Propeller Flashcards
Anti-Ice System
Fluid-Based
Anti-ice System Alcohol
isopropyl alcohol
Glycol based fluid
Isopropyl Alcohol benefits
easy to find a cheap
Glycol based fluid
not flammable
Anti-ice system Main components
Tank
Pump
Nozzles
Slinger Ring
Control Unit (Rheostat)
Tank
stores fluid
Pump
sends fluid to the nozzle
Nozzles
sprays fluid into the propeller
Slinger Ring
mounted behind the propeller; distributes the fluid to blades.
Rheostat
Adjusts how much fluid is released.
De-Icing System
Electric-Based
De-icing system
Removes ice that has already formed on the propeller.
De-icing system Main components
Power Source
Power Relay
Resistance Heating Elements
System Control
Slip Ring
Power Source
provides electricity
Power Relay
controls current flow
Resistance Heating Elements
heat up to melt ice.
System Control
manages operation
Slip Ring
mounted behind the propeller, transmits electric current to rotating blades.
De-Icing Boots
Installed on leading edge of blades.
Use heat to break ice.
De-icing boots
also known as heat shoes
Runback icing
Happens when melted ice refreezes on parts not covered by anti-ice systems.
Fluid-anti ice ring
slinger ring
Electrical Deicing ring
slip ring
Fluid Anti-Ice System ring position
slinger ring is mounted at the back of the propeller hub
Electrical De-Icing System ring position
slip ring is found at the back of the propeller hub
