Cessna 172N

arisceders's version from 2015-05-02 19:50


Question Answer
Vne158 kts
Vno127 kts
Va (2300 lbs)97 kts
Va (1950 lbs)89 kts
Va (1600 lbs)80 kts
Vfe 10° flaps110 kts
Vfe 10°-40° flaps85 kts
Stall speed (flaps up)50 kts
Stall speed (flaps down)44 kts
Best glide speed (flaps up)65 kts
Best glide speed (flaps down)60 kts
Landing speed w/o engine power (flaps up)65 kts
Landing speed w/o engine power (flaps down)60 kts
Normal climb-out speed70-80 kts
Short field T/O speed at 50 ft (flaps up)59 kts
En-route climb (sea level)75-85 kts
Best rate of climb speed Vy (sea level)73 kts
Best angle of climb speed Vx (sea level)59 kts
Landing approach (flaps up)65 kts
Landing approach (flaps 40)60 kts
Maximum demonstrated crosswind velocity15 kts

Weight limits

Question Answer
Maximum T/O weight2300 lbs
Maximum landing weight2300 lbs
YL-CAA empty weight1515 lbs
Load factors (flaps up)+3.8g .. -1.52g
Max load factor (flaps down)+3.0g

Airplane systems

Question Answer
Useful fuel40 GAL
Total fuel43 GAL
EngineLycoming O-320-H2AD
Engine horsepower160 BHP at 2700
Maximum engine RPM2700
Max RPM drop during magneto check125 RPM
Max RPM difference between magnetos50 RPM
Onboard voltage24V
AlternatorDC 60A 28V
Battery14 Ah 24 V
Maximum ammeter chargingless than two needle widths over the middle
DI, AI powerVacuum
Turn coordinator powerelectrical
Oil temperature indicator powerelectrical
Tachometer powermechanical
Carburetor intake temp yellow arc-15 .. +5 °C
Oil temp normal operating range38 .. 118 °C
Oil temp red-line118 °C
Oil systemwet-sump
Oil quantity5 quarts
Cooling systemRam air
Min turning radius on ground8.4 m
Propeller (pitch/diameter)fixed two-blade, 75in
Loss of RPM with carburetor heat100-225 RPM


Question Answer
Range (75% power, 8000ft)455 NM
Maximum airborn time (40 GAL)3.8 h
Rate of climb (20°C, sea-level)770 FPM
T/O ground roll230 m
T/O total dist. over 50ft obstacle424 m
LDG ground roll160 m
LDG total dist. over 50ft obstacle381 m
T/O distance wind correction10% per 9kts
Fuel required correction10% per 10 degrees over ISA

Emergencies / Abnormalities

Question Answer
Fire during start on ground1. Mixture cut-off; 2.Continue cranking; 3.Secure engine (Master OFF, Ignition OFF, Fuel selector OFF); 4. Fire extinguisher
Engine fire in flight1. Mixture cut-off; 2.Fuel selector OFF; 3. Master OFF; 4. Cabin heat OFF; 5. Airspeed 100 (or more); 6. Forced landing
Electrical fire in flight1. Master OFF; 2. Avionics OFF; 3. All electrical OFF (ex. ignition); 4. Cabin air/heat CLOSED; 5. Fire extinguisher
Cabin fire1. Master OFF; 2. Cabin air/heat OFF; 3. Fire extinguisher; 4. Forced landing;
Wing fire1. Navigation lights OFF; 2. Pitot heat OFF; 3. Strobe light OFF; 4. Perform sideslip (to keep flames off).
Icing1. Pitot heat ON; 2. Turn back / change altitude; 3. Cabin heat FULL; 4. Throttle increase; 5. Watch out for carburetor icing; 6. Search for nearby airport; 7. Be prepared for higher stall speed; 8. No flaps;
Over voltage light1. Avionics OFF; 2. Master OFF (both sides); 3. Master ON; 4. Over voltage light OFF; 5. Avionics ON;
Ammeter shows discharge1. Alternator OFF; 2. Non-essential/radio eq. OFF; 3. Terminate flight ASAP
Spin recovery1. Throttle IDLE; 2. Ailerons neutral; 3. Full opposite rudder; 4. Push control wheel enough to break the stall; 5. Hold until rotation stops; 6. Neutralize rudder, pull-out from a dive
Spiral dive recovery1. Throttle IDLE; 2. Stop turn by coordinated ailerons and rudder input; 3. Pull-out from a dive
Low Oil pressureOnly if accompanied with rise in oil temperature: 1. Reduce engine power immediately; 2. Select suitable forced landing field; 3. Use minimum power to reach touchdown spot
Wind correction: Head-windNeutral & Into-the-wind
Wind correction: Tail-windForward & out-of-the-wind