St Louis Flying Club

N20843 Weight and Balance Calculator


Disclaimer: The following Weight and Balance calculator is based on the 4 May 2008 (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) 1460.3 57.916
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.