A Laser dinghy sailor driving through a wave upwind, spray flying

Small puck. Precise racing.

Centimetre RTK in a sealed puck that floats. €199, yours to keep.

The parts the big systems use.

A dual-band L1+L5 RTK receiver, the same class as the systems used at world championships.

The VMGline RTK puck floating on black, rim-lit, with water droplets
1 cmRTK precision with fix
10 HzPosition, heading and heel
600Boats on one start line
1 dayOf racing on one charge

Specification

The VMGline RTK puck strapped to the foredeck of an Optimist, with the fleet behind
Positioning
RTK, L1+L5 GNSS. 1 cm horizontal with fix.
Rate
10 Hz position, heading and heel, stamped with GNSS time.
Sensors
Compass, gyro and accelerometer. Bow position computed per class.
Link
4G today. A local mesh link is in development for courses beyond coverage.
Battery
A full race day on one charge. Magnetic charging.
Housing
Sealed, waterproof, floats. Lanyard loop.
Corrections
From the club base station within 10 km. No SWEPOS subscription.
Price
€199 once. Tracking service €5 a month in the months you race.

Prototype hardware. Receiver figures are from the RTK receiver specification.

A Laser sailor rounding a red inflatable mark at speed

World championship precision.

The start is decided on the puck at 10 Hz against GNSS time. A lost 4G connection never costs a sailor a call.

Buy it once.

€199, plus €5 a month in the months you race. Pause it over the winter.

The VMGline RTK puck on an Optimist foredeck

Works at every club.

Any club with a VMGline base station can enable your puck for their event.

The VMGline base station on a clubhouse railing

Put your fleet on the start line in 2027.

We are looking for dinghy clubs and class associations to run the pilot. Email your club name, your role, approximate sailor numbers and the regattas you have in mind.

Base-station pricing and pilot terms are confirmed with pilot clubs. Built in Sweden.