What is wing loading?

Wing loading is the weight of the aircraft divided by the wing area. It indicates how much lift each unit of wing area must generate. Lower wing loading means slower flight, gentler stalls and easier handling. Higher wing loading means faster flight but trickier low-speed handling.

What wing loading is best for a trainer?

For trainers, aim for 30-50 g/sq.dm (12-18 oz/sq.ft). This gives a forgiving, easy-to-fly model that can fly slowly without stalling easily. As you gain experience, move to 50-70 g/sq.dm for more responsive handling.

How does aspect ratio affect flight?

Aspect ratio is wingspan divided by chord. High aspect ratio (8-15) means efficient lift but slow roll rate — good for gliders. Low aspect ratio (3-5) gives fast roll rate — good for aerobatics. Medium (5-8) suits sport planes.

How do I reduce wing loading?

Either increase wing area (bigger wings) or reduce weight. Light construction techniques, lighter batteries and minimising unnecessary equipment all help. For a given wing, use the lightest battery that gives acceptable flight time.

ModelCalcs

Wing Loading Calculator — Flight Characteristics

Calculate wing loading to predict flight characteristics and stall speed.

Wingspan (mm)

Wingtip to wingtip measurement

Chord Length (mm)

Average wing width

All-Up Weight (g)

Total weight including battery

How We Calculate This

Calculates wing loading from weight and wing dimensions, then predicts flight handling characteristics.

Formula

Wing area = Wingspan x Chord
Wing loading (g/sq.dm) = Weight (g) / Wing area (sq.dm)
Aspect ratio = Wingspan / Chord

Frequently Asked Questions

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Last updated: February 2026

All calculations are estimates. Always verify quantities before purchasing materials.