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Introduction | News | User Interface |Integration and Automation
Planning Application | Route Planning and Navigation | Chart Display
Chart Formats | Specialist Requirements | Download | Contact Us
Henry provides a variety of tools to support the full range of passage planning, navigation and other chart operations. The system can manage an unlimited number of points, lines, boundaries, routes and has many other features, including:
- Distance and Timing calculation
- Chart annotation (points, lines and boundaries)
- Great Circle and Rhumb lines
- Parallel indexing and clearance bearings
- Alarms and warning systems (cross-track errors, boundary warnings, etc.)
- Tidal data integration
Route Planning
It's very straightforward to create and edit routes in Henry. They can also be displayed in a variety of ways, including printed reports. Arrival alarms and cross track error alarms can be set up. Estimated speed and arrival times can be set for each leg of a route. As speeds or times are entered, Henry will automatically adjust speed and arrival times as appropriate along the route in order to ensure the route stays consistent. This allows the navigator experiment with "what-if" scenarios to determine the best speeds and times to meet the ship's schedule.
Ship Display
A ship can be displayed in a variety of ways, using symbols or a vector outline. On appropriately scaled charts the ship can be drawn to scale. The ship can be positioned manually or via the NMEA interface (notice in this picture how the ships velocity vector and heading are slightly different). Any number of ships is supported. One of these will normally be designated the "own ship" of the navigator. A large amount of information is available for own ship, including the course and distance to any point, approach and arrival alarms, corrections for the ships deviation table, and so on. Henry includes a model of the earth's magnetic field and calculates magnetic deviation at any point (and time) to an accuracy of about 15'. Using this, manual observations can be mapped directly onto a chart.
Route Monitoring
As a ship follows a route, the route monitor window allows the navigator to see the estimated arrival time of the ship to each waypoint based on the ship's current speed and to see when the ship did actually arrive at past waypoints. These times are shown alongside the planned time so that the navigator can easily see how they are actually doing compared with the planned estimates.
Track Log
A ship's movements can be automatically recorded in a log. This uses a precision algorithm guaranteeing recorded positions to within 10 metres along/across the real track. The log is stored as an overlay document and contains information about the ship's position, course and speed. The track log is displayed both on the chart view and as a list of tick marks in a separate view. The interval between tick marks can be set to a number of minutes or a distance. Changes in navigation status are also displayed on the track.
Wheelover
A wheel-over can be created for any waypoint on a route (except start and end). Wheel-over arc is calculated from the radius of turn in a particular waypoint. The radius can be changed by simply dragging the arc. If the turn is not possible (radius too big, overlapping turns etc.) this is indicated on the chart. Route ETA and safety calculations take wheel-over into account.