KwikJet

Since 2019

The one that started it.

KwikJet was our first jetboat, released on 4 January 2019. Depending on how you configure it you can see well over 50 km/h. It is built to shrug off the shallowest, nastiest water, and with almost no delay between the trigger and the thrust it is simply a very good time.

It is still the boat we hand to someone building their first jetboat. Small enough to throw in a bag, quick enough to keep you honest, and cheap enough that a mistake at the waterside is a lesson rather than a disaster.

04.01.2019 First KwikJet released
Since then Hundreds of builds, in every colour a spool comes in
Now Hardware shared with the KwikJet X

KwikJet with the deck open, showing the electronics tray and battery bay — Everything serviceable, everything reachable.

The jetpump

The heart of your jetboat.

Everything that makes the boat go happens inside one assembly: water in through the hull, 35 mm of pump, and out through a 23.5 mm nozzle you can aim. Here is what each part of it is doing.

Section through the KwikJet X jetpump: intake tunnel, impeller, stator, steering nozzle and reversing bucket

1
Intake

A slot set flush into the bottom of the hull, behind a grate, feeding a long shallow tunnel. The boat is moving, so water is effectively rammed in rather than sucked — which is why a jetboat gets more efficient the faster it goes. Nothing protrudes, so there is nothing to shear off.
2
Impeller

Bolted straight to the motor shaft — no gearbox, no lag. The flow divides around the hub and passes either side of it, and the blades screw it along the housing, adding pressure as it goes.
3
Stator

Water leaving an impeller is spinning, and a spinning jet is wasted thrust. Fixed vanes take that swirl out as the two paths rejoin behind the hub, turning it back into straight-line pressure.
4
Steering nozzle

Here the pressure becomes speed. The 35 mm bore necks down to 23.5 mm — about 2.2× less area — so the same water has to leave that much faster than it was travelling inside. And because the whole nozzle swivels, you are aiming the thrust itself.
5
Reversing bucket

Drop the bucket into the jet and the same thrust is thrown forward and down instead of back. Full reverse, and — held halfway — the fine control that lets you hold the boat still against a current.

The 35 mm pump and its 23.5 mm nozzle, with the reversing bucket raised.

The pump

Small bore. Serious bite.

A 35 mm pump sitting entirely inside the hull, driven straight off the motor. Squeeze the trigger and the boat simply goes — there is no propeller to spool up and nothing under the hull to catch a rock. The whole assembly comes apart with a screwdriver, which is how it survives a season of shallow water.

35 mmpump bore
23.5 mmnozzle outlet
2.2× area reduction at the nozzle
Direct driveno gearbox, no delay

What you get

Everything on the KwikJet

Over 50 km/h

Up to 52 km/h on a 3S pack, depending on the motor and impeller you choose. The direct-drive pump means no delay — just thrust.
35 mm jetpump

The 35 mm pump that made the KwikJet name, exiting through a 23.5 mm nozzle: compact, efficient and endlessly rebuildable.
Built for shallows

Nothing hangs below the hull. Run it up rivers, over gravel bars and through water no propeller boat would survive.
Reversing bucket

Deploy the bucket for full reverse and precise docking — the same mechanism the X inherited.
Up to 35 min runtime

Around 35 minutes on two 2200 mAh 3S packs, so a session is limited by your attention span, not the battery.
Shares hardware with the X

Hardware is cross-compatible with KwikJet X. Build one, then the other, from the same box of screws.

Renders

Every angle

Straight out of CAD — what you print is what you see here.

Numbers

KwikJet specifications

Technical specifications for the KwikJet
Total length	620 mm
Hull length	550 mm (without jetpump)
Jetpump diameter	35 mm
Nozzle outlet	23.5 mm
Top speed	up to 52 km/h on 3S
Runtime	up to 35 min — 2 × 2200 mAh, 3S
Reverse	Reversing bucket
Drive	Direct drive
Impeller	Fixed geometry
Fasteners	Screws — no heat-set inserts
Hardware	Cross-compatible with KwikJet X
First released	04.01.2019

Speeds and runtimes depend on the motor, impeller and battery you choose. Figures quoted are what we have measured on our own builds.

Side by side

Which one is yours?

The hardware is cross-compatible, so this is really a question about the water you drive on.

KwikJet X compared with KwikJet
	KwikJet X The flagship	KwikJet The classic
Total length	680 mm	620 mm
Jetpump bore	40 mm	35 mm
Nozzle outlet	24.5 mm	23.5 mm
Steering	Ball-jointed linkage	Nozzle linkage
Reversing bucket	Yes	Yes
Trim tabs & turning fins	Yes	No
Roll-cage	Yes	No
Heat-set inserts	Yes	No
Equation-driven impeller	Yes	No
Quoted top speed	Configuration dependent	up to 52 km/h on 3S
Best for	Rivers, shallows and top-end runs	First jetboat, tight water, speed runs
	KwikJet X	KwikJet

Two ways in

Build a KwikJet

Get the printed kit

Printed in the materials we know work and shipped cleaned up and ready to assemble. The fastest route to water.

Checked part by part before it ships
Supports removed, ready to assemble
Hardware list included

Get the kit

Print your own

Take the files, run them on your own printer, and make it yours. Print profiles, a hardware list and the build manual come with them.

Print-optimised, support-light parts
Build manual and hardware list
Community support in the Facebook group

Get the files

KwikJet

Intake

Impeller

Stator

Steering nozzle

Reversing bucket

Over 50 km/h

35 mm jetpump

Built for shallows

Reversing bucket

Up to 35 min runtime

Shares hardware with the X

Get the printed kit

Print your own