SECTION 2
Aircraft Systems
Cessna 172N
Engine
The Cessna 172 N models are equipped with a Lycoming, 4 cylinder, normally
aspirated, carbureted , 320 cubic inch, horizontally opposed, air cooled, direct
drive O-320-H2AD engine. The N model produces 160 HP @ 2700 RPM,
Ignition is
provided by 2 magnetos on the back of engine which provide spark to 8 spark
plugs (2 per cylinder). The engine has an 6 quart oil sump. FGA minimum oil
quantity for takeoff is 4 quarts.
Propeller
The engine drives a McCauley, 75inch
2 blade, all metal, fixed pitch propeller.
Vacuum System
An engine-driven vacuum system provides the suction necessary to operate the attitude
indicator and directional indicator. The system consists of a vacuum pump mounted on
the engine, a vacuum re- lief valve and vacuum air filter.
Landing Gear
The landing gear is a fixed, tricycle type gear consisting of tubular spring steel
providing shock absorption for the main wheels, and an oleo (air/oil) strut
providing shock absorption on the nose wheel. The nose strut extends in flight,
locking it in place. The nose wheel contains a shimmy damper which damps
nose wheel vibrations during ground operations at high speeds. The nose
wheel is linked to the rudder pedals by a spring-loaded steering bungee which
turns the nose up to 10° each side of center. Differential braking allows for up to
30° of steering either side of center.
Brakes
Brakes are hydraulically actuated, main wheel single-disc brakes controlled by
master cylinders attached to both pilots' rudder pedals. When the airplane is
parked, the main wheel brakes may be set by the parking brake handle beneath
the left side instrument panel. To apply the parking brake, set the brakes with
the rudder pedals, pull the handle aft and rotate it 90° down.
NOTE: The parking brake is not to be used in training or flight checks with FGA.
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