Preflight · Performance

Weight & balance

Load the airplane on paper before you load it on the ramp. Compute gross weight and CG, then check the envelope.

Weight & Balance — PilotRules

Aircraft & limits

Enter YOUR aircraft’s empty weight, empty CG, and station arms from its current weighing record / POH. Defaults are representative 172S values, not your airplane.

Loading

StationWeight (lb)Arm (in)Moment (lb-in)
Empty weight—
Front seats (pilot + pax)—
Rear seats—
Fuel (enter gallons) gal—
Baggage area 1 (max 120)—
Baggage area 2 (max 50)—
Totals———

Result

—

— lb gross · CG — in

    Envelope check uses the representative 172S normal-category limits (fwd 35.0 in @ ≤1950 lb sloping to 41.0 in @ 2550 lb; aft 47.3 in). Always verify against the specific aircraft’s POH and current weight-and-balance data.