VECTOR replaces the stock fin. Slide it into the fin box, connect the battery and go. No brackets, no clamps, no holes in the board.
The slider sets the battery pack. The model calculates RPM, shaft power, thrust and the speed of a SUP with a rider. Each step in S adds power until the motor hits the limit of the propeller and drivetrain.
Gold line: PETG with pin. Light dashed line: PETG with steel sleeve. Green line: aluminium propeller (estimate). The marker shows the selected battery. Up to 10S speed grows with voltage. Beyond that, power is capped by the propeller and drive, and 20S gives throttle headroom, less voltage sag and less heat.
Calculation: 4 blades Ø140 × P77, power rises with the cube of RPM, load by BEMT (±25 %), RPM under load is 88 % of no-load. Aluminium propeller: efficiency assumed 5 % higher (assumption, not measured). Speed from the drag of a SUP with a rider, estimate ±25 %. Runtime at 10 km/h assumes 3.6 V per cell and 92 % efficiency. This is a calculation; on-water tests are still ahead.
Flow stays attached to the fin, the shrouded propeller draws water in front of it and throws a narrow jet backwards. The animation is live: speed, RPM and thrust come from the slider above.
Illustrative animation, not CFD. Speed is estimated (±25 %).
The standard propeller is printed, swapped in an evening and is cheap. We are developing an aluminium propeller as an option for riders who want more thrust and full-current running. Speeds below are calculated for 20S.
Slides into the board’s stock fin box. Plate 33 × 3.9 mm, neck 17 × 4.6 mm, secured with a pin. The board stays intact.
A Ø186 / Ø200 ring on seven spokes encloses the propeller. The spokes continue the ribs of the fin’s bullet, so the shape reads as one.
Water fittings and a cable channel are built into the housing. Cooling the controller needs no external tubes on the board.
The 110 KV motor at 84 V holds cruising thrust at 39–45 % throttle. Less current, less heat, more runtime.
The loop is recessed into the edge profile. It doesn’t stick out or snag, and it holds a carabiner.
PETG housing on metal fasteners. Propeller, cap, guard and motor come off separately, and any part can be reprinted.
Fin with motor, power cable and a wireless throttle remote with a display. One main version and two compact logo layouts on the fin.
Fin in CAD: water fittings, cable channel, carabiner loop.
This is the prototype on a board. Yellow PETG housing, Flipsky 7070 110 KV motor with our branding, propeller inside the guard ring.
| Motor | Flipsky 7070, 110 KV, Ø70 × 70 |
|---|---|
| Motor weight | 1.08 kg |
| Battery | 6–20S (motor spec 6–18S) |
| No-load speed at 20S | 9,240 rpm |
| Torque at 100 A | 8.7 N·m |
| Propeller | Ø140 × P77, 4 blades |
| Motor mount | 4×M4, PCD Ø44 |
Choose a battery above and leave your number — we’ll come back with a price and lead time. You can copy the request with your configuration and paste it into the “Project” field.