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Ch47 > ROTORS > Flashcards

ROTORS Flashcards

1
Q

What is the purpose of the Fixed Droop Stops?

A

Limit the droop of the blades

Fixed droop stops help maintain rotor blade position during flight.

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2
Q

Which component in the rotor system uses commands from the FCCs of the DAFCS to provide inputs to the rotor system?

A

LCT Actuators

LCT stands for Longitudinal Control Transducer.

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3
Q

Name the three actuators that are connected to the stationary ring of the swashplate.

A
  • Swiveling Dual boost actuator
  • Pivoting dual boost actuator
  • LCT
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4
Q

What is the purpose of the Centrifugal Droop Stop Assembly?

A

Provide additional limit to the drooping of the aft rotor blades during low rotor rpm and shutdown

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5
Q

What component of the Centrifugal Droop Assembly pulls the balancing arm outward as the NR increases from GROUND to FLIGHT?

A

The weight

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6
Q

What component limits how far the balancing arm on the Centrifugal Droop Assembly moves outward as the NR increases from GROUND to FLIGHT?

A

Limiting stop

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7
Q

What component on the Centrifugal Droop Assembly is used to pull the balancing arm and interposer block back into place as the NR decreases from FLIGHT to GROUND?

A

spring

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8
Q

What does a rotor blade drooping significantly lower than the other blades possibly indicate?

A

Missing droop stop

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9
Q

Which component controls the rate and limits the amount of lead and lag for the rotor blade assemblies?

A

Blade Shock Absorber

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10
Q

Name the four major components that make up the swashplate assembly.

A
  • Rotating Ring
  • Spherical Ball
  • Bearing
  • Stationary Ring
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11
Q

What drives the rotating ring of the swashplate?

A

Drive Collar and Drive Arm

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12
Q

At what level does the oil have to be at to depict that the oil tank is full?

A

Half way full

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13
Q

Which component is mounted inside the Pitch Shaft, passes through the Horizontal Hinge Pin, and connects to the outboard end of the Pitch Varying Housing?

A

Tie bar

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14
Q

Where must the fluid level be at to be an acceptable proper fluid level for a rotor blade shock absorber?

A

Half way full

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15
Q

What condition may occur if ground control limitations are exceeded?

A

Droop stop pounding

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16
Q

A rotor head that allows the blades to lead, lag, feather, and flap is what type of rotor head?

A

Fully articulating

17
Q

What component of the rotor head allows the blades to lead and lag?

A

Vertical hinge pin

18
Q

What components are designed into the rotor blade and provide a ground for the blade to the aircraft?

A
  • Lighting cables
  • Straps
19
Q

What flight condition must be avoided if lightning cables and straps are damaged or missing from the rotor blade?

A

Flight near thunderstorms

20
Q

What is the purpose of the Kevlar filament windings on the rotor blade?

A

Attach shock absorber to blade

21
Q

A fully articulated head means that each blade can _______, _________, _______ and ___________.

A

Lead, lag, feather, and flap

22
Q

What oil level visual indication determines that the oil tank is full?

A

Half full

23
Q

When inspecting the Damper Shock Absorber mounts on the rotor blade, ensure that the Kevlar windings do not have minute cracks running _________ to the direction of the windings.

A

perpendicular

24
Q

What components ground the rotor blade to the rotor head?

A
  • Lightning Cables
  • Grounding Straps
25
Q

What administrative action is required if the rotor system accelerates above 111.5 % NR?

A

maintenance

26
Q

What components provide rotor speed indications (NR) to CAAS?

A

Permanent Magnetic Generator

27
Q

What is the maximum transient (power on) rotor RPM (NR) with the engines driving the rotors?

A

108

28
Q

An entry in DA Form 2408-13-1 must be made if the rotor system exceeds what percentage?

A

111.5

29
Q

Describe the rotor system limitations from the chart in (NR) IAW TM 1-1520-271-10-2, Chapter 5.

A
  • min transient %: 91
  • transient %: 91-97
  • normal %: 97-101
  • transient %: 101-106
  • max transient power on %: 106
  • %: 108
  • %: 111
30
Q

What is the normal rotor RPM (NR) operating range?

A

97-101

Ch47 (8 decks)

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