Systems Flashcards
Engines
Continental IO-520-C
Fuel injected, air cooled, six cylinder, horizontally opposed engines.
Each produce 285 hp @ 2700RPM
Mixture control lever controls the fuel air mixture to each engine.
Propellers
Hartzell 3 blade props.
74”- 76”
Low Pitch (FF) 14° +/-2°
Feathered 81.2° +/-2°
Fuel Capacity
166 Gallons (total)
172 Gallons (usable)
Max Weight
Ramp: 5,424lbs.
Take-off: 5,400lbs.
Max Take-Off & Landing Weight
5400 lbs.
Battery
One 15.5-ampere-hour, 24-volt lead acid battery is standard.
Landing Gear
Retractable tricycle with a steerable nose wheel. The landing gear is operated through adjustable linkage connected to an actuator assembly mounted beneath the front seats. The actuator gear may be electrically retracted and extended, and may be extended manually. A main strut safety switch prevents gear retraction on the ground. The main gear has hydraulically actuated disc brakes.
Induction Air
Available from filtered ram air or alternate air. Filtered ram air enters from top of cowling; should it be obstructed a spring-loaded door on the alternate air intake will open automatically.
Engine Ice Protection
Engine ice protection consists of an electrothermal fuel vent heaters controlled by a switch on the left panel, and alternate air induction systems.
Hartzell Air-Charged Propellors
If propellor air dome pressure is lost during flight, the following symptoms may be noticed: over speed and poor synchronization during high-RPM operation; and propellor overspeed upon the instant opening of of the throttle, followed by poor RPM recovery.
When oil pressure is lost, the propeller will feather, which means the air charge, spring, and counterweights will increase the blade pitch to the feathering stop.
Fuel System
The fuel system is an OFF-ON-CROSSFEED arrangement.
Fuel Vapor Return Line
Returns excess fuel from the engine to its respective wing system.
How many fuel drains and where are they located?
There are 6 fuel drains. 3 on each wing.
Prop Governor
A governor is an RPM-sensing device and high-pressure oil pump. In a constant-speed prop system, the governor responds to a change in engine RPM by directing oil under pressure to the propeller hydraulic cylinder or by releasing oil from the hydraulic cylinder. The change in oil volume in the hydraulic cylinder changes the blade angle and maintains the prop RPM. The governor is set for a specific RPM via the cockpit prop control levers, which compress or releases the governor speeder spring.
Electrical System
60amp, 28 volt, gear driven alternators are controlled by 2 transistorized electronic voltage regulators. Only one regulator is operable in the system at any one time. The remaining regulator is used as an alternate/standby unit.