Archer II & III Components

Archer II & III Components Lycoming O-360-A4M Engine Piper Archers -Carbureted -4 Cylinders -Horizontally Opposed -Naturally Aspirated

Cylinder

Rubber baffles to redirect airflow for cooling Fins for air cooling

• 2 Magnetos attached to engine in left and right positions

• Engine driven, provide power to spark plugs Ignition leads to spark plugs

© 2015 Coast Flight Training. All Rights Reserved. Spark plugs 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

Provides suction to vacuum powered instruments • Attitude Indicator • Directional Gyro

Suction gauge (Normal Range 4.8-5.2)

• 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

Starter Gear

• 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

• Located on back side of Engine • Pressurizes fuel system to keep a steady flow of fuel to the engine

© 2015 Coast Flight Training. All Rights Reserved. Electric Fuel Pump • 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

• 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

© 2015 Coast Flight Training. All Rights Reserved. Carburetor Fuel Lines • Float Type Carburetor located 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 Air Source

Air entering the engine is routed through an intake Archer II that goes to an air Intake filter prior to entering the carburetor Archer III Intake

• 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

© 2015 Coast Flight Training. All Rights Reserved. Alternator Cooling Air Inlet • 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

© 2015 Coast Flight Training. All Rights Reserved. Pitot-Static Mast • 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

If there is no COMM 2 antenna on top COMM 1 of the aircraft, it will be underneath

GPS Antenna

• V Shaped antenna on top of vertical stabilizer • Used for VOR navigation

• Flat round shaped antennas located on top of the fuselage • Receive GPS satellite signals for GPS navigation

• 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

• Emergency Locator Transmitter ELT Panel • 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

• Provides Outside Air Temperature (OAT) indicated on a Temp. Gauge