Live AIS & NMEA view
Connect over Wi-Fi to a pilot plug, AIS receiver, NMEA TCP server or smart pilot plug device and view key movement values clearly.
Live navigation data viewer for Android
Pilot Plug
A clean professional viewer for AIS, NMEA and docking data - made for maritime pilots, captains and bridge officers who need live vessel movement information where it matters.
Pilot plug / AIS / NMEA TCP
KA motion prediction
Docking movement display
Bridge wing visibility
Why Pilot Plug
Navigation data, readable where full bridge systems are not always visible.
Pilot Plug helps show live vessel movement on a mobile Android device - on the bridge, on the bridge wing, during tests, training, monitoring and operational awareness.
COG, SOG, heading & ROT
Course over ground, speed over ground, heading and rate of turn - laid out with large values for quick interpretation under load.
Docking Mode display
Ship-silhouette view using standard maritime color coding - red port, green starboard - with bow, midship and aft movement information when available.
KA motion prediction
Docking Mode B (long press) uses a KA motion model to project heading and motion trends ahead - the same approach used by klaipedatraffic.lt for vessel forecasting.
Independent AIS / NMEA sources
Choose AIS and NMEA sources independently for position and heading - useful when one feed is more reliable than the other for a given value.
Automatic ship detection
Ship dimensions populate automatically from AIS Type 5 static reports as vessels appear in the stream - less manual setup before pilotage.
NMEA FREEZE for logbook
Freeze the live NMEA position values with one tap to capture a precise position entry for logbook or report use - without losing the live feed.
Clean dark interface
High-contrast dark UI with blue accents, large numbers and minimal distraction - designed to read well in real bridge lighting conditions.
Connection presets
Presets for common TCP data sources, or enter your own host and port for onboard testing and professional setups.
AIS Map Mode
Live external AIS targets on an offline map.
AIS Map Mode displays external AIS targets on an offline map, helping pilots and bridge officers understand nearby vessel movement without relying on a continuous internet connection.
✓Vessel outlines, names, movement vectors and vessel-type colours.
✓Available ship dimensions and AIS antenna positions when received from the AIS source.
✓Built-in World Maritime Overview for basic offline coverage.
✓Compatible regional map packs can be downloaded separately when available, adding new areas without replacing the app.
AIS Map Mode is for situational awareness only. Target visibility and accuracy depend on the connected AIS source, received messages, data age and connection quality.
Docking Mode
Built for slow-speed vessel movement awareness.
Docking Mode focuses on the information that matters during close-quarters movement: how the ship is moving now, how the bow and stern are behaving, and how the trend may develop shortly ahead.
✓Ship silhouette with red / green port and starboard coding for instant orientation.
✓Bow, midship and aft motion indications when ship setup data is available.
✓Docking Mode B overlays a KA-based heading and motion prediction for projecting the next 15–90 seconds.
✓Large readable values sized for bridge and bridge wing use.
Onboard Field Validation
Tested during a real low-speed harbor maneuver.
Pilot Plug maneuvering prediction was compared onboard against the vessel’s installed professional bridge navigation equipment during a dynamic low-speed maneuver. The vessel was moving at approximately 1–2 kn, with rate of turn reaching approximately 30°/min, substantial transverse movement, and rapidly changing heading and course over ground.
The important result was not simply agreement of individual numbers.
Both independently generated displays showed closely corresponding whole-vessel motion: bow sweep, stern sweep, angular progression, transverse displacement and, most significantly, a similar effective pivot region as the maneuver developed.
Both independently generated displays showed closely corresponding whole-vessel motion: bow sweep, stern sweep, angular progression, transverse displacement and, most significantly, a similar effective pivot region as the maneuver developed.
Why this matters
During close-quarters maneuvering, the bow and stern can have very different velocities. Pilot Plug does not simply rotate the vessel around its geometric centre. Translation and rotation are combined to represent how different parts of the hull are moving and how the effective rotational geometry develops during the maneuver.
The three observations provide practical field evidence that the maneuvering model behaved consistently through a changing turn rather than matching only a single static moment.
Engineering field observation — not a certification test. Pilot Plug is an assistive situational-awareness tool and does not replace approved shipboard navigation equipment.