The log is ready for the first entry.
Nav Desk
Tools for primary data handling during a passage and while planning it.
Simple functional techniques for solving navigation tasks and giving seafarers practical prompts for more comfortable sailing and communication.
Local time
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UTC
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Work panel
Nav Desk tools
Larger tools are available on separate pages. Quick functions stay below.
Cashbox
Ship Cashbox
Chain-save flow: local draft, duplicate-free sync, and final settlement.
Position
Location Plotter
GPS, COG/SOG, wind, wave, pressure, sea temperature and onboard time in one compact panel.
Comms
VHF and message templates
Radio spelling, vessel profile and working radio exchange formats.
Water
Tides and passage window
Preliminary depth, tide and safe passage timing checks.
Route
Great circle and rhumb line
Distances, true courses and intermediate passage coordinates.
Log
Watch log
Watch schedule, current shift and working passage notes.
Training
Training games
Maritime game trainers for Sea Speak, VHF, short watches and mistake practice.
Watch log
Current watch and passage entries
A working log for situation notes, dead reckoning, watch changes and passage events from a few hours to a month.
Watch setup
Passage, crew and watches
Set the date, crew, mode and watch type. Everyone is included in the schedule.
Manual schedule
Add watch periods manually. Rest and live watch will follow these periods.
Now
Current watch
Time: —
Leader: Not assigned
Crew: Not set
Quick entry
Situation and dead reckoning
Feed
Latest entries
Tides
Safe passage window calculation
A tool for preliminary passage planning in areas with noticeable water-level changes and depth constraints.
Data mode
Next high water: —
Next low water: —
Now: —
Station: —
Passage
Safe passage window
Waiting for calculation.
Enter depth, draft and under keel clearance.
Charted depth + tide = available depth.
Required depth: —
Minimum available depth: —
Maximum available depth: —
Tide events
Tide events for the day
Select a place and date to load tide events.
Reference information and preliminary calculations only. Verify all data against official sources and actual conditions before navigation decisions.
| Time | Tide event | Height, m |
|---|---|---|
| No tide data loaded yet. | ||
Into the ocean
Orthodrome and loxodrome
Calculation of true courses, distances, and intermediate coordinates between departure and arrival positions for sea and ocean passages.
From
To
Enter coordinates for two positions.
Orthodrome
Distance: —
Initial true course: —
Final true course: —
Loxodrome
Distance: —
Constant true course: —
Route points
Orthodrome points
| Point | Latitude | Longitude | True course | From start, nm |
|---|---|---|---|---|
| Route points have not been calculated yet. | ||||
VHF communication
Working radio exchange and standard message formats
Help with preparing short VHF radio messages: marina calls, vessel traffic service (VTS) calls, coast station calls, and message formats for distress, urgency, and safety traffic.
For radio
Radio spelling
Converts words, names, call signs, and numbers into letter-and-number spoken form for English radio communication.
Enter a word or phrase in Latin letters.
Communications
Vessel profile and working radio templates
Prepare vessel data, review the basic radio exchange order, and build working call templates with the main details inserted.
Vessel profile
Data for insertion
All fields are optional. If not filled in, default training values are used.
—
Vessel name: —
—
Call sign: —
—
Fill in the fields or use the default training vessel.
Radio exchange order
Standard call structure
A working sequence for building routine radio messages.
1. Who you are calling
2. Who is calling
3. Position or context
4. Request or intention
5. Additional details
6. Transmission ending: over / standing by
Call
Marina entry request
Initial marina call before entry and a request for further instructions.
Berth
Berth request
Request for an available berth with short vessel details.
Reservation
Reservation confirmation
Short confirmation of a reservation and berth request on arrival.
Service
Fuel, water, electricity
Request for basic services after berthing or before entry.
Initial call
Initial VTS call
Initial call to vessel traffic service with short vessel identification.
Position
Position report
Current position, course and speed report.
Entry
Entering traffic area
Report of entering the traffic area and further intentions.
Information
Traffic information request
Request for traffic information and passage recommendations.
Call
General coast station call
Basic call to a coast station with vessel identification and purpose of call.
Information
Port information request
Request for current entry, weather, or port condition information.
Assistance
Request for practical assistance
Request for local assistance without declaring distress or urgency traffic.
Connection
Relay / connection request
Request to connect to a required service or relay a message through the coast station.
Mayday
Distress call
Full basic distress signal template.
Vessel name: —
—
Call sign: —
—
Mayday Relay
Mayday relay
Relaying a distress message for another vessel.
Distressed vessel: —
—
Distressed vessel call sign: —
—
Mayday
Position and assistance required
Position, persons on board, and assistance required.
Pan-Pan
Medical / urgent assistance
Urgency template without immediate danger to the vessel.
Pan-Pan
Loss of propulsion / urgent situation
Urgency message for loss of propulsion, manoeuvrability, or another serious problem.
Sécurité
Navigational warning
Warning about a navigational hazard.
Sécurité
Weather / local hazard
Message about a weather-related or local hazard to other vessels.
