KwikJet X on black

The flagship

KwikJet X V2

Four years of hull iterations, distilled into one.

total length
680 mm
jetpump diameter
40 mm
hull iterations
12
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Four years in

Twelve hulls. One survivor.

KwikJet X has been in build since 11 April 2021. Twelve different hulls later, we took the best feature from each iteration and merged them into a single boat — the one you can actually get. Its 40 mm pump splits the difference between a high-speed and a high-pressure design, so it climbs rivers as happily as it rips down a lake.

Nothing on this boat is there because it was easy to model. Every feature earned its place by surviving a build, a season and a river.

  1. 11.04.2021 First line drawn
  2. 2021 – 2024 Twelve hull files, printed and driven
  3. Now KwikJet X V2 — the merge of all of them
KwikJet X V2 side profile, showing the hull line and roll-cage
680 mm from bow to reverser.

The jetpump

The heart of your jetboat.

Everything that makes the boat go happens inside one assembly: water in through the hull, 40 mm of pump, and out through a 24.5 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

40 mm bore 24.5 mm nozzle

Scroll the diagram sideways

  1. 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. 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. 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. 4

    Steering nozzle

    Here the pressure becomes speed. The 40 mm bore necks down to 24.5 mm — about 2.7× 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. 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 40 mm pump shown translucent — intake, impeller, stator and the 24.5 mm steering nozzle in one assembly.
The 40 mm pump shown translucent — intake, impeller, stator and the 24.5 mm steering nozzle in one assembly.

Why equation-driven

The impeller is solved, not sketched.

The mass flow through the pump is the same at every point — what goes in comes out. The cross-section it passes through is not: the water travels as a ring around the hub, and that hub swells under the blades. So the blade is not drawn by eye. It is defined by equations and solved station by station, each section sized to hold that mass flow constant as the ring changes.

Three stations along the pump: the hub grows, so the ring the water flows through changes A B C
Three stations, looking down the shaft. The hub grows, the ring shrinks, the mass flow stays the same.
  • 40 mmpump bore
  • 24.5 mmnozzle outlet
  • 2.7× area reduction at the nozzle
  • Direct driveno gearbox, no delay

What you get

Everything on the KwikJet X

  • Ball steering

    A ball-jointed nozzle linkage for the highest precision and reliability, with no slop to develop over a season.

  • 40 mm jetpump

    High efficiency in a 40 mm bore, squeezed down to a 24.5 mm nozzle — the pure power of the motor converted straight into thrust.

  • Reversing bucket

    Full reverse and pinpoint low-speed manoeuvring — back off a beach without ever turning around.

  • Equation-driven impeller

    The cross-section the water passes through changes all the way along the pump. The blade is solved from equations at every station so the flow through it stays constant instead of surging and stalling.

  • Trim tabs & turning fins

    Customisable tabs and fins — tune the attitude of the hull and how hard it bites in a turn.

  • Heat-set inserts

    Threaded brass inserts throughout — unique to the X — so the boat survives being taken apart as often as you like.

  • Printable roll-cage

    A roll-cage designed to come off the bed cleanly — no supports gymnastics, no post-processing marathon.

  • Shares hardware with KwikJet

    Screws and the electronics layout carry straight over from the classic KwikJet. One spares box for both boats.

Renders

Every angle

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

Numbers

KwikJet X specifications

Technical specifications for the KwikJet X
Total length 680 mm
Jetpump diameter 40 mm
Nozzle outlet 24.5 mm
Steering Ball-jointed nozzle linkage
Reverse Reversing bucket
Impeller Equation-driven, constant mass flow
Hull control Customisable trim tabs & turning fins
Fasteners Heat-set threaded inserts
Roll-cage Included, print-optimised
Hardware Cross-compatible with KwikJet
In development since 11.04.2021

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 X

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

Your legal guarantee rights

Gesetzliche Gewährleistung. Mindestens zwei Jahre gesetzliche Gewährleistung der Vertragsmäßigkeit für Waren, die in der Europäischen Union verkauft werden. Verbraucherinnen und Verbraucher können ihre Rechte im Rahmen des gesetzlichen Gewährleistungsrechts geltend machen, z. B. wenn die Waren nicht der Beschreibung entsprechen oder nicht bestimmungsgemäß funktionieren. Verkäufer haften für jede Vertragswidrigkeit, die zum Zeitpunkt der Lieferung der Waren bestand und innerhalb des Zeitraums der gesetzlichen Gewährleistung erkennbar wird. Verkäufer müssen in solchen Fällen kostenlose Nachbesserung oder kostenlose Ersatzlieferung anbieten, in bestimmten Fällen eine Preisminderung oder eine vollständige Erstattung des Kaufpreises. In einigen Ländern gilt ein längerer Zeitraum für die gesetzliche Gewährleistung. Für gebrauchte Waren kann ein kürzerer Zeitraum gelten, jedoch nicht weniger als ein Jahr. Was ist zu tun, wenn Sie vertragswidrige Waren erhalten? 1. Melden Sie dem Verkäufer das Problem so bald wie möglich. 2. Legen Sie einen Kaufnachweis vor, z. B. die Quittung, Rechnung oder einen Kontoauszug. Verkäufer und Hersteller können auch gewerbliche Garantien gewähren, die unabhängig von der gesetzlichen Gewährleistung gelten. Weitere Informationen: europa.eu/youreurope/garantien

europa.eu/youreurope/garantienEnglish versionWhat our warranty covers