DA40 weight & balance.
Load your aircraft. See its weight, moments, and centre of gravity.
Loading worksheet
Enter weights in the left numeric column. All other values update automatically.
Your loading, plotted
Weights update automatically in Performance.
Aircraft data & source notes
How this calculation works
Moment = weight × arm. CG = total moment ÷ total weight. The published empty moment is retained, rather than recalculated from the rounded empty arm. Zero-fuel weight includes passengers, baggage, and any de-icing fluid. Fuel loading is added; start/taxi fuel and planned fuel burn are subtracted at their own tank arms.
The envelope uses weight-dependent forward and aft limits. Takeoff, landing, and zero-fuel positions are checked, along with applicable weight and baggage limits. Twin-engine profiles also test de-icing fluid depletion and both main/auxiliary fuel-burn orders. Ramp is checked against its separate mass limit, not the flight envelope. These checks do not validate fuel reserves, lateral tank imbalance, baggage restraint, aircraft modification eligibility, or all operating restrictions.
The site uses saved school amendments maintained manually by LAZYKAL’s owner. Visitors cannot start amendment checks. Page loads and loading calculations do not download school documents. If a new scan, loading rule, diagram, missing source, or inconsistent row cannot be verified, the affected aircraft’s calculation pauses instead of silently using old data.
Know where the numbers come from.
Weight and balance, takeoff, and landing information is sourced from Genesis Flight College’s documents and resources. Takeoff and landing estimates use the fixed charts supplied for this calculator.
The weight-and-balance calculator uses saved school aircraft sheets and amendments. Amendments are checked and updated manually by LAZYKAL’s owner; visitors cannot start checks, and opening the site does not contact the school. All visitors share the saved result, with the date shown as “Amendment checked”. Updates are applied after the owner checks the documents; if a changed document cannot be verified, the affected calculation pauses. The amendment used is shown beside each aircraft.
Use at your own discretion. Verify all results against the aircraft’s current official documents before flight.