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CESSNA AIRCRAFT COMPANY
FOR TRAINING USE ONLY
MODEL 152
7-17
COOLING SYSTEM
Ram air for engine cooling enters through two intake openings in the front of the engine cowling. The
cooling air is directed around the cylinders and other areas of the engine by baffling, and is then
exhausted through an opening at the bottom aft edge of the cowling. No manual cooling system control
is provided.
A winterization kit is available for the airplane. The kit consists of two cover plates to partially cover the
cowl nose cap opening, two placards to be installed on the cover plates, insulation for the engine
crankcase breather line, and a placard to be installed on the map compartment door. This equipment
should be installed for operations in temperatures consistently below -7°C (20°F). Once installed, the
crankcase breather insulation is approved for permanent use regardless of temperature.
PROPELLER
The airplane is equipped with a two-bladed, fixed-pitch, one-piece forged aluminum alloy propeller
which is anodized to retard corrosion. The propeller is 69 inches in diameter.
FUEL SYSTEM
The airplane may be equipped with either a standard fuel system or long range system (see figure 7-6).
Both systems consist of two vented fuel tanks (one in each wing), a fuel shutoff valve, fuel strainer,
manual primer, and carburetor. Refer to figure 7-5 for fuel quantity data for both systems.
FUEL QUANTITY DATA (U.S. GALLONS)
TANKS
TOTAL USABLE FUEL
ALL FLIGHT
CONDITIONS
TOTAL
UNUSABLE FUEL
TOTAL
FUEL VOLUME
STANDARD
(13 Gal. Each)
24.5
1.5
26.0
LONG RANGE
(19.5 Gal. Each)
37.5
1.5
39.0
Figure 7-5. Fuel Quantity Data
Fuel flows by gravity from the two wing tanks to a fuel shutoff valve. With the valve in the ON position,
fuel flows through a strainer to the carburetor. From the carburetor, mixed fuel and air flows to the
cylinders through intake manifold tubes. The manual primer draws its fuel from the fuel strainer and
injects in into the cylinder intake ports.
Fuel system venting is essential to system operation. Blockage of the venting system will result in a
decreased fuel flow and eventual engine stoppage. Venting is accomplished by an interconnecting line
from the right fuel tank to the left tank. The left tank is vented overboard through a vent line which is
Содержание 152 1978
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