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18 Cards in this Set
- Front
- Back
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Which propeller type model is used in the Navy today?
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54H60-77
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Why does the propeller maintain 100 percent constant speed?
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To obtain maximum power and efficiency
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What component operates on the principle of accurate measurement of torsional deflection?
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Torquemeter assembly
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What is the purpose of the Negative Torque Signal (NTS)?
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Prevents the propeller from driving the engine
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Which assembly provides the drive and location to mount the propeller and accessories?
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Reduction Gear
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How many positions are marked on the power lever quadrant?
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6
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What power lever quadrant range is flight idle in?
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Beta
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What degrees is flight idle on the power lever quadrant?
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34°
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What is the purpose of the coordinator?
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To coordinate propeller temperature control, and fuel control
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What is the central portion of the propeller called?
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Hub
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What is the purpose of feathering?
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Streamlining the propeller with the relative wind
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Which propeller model designator in 54H60-77 indicates the number of blades?
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4
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What force causes a blade to bend backwards?
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Torque bending
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What is the primary function of a propeller system?
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Increase and decrease pitch
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What is the main purpose of the spinner assembly?
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Streamline air for cooling
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What is the blade angle changing assembly mechanism of the propeller system?
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Dome
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What assembly is considered the brains of the propeller system?
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Valve housing
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How many rigging pins are required, at a minimum, to rig the propeller control linkage?
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5
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