Why Weight and Balance Matters
A Cessna 150 is light, simple, and honest. It still needs careful loading. A small change in fuel, baggage, or passenger weight can move the center of gravity. That movement affects stability, control feel, stall behavior, and climb performance. This calculator gives a structured check before flight planning. It does not replace the official aircraft records.
What This Tool Checks
The form adds empty aircraft data, occupants, fuel, oil, baggage, and two optional stations. Each station uses a weight and an arm. The calculator multiplies both values to find each moment. It then totals all weights and moments. The center of gravity is found from those totals. The result shows takeoff loading and estimated landing loading after fuel burn.
Editable Envelope Limits
Aircraft records matter. A Cessna 150 can have equipment changes, repaint history, avionics upgrades, or repaired parts. Those changes alter empty weight and empty arm. Different model years can also use different approved limits. For that reason, the maximum weight and CG envelope fields are editable. Enter the values from the current weight and balance sheet, equipment list, and pilot handbook.
Fuel and Landing Review
Fuel burn changes weight during flight. It also changes moment because fuel has its own station arm. The calculator subtracts trip fuel burn from usable fuel. It then recalculates landing weight, landing moment, and landing CG. This helps show whether a loading plan is acceptable through the flight, not only at departure.
Good Operating Practice
Use real scale weights when possible. Avoid guessed baggage values. Include headsets, charts, tiedown gear, survival kits, oil, and small cockpit items. Small items can matter in a small airplane. Check both total weight and CG. A loading plan can be under gross weight yet outside the CG envelope.
Planning Only
This page is designed for training, study, and planning support. Before any real flight, confirm data against current aircraft documents. Use the exact station arms approved for your aircraft. Review runway, density altitude, weather, fuel reserve, and performance charts. Safe loading is one part of safe flight preparation. It also encourages consistent records. Exported files can support a repeatable loading habit. They should be stored with flight planning notes for review later.