1980 C172N Speeds and EPs

Vne

158 KIAS

Vno

127 KIAS

Va

97 KIAS at 2300 lbs
89 KIAS at 1950 lbs
80 KIAS at 1600 lbs

Vfe

85 KIAS (flaps >10�)

White Arc

33 KIAS - 85 KIAS (Vso to Vfe)

Green Arc

44 KIAS - 127 KIAS (Vs to Vno)

Yellow Arc

127 KIAS - 158 KIAS (Vno to Vne)

Engine Failure During Takeoff Run Emergency Checklist

1. Throttle - IDLE.
2. Brakes - APPLY.
3. Wing Flaps - RETRACT.
4. Mixture - IDLE CUT-OFF.
5. Ignition Switch - OFF.
6. Master Switch - OFF.

Engine Failure Immediately after Takeoff Checklist

1. Airspeed - 65 KIAS (flaps UP)/60 KIAS (flaps DOWN)
2. Mixture - IDLE CUT-OFF.
3. Fuel Selector Valve - OFF.
4. Ignition Switch - OFF.
5. Wing Flaps - AS REQUIRED
6. Master Switch - OFF.

Engine Failure During Flight

1. Airspeed - 65 KIAS
2. Carburetor Heat - ON.
3. Fuel Selector Valve - BOTH.
4. Mixture - RICH.
5. Ignition Switch - BOTH (or START if propeller is stopped)
6. Primer - IN and LOCKED.

Forced Landing Checklist

1. Airspeed - 65 KIAS (flaps UP)/60 KIAS (flaps DOWN)
2. Mixture - IDLE CUT-OFF.
3. Fuel Selector Valve - OFF.
4. Ignition Switch - OFF.
5. Wing Flaps - AS REQUIRED
6. Master Switch - OFF.
7. Doors - UNLATCH PRIOR TO TOUCHDOWN.
7(a). Communicate - SQUAWK

Precautionary Landing with Engine Power Checklist

1. Wing Flaps - 20�
2. Airspeed - 60 KIAS
3. Selected Field - FLY OVER, noting terrain and obstructions, then retract flaps upon reaching a safe altitude and airspeed.
4. Avionics Power Switch and Electrical Switches - OFF.
5. Wing Flaps - 40� (on final a

Ditching Checklist

1. Radio - TRANSMIT MAYDAY on 121.5 MHz, giving location and intentions and SQUAWK 7700 if transponder is installed.
2. Heavy Objects (in baggage area) - SECURE OR JETTISON.
3. Approach - High Winds, Heavy Seas - INTO THE WIND.
3. Approach - Light Winds,

Fire During Start on Ground

1. Cranking - CONTINUE, to get a start which would suck the flames and accumulated fuel through the carburetor and into the engine.
IF engine starts:
2. Power - 1700 RPM for a few minutes.
3. Engine - SHUTDOWN and inspect for damage.
IF engine fails to st

Engine Fire in Flight Checklist

1. Mixture - IDLE CUT-OFF
2. Fuel Selector Valve - OFF.
3. Master Switch - OFF.
4. Cabin Heat and Air - OFF (except overhead vents)
5. Airspeed - 100 KIAS (If fire is not extinguished, increase glide speed to find an airspeed which will provide an incombu

Electrical Fire in Flight Checklist

1. Master Switch - OFF.
2. Avionics Power Switch - OFF.
3. All Other Switches (except ignition switch) - OFF.
4. Vents/Cabin Air/Heat - CLOSED.
5. Fire Extinguisher - ACTIVATE (if available).
WARNING - After discharging an extinguisher within a closed cab

Cabin Fire Checklist

1. Master Switch - OFF.
2. Vents/Cabin Air/Heat - CLOSED.
3. Fire Extinguisher - ACTIVATE (if available).
WARNING - After discharging an extinguisher within a closed cabin, ventilate the cabin.
4. Land the airplane ASAP to inspect for damage.

Wing Fire Checklist

1. Navigation Light Switch - OFF.
2. Pitot Heat Switch (if installed) - OFF.
3. Strobe Light Switch (if installed) - OFF.
NOTE - Perform a sideslip to keep the flames away from the fuel tank and cabin, and land ASAP using flaps only as required for final

Icing Checklist

1. Turn pitot heat switch ON.
2. Turn back or change altitude to obtain an outside air temperature that is less conducive to icing.
3. Pull cabin heat control full out and open defroster outlets to obtain maximum windshield airflow. Adjust cabin air contr

Static Source Blockage Checklist

1. Alternate Static Source Valve - PULL ON.
2. Airspeed - Consult appropriate calibration tables in POH
NOTE - Break glass in face of the rate-of-climb indicator.

Landing with a Flat Main

1. Approach - NORMAL
2. Touchdown - GOOD TIRE FIRST, hold airplane off flat tire as long as possible.

Ammeter Shows Excessive Rate of Charge

1. Alternator - OFF.
2. Alternator Circuit Breaker - PULL.
3. Nonessential Electrical Equipment - OFF.
4. Flight - TERMINATE as soon as practical.

Low Voltage Light

1. Avionics Power Switch - OFF.
2. Alternator Circuit Breaker - CHECK IN.
3. Master Switch - OFF (both sides).
4. Master Switch - ON.
5. Low-Voltage Light - CHECK OFF.
6. Avionics Power Switch - ON.
If low-voltage light illuminates again:
7. Alternator -

Spin

1. RETARD THROTTLE TO IDLE POSITION.
2. PLACE AILERONS IN NEUTRAL POSITION.
3. APPLY AND HOLD FULL RUDDER OPPOSITE TO THE DIRECTION OF ROTATION.
4. JUST AFTER THE RUDDER REACHES THE STOP, MOVE THE CONTROL WHEEL BRISKLY FORWARD FAR ENOUGH TO BREAK THE STAL

Low Oil Pressure

Low oil pressure and normal oil temperature means there is possibility of an oil relief valve or pressure gage malfunction. Land at nearest airport for inspection.
Low oil pressure and high oil temperature means an engine failure is imminent. Reduce power

Emergency Landing Fields

Good - pasture (brown-green; may have livestock or cow paths gross it)
Good - freshly cut wheat, barley, oat fields, etc. (brown grass but mower marks can usually be seen)
Fair - field of high grass, wheat, etc. (Rich green or golden)
Poor - high corn (Gr