MilViz Beechcraft Baron 55, Pilot Operating Handbook

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BEECHCRAFT Baron B55
Version 1.0 – 15 May 2012
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up AUTO (automatic) position, controls the system. When
the switch is in the AUTO position, the deice boots inflate
for a period of five to six seconds, then deflate
automatically and return to the vacuum hold down
position. The switch must be tripped for each complete
cycle. In the MAN position the deice boots inflate as long
as the switch is held in this position. When the switch is
released, the boots deflate and go to the vacuum hold
down condition.
Deice boots are designed to remove ice after it has accumulated, rather than prevent its formation. If
the rate of ice accumulation is slow, best results are obtained by leaving the deice system off until 1/2 to
1 inch of ice accumulates. Bridging can occur if boots are actuated too early or too frequently.
The wing ice light(s), used to check for ice accumulation during night operation, illuminates the wing
leading edge. The light switch is on the pilot's subpanel.
PROPELLER AND WINDSHIELD:
ANTI-ICE SYSTEM (FLUID FLOW)
NOTE
The function and operation of the fluid flow style propeller and windshield
anti-ice systems are not modeled on the MilViz Baron 55.
The system is designed to prevent the formation of ice. Always place the system in operation before
encountering icing conditions.
Ice is prevented from forming on the propeller blades by wetting the blade anti-ice boots with anti-icing
fluid. The anti-ice pump delivers a constant flow of fluid from the supply tank to the blade boots. The
pump is controlled by an ON-OFF switch located on the pilot's subpanel.
Windshield anti-ice (when installed) receives anti-ice fluid from the same source as the propeller anti-ice
system. Ice is prevented from forming on the windshield by wetting the windshield surface with anti-ice
fluid. This combined system is controlled by a three position switch, MOM ON-OFF-ON, located on the
pilot's subpanel. The system will not function unless the propeller anti-ice pump switch is turned ON. For
windshield system only, the flow is controlled by an ON-OFF switch. An indicator on the right side of the
instrument panel indicates the amount of fluid in the supply tank.
With a full reservoir, system endurance is:
Windshield:
approx. 36 min.
Prop Anti-ice Only: approx. 120 min.
Prop & Windshield: approx. 28 min.
Figure 85