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How to Pump Foil: Step-by-Step Pumping Guide for Beginners

JULY 29, 2021

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Pump foiling means moving forward and staying in flight with no wind and no waves, powered only by your legs. You alternate unweighting and pushing down, and the foil turns that motion into speed. When you pump foil off a dock, it is your only source of speed, which makes it a great way to learn. Find the right gear in our dockstart category, and gear for the waves in our surf foil category.

This guide covers how pumping works, the motion step by step, pumping off a dock and then on a surf foil, a beginner setup, and answers to common questions.

How does pump foiling work?

A hydrofoil works like an airplane wing. It needs speed to create enough lift to carry you above the water. Without speed, the foil sinks and the board drops back down.

Pumping is how you create that speed with your body. You use the foil’s momentum and its vertical push to keep your speed up, cycle after cycle.

Keep one rule in mind from day one: get light as the foil rises, get heavy as it drops. A clean motion at a slower pace beats fast, messy pumping.

How to pump a foil, step by step

Pumping relies on coordinating your legs and shifting your weight. Each cycle has two phases that flow into each other with no pause.

1. Going up: push with the back leg, then unweight

Push through your back leg to lift the nose of the board slightly. Then unweight: take the pressure off the board and let the lift carry the foil up.

2. Going down: press on the front leg

At the top, reverse the motion. Shift your weight onto your front leg and release pressure on the back. The foil angles down and picks up speed. That speed restores lift for the next cycle.

Use your arms

While you unweight, swing your arms in time with your legs. It helps your balance and supports the foil as it rises.

The key is to stay light and smooth, not to force it. Watch a few videos before you hit the water: picturing the motion helps you repeat it.

When do you pump?

The principle is the same whatever you ride. You pump:

  • to take off from a dock, a ramp or a boat, in a dock start;
  • to stay up after a wave and get back to the peak on a surf foil;
  • to catch open-ocean swell and link bumps on a downwind run;
  • to get back up on foil after a touchdown when wing foiling.

For wing foiling, we have a dedicated article: how to pump in wing foiling.

Dock start: learn to pump off a dock

The dock start is a great school for pumping. You start from a platform, with no waves and no wind, and you create all your speed yourself. Unlike other ways of riding, you pump before you are even flying: pumping gets you up, then keeps you up.

The mast

For dock starts, we recommend an 80 cm (31.5 in) mast. From a front wing span of 1.10 m (43.3 in), do not use a skinny mast (a very thin mast). The setup we recommend below meets both points.

Your line

The faster you go, the smoother the motion. At first, avoid tight turns: they cost you speed. Once you are stable, make your turns wider. You keep your speed and restart your pumping in good conditions.

Pumping on a surf foil: linking waves

On a surf foil, pumping lets you stay up after the wave and get back to the peak without paddling. The principle does not change: alternate unweighting and pushing down. The difference is where you start: you are not pumping to take off, you start with the wave’s speed.

Leave the wave at the right moment and head where it is not breaking, to avoid turbulence. Make a long, wide turn to keep your speed, then start pumping.

Clément Danglot breaks down this motion on a surf foil in his video (in French).

▶ Master pumping on a surf foil, with Clément Danglot (in French)

The Lost in the swell, two foil surfers we support, also share their tips for pumping on a surf foil (in French):

▶ Pumping on a surf foil, tips from the Lost in the swell (AFS surf foil tutorials, in French)

If you are new to foil surfing, start with our guide getting started with foil surfing: takeoff, foot placement, first flights. To choose your surf front wing for your weight and level, use the foil finder on our surf foil page.

What pumping rhythm works best?

A long, full motion uses less energy than short, fast pumping. With more range of motion, you get short rest phases as the foil comes closer to the surface.

Your gear also changes the rhythm:

  • Large front wing and long fuselage: the motion relies more on momentum. The pace is slower.
  • Small front wing and short fuselage: the pace is faster and more rhythmic. A short fuselage makes the foil easier to turn.

To learn, a large front wing makes it easier: the motion is smoother and takes less effort than with a small one.

What gear do you need to start pump foiling?

For your first dock start, we recommend this setup:

  • Board: the SK8, our easy-going dockstart board. 16 L, 95 x 44 cm (37.4 x 17.3 in), 2.3 kg (5.1 lb), developed with our dockstart riders.
  • Foil: the Enduro GLT foil full set. Its 1,600 cm² (248 in²) front wing (1,323 mm / 52.1 in span, aspect ratio 11) is designed to help you progress from your very first dock start. It comes with an 80 cm (31.5 in) UHM mast, a short fuselage and an Ultra Glide 43 stabilizer.

The Enduro GLT front wing comes in one size.

We developed it with Gwen Le Tutour and Laurent Borgna. It also works for flat-water starts and supports your first downwind runs with a paddle. Its short fuselage makes it easy to turn and gives a faster pumping rhythm.

Why can’t I pump my foil?

What you feel Likely cause What to change
The foil won’t rise You stay weighted on the way up Get light as the foil rises, get heavy as it drops
You run out of energy after a few pumps Motion too short and too fast Use a fuller range of motion and take the rest phases
The motion feels jerky You force it instead of going with it Stay light, link up and down with no pause, swing your arms in rhythm
You lose speed when leaving a wave Turn too tight Make your turn wider before you start pumping

Pump foiling FAQ

Is pump foiling hard?

It takes some patience, but technique matters more than strength. Pumping still works your legs and your cardio: a full, smooth motion tires you less than pumping by force.

How long does it take to learn to pump foil?

It takes patience and regular sessions, and it depends on your gear and where you ride.

What’s the difference between pumping and a dock start?

Pumping is the motion: creating speed with your legs. A dock start is a way to start: from a dock, pumping to take off. You also pump on a surf foil, on downwind runs and when wing foiling.

Can you pump any foil?

Front wing size changes everything. A large front wing makes the motion smoother and less tiring, which is why we recommend one to start. A small front wing needs a faster pace.

What size foil do you need to pump foil?

To learn, go large: we recommend the Enduro GLT, with its 1,600 cm² (248 in²) front wing and 80 cm (31.5 in) mast.

How do you pump on a wing foil?

The principle is the same, after a touchdown to get back up on foil. We cover it in our article on pumping when wing foiling.

Go further

To understand how a foil creates lift, watch our webinar on foil design (in French).

▶ AFS webinar: understanding foil design (in French)

Pump foiling takes patience and regular practice. Start off a dock, keep a full motion, then take your pumping into the waves with our guide to getting started with foil surfing. Our foils are made in France, in our factory in Brittany, and come with a 2-year warranty. To gear up, find boards, front wings and foil full sets in our dockstart category.