Auxiliary Propeller Systems Flashcards

Flashcards about Auxiliary Propeller Systems

The ___ system is designed to reduce propeller noise and vibration.

Designed to reduce propeller noise and vibration.

The ___ system prevents or removes ice from propeller blades.

Prevents or removes ice from propeller blades to improve performance during flight in freezing precipitation.

Synchronizing systems ___ engine speed.

Control engine speed and reduce vibration by synchronize the propellers to the same speed.

To use prop synchronizing, the propeller ___ is coarsely matched by the pilot and the system is engaged.

The propeller rpm is coarsely matched by the pilot and the system is engaged.

MASTER MOTOR SYNCHRONIZATION: ___ all engines at a selected speed.

Synchronize all engines at a selected speed.

MASTER MOTOR SYNCHRONIZATION: Components:___.

Synchronizer master unit, Four alternators, Master tachometer, Tachometer generator, Contactor unit for each engine, RPM master control lever.

MASTER TACHOMETER INDICATOR (FLIGHT DECK): The ___.

Flight crew set Manually: The engine speed by manually adjusting the RPM control lever. Automatic: Master Unit motor RPM

Engine alternator: The ___ produced by the alternator is directly proportional to the speed of the engine.

Frequency produced by the alternator is directly proportional to the speed of the engine.

ONE MASTER CONTROL SYNCHRONIZING SYSTEM Twin engine operation: Adjust the other engine ___ governor until the engine speeds match

Adjust the other engine slave governor until the engine speeds match

Frequency reflect engine ___.

Built in frequency generators, Frequency reflect engine RPMs.

___ systems Maintain both RPMs and blade angle.

Maintains both RPMs and blade angle.

Phase angle: angular difference can be adjusted to achieve minimum ___.

Angular difference can be adjusted to achieve minimum noise and vibration levels.

SYNCHROPHASING: Components: ___.

Propeller pulse generator, Synchrophasing Controller (Phasing Control Unit)

___ system removes ice after it has accumulated.

Remove ice after it has accumulated.

Fluid Anti-ice: Components: ___.

Control unit, Tank, Pump, Nozzles, Slinger ring, Feed shoes

Slinger ring: ___ for each propeller blade.

Delivery tube for each propeller blade.

Feed shoes: Used to ___ the fluid to the leading edge of the blade.

Used to disperse the fluid to the leading edge of the blade.

ELECTRIC DEICING: Consists: ___.

Power source, Power relay, Resistance heating elements, System controls, Timer or cycling unit.

Externally mounted heating elements Controls: ___.

Power switch, Load meter, Cycling timers, Protective devices: Current limiters Circuit breakers.

Propeller de-icing components: ___.

Slip ring, Brush block, Heating boot

Feed shoes: Consists ___ or metal tube that extends from the blade shank.

Consists rubber or metal tube that extends from the blade shank.

An electrical connection between airframe and propeller hub is called a ___.

Slip rings: An electrical connection between airframe and propeller hub.

De-icing ___: Attached to each blade with an approved bonding agent.

Attached to each blade with an approved bonding agent.

___: A condition where melted ice reforms behind a blade's leading edge.

A condition where melted ice reforms behind a blade's leading edge.

Prevention: ___ energize the heating elements for periods of 15 to 30 seconds with a complete cycle time of two minutes.

Cycling timers energize the heating elements for periods of 15 to 30 seconds with a complete cycle time of two minutes.