Operation Of Systems Flashcards
How are various flight controls operated?
The flight control surfaces are manually actuated through use of either a rod or cable system
What are flaps and what is their function?
Wing flaps are movable panels on the inboard trailing edges of the wings. They are hinged so that they may be extended downward into the flow of air beneath the wings to increase both lift and drag. Their purpose is to permit a slower airspeed and a steeper angle of descent during a landing approach
Describe the landing gear system on this airplane
The landing gear consists of a tricycle type system utilizing two main wheels and a steerable nose wheel. Wheel fairings are standard equipment for both the main wheels and nosewheel. Shock absorption is provided by the tubular spring steel main landing gear struts and the air/oil nose gear shock strut. Each main gear wheel is equipped with a hydraulically actuated disc type brake on the inboard side of each wheel.
Describe the braking system on this aircraft
Hydraulically actuated disc type brakes are utilized on each main gear wheel. A hydraulic line connects each brake to a master cylinder located on each pilots rudder pedals. By applying pressure to either set of rudder pedals, the brakes may be applied.
What are the four main control surfaces and what are their functions
Elevators- the elevators control the movement of the airplane about its lateral axis. This motion is pitch
Ailerons- the ailerons control the movement is the aircraft about its longitudinal axis. This is called roll.
Rudder- the rudder controls the movement of the aircraft about its vertical axis. Yaw
Trim tabs- trim tabs are small, adjustable hinged surfaces on the aileron, rudder, or elevator control surfaces. Enables the pilot to release manual pressure on the primary control
What type of hydraulic fluid does your aircraft use and what color is it?
A mineral based hydraulic fluid MIL-H-5606
It is dyed red
How is steering accomplished on the ground?
Nose wheel steering capabilities through a system of mechanical linkage connected to the rudder pedals
What type of engine does your aircraft have?
A lycoming, normally aspirated, direct drive, air cooled, horizontally opposed, fuel injected, four cylinder engine with 360 cubic inch displacement. 180 horsepower at 2700 RPM
What four strokes must occur in each cylinder of a typical four stroke engine in order for it to produce full power?
Intake, compression, power, exhaust
- The piston starts it’s downward travel causing the intake valve to open and the fuel air mix to be drawn into the cylinder
- The intake valve closes and the piston starts moving back to the top of the cylinder.
- The fuel air mix is ignited which causes a tremendous pressure increase in the cylinder and forces the piston downward and away from the cylinder head, creating power that turns the crankshaft
- Used to purge the cylinder of burned gases and begins when the exhaust valve opens, and the piston starts to move toward the cylinder head once again
What does the throttle do?
The throttle allows the pilot to manually control the amount of fuel/air charge entering the cylinders. This in turn regulates the engine speed and power
What does the mixture control do?
It regulates the fuel to air ratio. Mixture control is used to prevent the mixture from becoming too rich at high altitudes, due to decreasing air density. It is also used to lean the mixture on cross country flights to conserve fuel and provide optimum power
Describe a fuel injection system in some aircraft?
The fuel injection system injects fuel directly into the cylinders
Auxiliary(electric driven) fuel pump- provides pressurized fuel to the fuel/air control unit for starting or emergency use
Engine driven fuel pump- provides, after starting, pressurized fuel from the fuel tank to the fuel/air control unit
Fuel/air control unit- essentially replaces the carburetor. It meters fuel based on the mixture setting and sends it to the fuel distributor at a rate controlled by the throttle
Fuel distributor- distributes fuel to the individual fuel discharge nozzles at the entrance to each cylinder
Fuel discharge nozzles- injects the fuel directly into each cylinder
Fuel pressure/flow indicator- tells you how much fuel is flowing to the engine
Describe the electrical system on your aircraft
Electrical energy is provided by a 28 volt,direct current system powered by an engine driven 60 amp alternator and 24 volt battery
What is the function of the manual primer, and how does it operate?
The manual primers main function is to provide assistance in starting the engine. The primer draws fuel from the fuel strainer and injects it directly into the cylinder intake ports. Leads to a quicker, more efficient engine start
The electrical system provides power for what equipment in an airplane
Radio equipment, turn coordinator, fuel gauges, pilot heat, landing light, taxi light, strobe light, interior lights, instrument lights, position lights, flaps, stall warning system, oil temp gauge, electrical fuel pump
