Archer II & III Components - Flight School
Transcript of Archer II & III Components - Flight School
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Archer II & III Components
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Lycoming O-360-A4M Engine
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Piper Archers -Carbureted-4 Cylinders -Horizontally Opposed -Naturally Aspirated
Cylinder
Rubber baffles to redirect airflow for cooling Fins for air
cooling
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Magnetos
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• 2 Magnetos attached to engine in left and right positions
• Engine driven, provide power to spark plugs
Ignition leads to spark plugs
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Spark plugs
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There are 8 spark Plugs
• Provides spark to the cylinders for combustion
• 2 per cylinder
• Each spark plug is powered by a different magneto for redundancy
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Vacuum Pump
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Provides suction to vacuum powered instruments • Attitude Indicator• Directional Gyro
Suction gauge (Normal Range 4.8-5.2)
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Auxiliary Vacuum Pump
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• Equipped on Archer III’s• Located on right upper side of firewall behind engine• Electrically driven backup vacuum source in
the event of engine driven vacuum pump failure• Activated by an “Aux Vac” Button on left hand side of panel
next to vacuum gauge
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Starter
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• Located just behind the prop spinneron the 5 o’clock position in both models
• Turns propeller spinner when starting
Starter Gear
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Alternator
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• Provides electrical power to the aircraft • Recharges battery • Belt driven
• Archer II - 14Vt 60 Amp Alternator• Archer III - 28Vt 70 Amp Alternator
• Archer II – Located on 7 O’clock position behind prop• Archer III – Located on 5 O’clock position
Alternator Belt
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Engine Driven Fuel Pump
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• Located on back side of Engine • Pressurizes fuel system to keep a
steady flow of fuel to the engine
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Electric Fuel Pump
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• Auxiliary source of fuel pressure for added redundancy so that fuel flow continues in the event of engine driven fuel pump failure
• Used during takeoff & landing
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Fuel Strainer
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• Also known as the Gascolator, is the lowest point in the fuel system
• Filters sediments and debris within the fuel system• Fuel is sumped at every preflight to check for contamination
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Carburetor
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• Float Type Carburetorlocated underneath engine block
• Mixes Air/Fuel before entering engine for combustion
• If needed, hot air can enter from an exhaust shroud utilizing the carb heat lever to prevent or remove any icing build up
Fuel Lines
Air Source
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Air Induction
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Archer II Intake
Archer III Intake
Air entering the engine is routed through an intake that goes to an air filter prior to entering the carburetor
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Cabin Heat
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• Lower inlet on front left side of cowling • When turned on, air enters the inlet and is routed into
an exhaust shroud for heating prior to entering cabin
Exhaust Shroud
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Alternator Cooling Air Inlet
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• Equipped on Archer III’s• Upper inlet on front left portion of lower cowling Archer III’s• Routes air into the back of the alternator for cooling
Air Duct
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Pitot-Static Mast
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• Provides both ram air and static air inputs for the pitot static instruments
• Front air port provides ram air for airspeed indicator aka pitot tube
• Lower and rear ports provides static air for the static instruments
Ram Air
Static
Static
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Static Source on empennage
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• This static source only supplies static pressure to the autopilot system on board if equipped
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Stall Warning
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• Small tab on leading edge of left wing
• Provides warning to the pilots of an impending stall
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Ground Power Inputs
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Archer II 12 Volt Input
Archer III 24 Volt Input
Refer to Pilots Operating Handbook for Instructions
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Fresh Air Inlets
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• Brings fresh air from outside into cabin
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COMM Antennas
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COMM 1
If there is no COMM 2 antenna on top of the aircraft, it will be underneath
GPS Antenna
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Transponder Antennas
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Type of antenna varies between aircraft regardless if it is Archer II or III
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VOR Antenna
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• V Shaped antenna on top of vertical stabilizer• Used for VOR navigation
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Garmin GPS Antenna
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• Flat round shaped antennas located on top of the fuselage• Receive GPS satellite signals for GPS navigation
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Marker Beacons Antenna
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• Located underneath the empennage of both Archer II’s & III’s• Used during IFR approaches to let pilots know the location
of marker beacons to determine their location on an approach
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ELT
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ELT Panel
Antenna
• Emergency Locator Transmitter• Located on right side of empennage • In the event of a forced landing, it will
transmit an emergency signal on 121.5 to aid search and rescue efforts
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Temperature Probes
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• Provides Outside Air Temperature (OAT) indicated on a Temp. Gauge