A common question we get when people look at the FluxJet is about the missing propeller. The reality is that we do not use one. This usually leads to questions about how the kayak moves. The short answer is a custom-built jet-drive system. This technology has been used in marine applications for decades, but we miniaturized and fully electrified it for a fishing platform.
The longer answer involves the specific engineering choices that make this work on a kayak. We utilize a sealed impeller housing, a highly adaptable variable power architecture, a mechanical reverse system meant for clearing weeds, and a custom intake tuned specifically for a 4-inch running depth.
The Problem Jet Propulsion Solves
Traditional propeller motors on fishing kayaks come with three major headaches. They bottom out in shallow water, they get tangled in thick vegetation, and the blades take damage from underwater impacts. Anglers have accepted these issues for years as the standard cost of adding a motor.
A custom-built impeller enclosed in a sealed housing eliminates all three of these problems. There is no exposed rotating blade to hit a rock or wrap around grass. Furthermore, the intake is engineered for shallow geometry, removing the depth penalty that comes with dropping a propeller into the water.
Scaling a marine jet drive down to kayak size while keeping efficiency high enough for a battery-only power source is a massive engineering challenge. Our team leveraged decades of marine propulsion experience to design the patented jet drive at the core of the FluxJet.
Inside the Custom Drive: Intake, Impeller, Nozzle, Reverse
The propulsion system consists of four highly engineered components.
1. The Custom Intake
Water enters through a screened opening on the bottom of the hull. This screen blocks larger debris from entering while maintaining excellent water flow. We spent over a year refining this intake specifically to perform at a 4-inch running depth. If it is too shallow, the system cavitates. If it is too deep, you lose the shallow-water advantage.
2. The Impeller
A sealed multi-blade impeller accelerates the water. We use a brushless motor design to ensure lower maintenance and excellent longevity. Because the housing is fully sealed, the internal components are protected from rocks, sand, and grass.
3. The Directional Nozzle
Water exits through a directional nozzle (steering bucket) at the rear. Steering is controlled by deflecting this nozzle laterally using the built-in foot steering. The kayak responds instantly, allowing for zero-degree-turning agility. Very little effort is required to move the nozzle for maximum effect.
4. Instant Reverse
Turn the throttle dial backwards and the jet reverses, which creates reverse thrust. As we have mentioned before, boats do not have brakes. This reverse function is not designed for fast stops or long-distance navigation. It is built to help you back out of tight spots and to pulse water backward to clear weeds off the intake screen.
Power Architecture: Drop-In Batteries and Runtime
The FluxJet operates on a highly adaptable electrical system that accepts standard drop-in marine batteries with fully charged voltages ranging from 12V to 60V. This means you have total control over your weight and range. Standard marine batteries are easy to find, so you are never locked into an expensive proprietary format.
Your overall runtime depends on the battery capacity you choose, your speed setting, and the water conditions. The system supports speeds of 6+ mph, but your cruising time will vary based on how you rig the boat. A typical setup delivers all-day cruising plus active fishing time.
The Reality of Speed and Control
The FluxJet can hit speeds of 6+ mph depending on your battery setup, which is fast for a kayak motor. However, speed is only half the equation. The other half is control. Reverse on the FluxJet allows you to redirect water forward to clear the intake. This gives you the control you need in unpredictable water conditions.
Industry Validation at ICAST 2025
The dual ICAST 2025 wins for Best of Show and Best Boat or Watercraft came from a panel that has seen every kayak motor innovation of the last decade. The fishing industry's skepticism is hard to overcome, and the response at ICAST was the exact opposite of skeptical. They recognized the real engineering built into this hull.
FAQ: Electric Jet Propulsion
Is the FluxJet loud? +
It is quieter than most propeller trolling motors at cruise speeds. The system makes a low rushing sound from the intake rather than the blade cavitation whine associated with traditional props.
Can the FluxJet run dry? +
No. Like any jet-drive system, it requires water at the intake. Running dry can damage the seals. Anglers should never intentionally run the system out of water.
What happens if the impeller jams? +
The intake screen blocks most debris. If grass or weeds do get stuck, the instant reverse cycle typically flushes it out. If a hard jam occurs, the system protects itself and you can safely clear it manually back on shore. Always carry a paddle.
Is the FluxJet salt-water rated? +
Yes. It requires the same care after salt-water trips that any electric marine system requires. Simply rinse the intake with fresh water, check your connections, and ensure dry storage.
How is maintenance handled? +
The brushless motor has substantially fewer wear components than a brushed equivalent. Anglers handle basic intake and jet asembly cleaning themselves. Anything inside the sealed motor housing requires factory service, similar to a standard outboard power unit.
Ready to Experience Jet Propulsion?
Reserve your FluxJet build spot with a $499 refundable deposit, or join the interest list to see it in action.
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