Planing
When a board rises out of the water and skims across the surface instead of pushing through it — the threshold that turns slogging into flying.
Also known as: on the plane
Below planing speed your board is in displacement mode — pushing water aside, top speed limited by hull length. Above it, the board climbs out of the water onto a thin film of contact and skims. Drag drops, speed jumps, and the board feels alive.
For windsurfing and kitesurfing, planing is the threshold most riders chase. It usually requires:
- Enough wind (rough rule: rider weight in kg ÷ sail size in m² needs the right wind for your gear)
- A board with a flat, wide planing surface
- Foot pressure on the back foot to lift the nose
Below planing — slogging — you’re slow, the rig pulls awkwardly, and turns mush. Once planing kicks in everything clicks: foot straps make sense, the harness pulls cleanly, and you’re suddenly going twice as fast for the same effort.
Foil rides have replaced the planing threshold with the foiling threshold — even lower wind needed.
Related reading: Kite Size from Forecast.
Related terms
- Foil An underwater wing on a vertical mast that lifts the board out of the water once you reach foiling speed.
- Footstraps Adjustable straps mounted on the board that lock your feet in once you're planing — control, leverage and air time depend on them.
- Harness A belt or seat worn around your waist or hips that hooks into the rig — transfers sail/kite/wing pull from your arms to your core.