ANTI-ICE AND DE-ICE SYSTEMS
61-00-36
Page 7-3
Rev. 2 Feb/17
Propeller Owner's Manual
136
1. Introduction
A. Propeller De-ice System
(1) A propeller de-ice system is a system that removes ice
after it forms on the propeller blades. A de-ice system
uses electrical heating elements to melt the ice layer
next to the blades, permitting the ice to be thrown from
the blade by centrifugal force. Blades are alternately
heated and permitted to cool as the current is applied
and removed automatically by the de-ice system timer.
(2) System components include a timer or cycling unit,
electrical slip ring(s), brush block assembly, and blade
mounted de-ice boots.
B. Propeller Anti-ice System
(1) A propeller anti-ice system is a system that prevents
formation of ice on propeller surfaces. An anti-ice system
dispenses a fluid that mixes with, and reduces the
freezing point of, moisture on the propeller blades. The
mixture may then flow off the blades before it forms ice.
(2) System components include a fluid tank, pump,
slinger ring, b
lade mounted fluid anti-icing boots
, and
a fluid dispensing tube that is located at each blade
anti-icing boot.
Содержание B-4270
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