Propeller Anti-Icing
This best describes the blade movement of a full-feathering, constant-speed propeller that is in the LOW RPM position when the feathering action is begun.
What is from high pitch directly to feather position.
If a blade of a particular metal propeller is shortened because of damage to the tip, the remaining blade(s) must be
What is reduced to conform with the shortened blade.
By allowing oil to escape from the propeller hub thus driving the blades to an increased blade angle, the propeller overspeed governor on a turboprop engine does this to propeller RPM.
What is decrease propeller RPM?
Propeller fluid anti-icing systems generally use which of this
What is isopropyl alcohol?
This will happen to the propeller blade angle and the engine RPM if the tension on the propeller governor control spring (speeder spring) is increased.
What is the blade angle will decrease and RPM will increase.
This fluid is generally use in propeller anti-icing systems
What is Isopropyl Alcohol?
This force tends to turn the blades to a high blade angle
What is the aerodynamic twisting force?
correct blade contouring and angle setting can largely eliminate this
Propeller aerodynamic (thrust) imbalance
This unit in the propeller anti-icing system controls the output of the pump
What is the Rheostat?
This is identified as the cambered or curved side of a propeller blade, corresponding to the upper surface of a wing airfoil section?
What is the blade back?
This is how aircraft electrical power for propeller deicer systems is transferred from the engine to the propeller hub assembly.
What is by slip rings and brushes.
By allowing oil to escape from the propeller hub thus driving the blades to a increased blade angle, the propeller overspeed governor on a turboprop engine does this to propeller RPM.
Decreases
The actual distance a propeller moves forward through the air during one revolution is known as this
What is effective pitch?
This best describes the blade movement of a feathering propeller that is in the HIGH RPM position when the feathering action is begun.
What is low pitch through high pitch to feather position
Ice formation on a propeller blade will produce this
What is unbalance and vibration?
this ensures the engine will turn at its rated takeoff RPM at sea level when the throttle is opened to allowable takeoff manifold pressure.
What is the low pitch stop on a constant-speed propeller
These characteristics of grease reduce the frictional resistance of moving part and is easily molded into any form under pressure
antifriction and plasticity
This force ejects anti-icing fluid from the slinger ring on a propeller
Whaty is by centrifugal force
This is the acute angle between the blade section chord line and the plane of rotation.
What is the propeller blade angle?
The pitch-changing mechanism of the hydromatic propeller is lubricated by this
What is the pitch-changing oil?
Grease used in aircraft propellers reduces the frictional resistance of moving parts and is easily molded into any form under pressure. This statement defines
antifriction and plasticity characteristics of grease.