C208 Weight and Balance Calculator

Enter station weights, arms, fuel, and limits. Review total moment and loaded center of gravity. Compare limits, fuel burn, and baggage effects before dispatch.

Calculator Inputs

Aircraft Limits

Fuel Data

Station Loading

Formula Used

Moment = Weight × Arm

Total weight = Sum of all station weights + fuel weight

Total moment = Sum of all station moments + fuel moment

Loaded CG = Total moment ÷ Total weight

Fuel weight = Fuel gallons × Fuel density

%MAC = ((CG − LEMAC) ÷ MAC) × 100

Landing weight = Takeoff weight − Trip fuel weight

How to Use This Calculator

Enter the current empty aircraft weight and arm from the official record. Add each passenger, baggage, cargo, and equipment station. Enter planned fuel, fuel arm, taxi fuel, and trip fuel. Add the aircraft limits from approved data. Press calculate. Review ramp, takeoff, landing, and zero fuel results.

Example Data Table

The table below is only an example. Do not use it as approved C208 data.

Station Weight Arm Moment
Basic empty aircraft 5200 190.50 990600
Pilot and copilot 360 150.00 54000
Passengers 1200 210.00 252000
Baggage and cargo 500 245.00 122500
Fuel 1809 190.00 343710

C208 Weight and Balance Guide

Why this calculation matters

A C208 weight and balance check supports safe loading decisions. The calculation shows the loaded aircraft weight, total moment, and center of gravity. It also shows how fuel burn can move the center of gravity. This page is built for planning practice, training, and record review. It is not a replacement for the approved aircraft flight manual, weight schedule, or current equipment list.

What the inputs mean

Each station needs a weight and an arm. Weight is the load at that station. Arm is the distance from the datum. Moment is weight multiplied by arm. Empty aircraft data should come from the latest aircraft weighing record. Passenger, baggage, cargo, and fuel values should match the planned flight. The calculator uses a fuel density value so gallons can be converted into pounds.

Understanding the result

Ramp weight includes payload and starting fuel. Takeoff weight subtracts taxi fuel. Landing weight subtracts taxi fuel and trip fuel. Zero fuel weight removes usable fuel from the aircraft loading. The loaded center of gravity is found by dividing total moment by total weight. If a mean aerodynamic chord value is supplied, the tool also gives percent MAC.

Use official limits

The limit fields are editable because every aircraft can be different. A C208 may have configuration changes, equipment changes, or approved supplements. Enter the correct ramp, takeoff, landing, zero fuel, forward CG, and aft CG limits from the official source. The calculator checks the entered limits and marks each case as pass or review.

Better loading habits

Start with the empty weight record. Add crew, passengers, baggage, cargo, and fuel in the proper stations. Review the ramp condition first. Then review takeoff and landing conditions. Move baggage or cargo only when the approved loading instructions allow it. Save or export the result for a dispatch note or classroom worksheet.

Good records also help instructors, pilots, and planners compare different loading choices. Small arm changes can create meaningful moment differences quickly during loading.

Final note

Aircraft loading is a controlled safety task. Always use current approved data. Recheck units, arms, fuel density, and limits. When values conflict, stop and verify the aircraft records before using the result.

FAQs

Is this calculator certified for flight release?

No. It is a planning and training tool. Use the approved aircraft flight manual, current weighing record, and company procedures for operational release.

What is an arm?

An arm is the distance from the aircraft datum to a station. It is used with weight to calculate moment.

What is moment?

Moment is weight multiplied by arm. It shows how strongly a load affects aircraft balance around the datum.

Why does fuel burn change CG?

Fuel has weight and an arm. As fuel is burned, both total weight and total moment change. The CG may move.

Can I change the station names?

Yes. The station labels are editable. Use station names and arms from the current aircraft records.

What does zero fuel weight mean?

Zero fuel weight is the aircraft loaded weight without usable fuel. It includes empty aircraft, crew, passengers, cargo, and baggage.

What happens if a limit is blank?

The calculator marks that limit as not set. Enter official limits to receive pass or review messages.

Which fuel density should I use?

Use the density required by your approved procedure. The default is editable because fuel type and policy may differ.

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