St Louis Flying Club

N20843 Weight and Balance Calculator


Disclaimer: The following Weight and Balance calculator is based on the 10 May 2009 (latest) weight and balance values for N20843 and using formulas derived from the Cessna Skyhawk 172M Pilots Operating Handbook published in 1975. An Excel Version W&B Calculator is also available for download. Pilots are responsible for verifying proposed flights are within the weight and balance limits for their aircraft.

Weight and Balance Weight (lbs) Moment (lb-ins/1000)
Basic Empty Weight (including unusable fuel and full oil) 1462.4 57.911
Usable fuel (48 gallons maximum. 6 lbs/gal)
Enter 288 for full tanks

Pilot and front passenger (station 34 to 46)
Rear passengers
Baggage area 1 (station 82 to 108, 120 lbs max)
Baggage area 2 (station 108 to 142, 50 lbs max)
RAMP WEIGHT AND MOMENT
Fuel allowance for engine start, taxi, and runup -7.0 -0.34
TAKEOFF WEIGHT AND MOMENT (maximum 2300 lbs)
Center of Gravity Moment Envelope Min Moment
Max Moment

LOADING LIMITS GRAPH
LOADING ARRANGEMENTS
*Arm for Pilot or passenger center of gravity on adjustable seats positioned for average occupant (used in above W&B Calculator). Number in parentheses indicate forward and aft limits of occupant center of gravity range

**Arm Measured to center of areas shown. These values are used in the above W&B calculator

NOTE: The rear cabin wall (appoximate station 108) or aft baggage wall (approximate station 142) can be used as a convenient interior reference points for determining the location of baggage area fuselage stations.