pedals
B. Collective pitch control
C. Cyclic control stick
D. Swashplate

C. Cyclic control stick

A helicopter with twin masts, each with a rotor turning in an opposite direction is called a?

Synchropter

Both rotors on the same mast, turning in different directions:

Coaxial

Two main rotors on each end of the fuselage:

Tandem

Can transition to horizontal flight like a conventional aircraft:

Tiltrotor

Designed to use a main and tail rotor system:

Single rotor

List the three types of weights used to balance blades:

Mass balance weights, span wise weights, tracking weights

On a helicopter, which of these is supplied by the main rotor blades?
A. Thrust
B. Both drag and lift
C. Lift
D. Both thrust and lift

D. Both thrust and lift

Which of these airfoils does not work well for helicopter rotors because of a shift in the aerodynamic center of pressure?
A. Negative camber
B. Top camber
C. Zero camber
D. Upper camber

A. Negative camber

To get more even distribution from lift, most rotor blades are:
A. Weighted with balances
B. Twisted positively from root to tip
C. Twisted negatively from root to tip
D. Tapered

C. Twisted negatively from root to tip

What permits the rotor disc to tilt, providing directional control in flight?
A. Articulated rotor head
B. Flapping
C. Leading blade
D. Lagging blade

B. Flapping

Each time the helicopter lifts off the ground, the transmission mount/mast tube is subjected to what type of stress?
A. Torsion
B. Bending
C. Compression
D. Tension

D. Tension

To change the angle of attack of the blades, move the:
A. Directional control pedals
B. Collective pitch control
C. Cyclic control stick
D. Swashplate

C. Cyclic control stick

Which of these paved the way for powered rotary-wing aircraft to fly successfully?
A. Autogyros
B. Flapping hinge
C. Advancing rotor blades
D. Hovering capability

B. Flapping hinge

Which of these is the point at which burbling takes place?
A. Angle of incidence
B. Critical angle of attack
C. Critical angle of incidence
D. Angle of attack

B. Critical angle of attack

Which of these can a helicopter do that a fixed-wing aircraft cannot?
A. Land without engine power
B. Land with reverse thrust
C. Land with zero forward speed
D. Control speed of descent

C. Land with zero forward speed

The transition phase of a helicopter is:

When it goes from hover to forward flight

Ground effect (need to come back and finish this one)