Collection: Adrena

Adrena : Tactical Navigation and Routing for Offshore Racing

Adrena is a French software company that has been developing navigation and tactics software for racing sailboats for over 20 years. Renowned for their precision and rich functionality, Adrena programs have become essential tools for professional skippers, race planners, and teams competing in offshore regattas. Skysat supports offshore racers in the integration and optimal use of Adrena solutions to maximize strategic performance.

Weather Routing

Adrena's routing module calculates optimal trajectories based on weather forecasts, boat polar diagrams, and navigational constraints. It's an essential tool for preparing for transatlantic and offshore races.

• Optimal Route Calculation: The routing engine analyzes GRIB files (wind, current, swell) and calculates the best routes in real time or in planning mode. Several algorithms are available to prioritize speed, comfort, or fuel economy.
• Multiple Scenarios: Possibility to compare several strategies (north vs south route, staggered start, etc.) to assess risks and opportunities before the race.
• Dynamic Update : During the race, the routing automatically updates with new weather files received by satellite, allowing the strategy to be adjusted in real time.

Polar Analysis and Performance

Adrena incorporates advanced polar and performance analysis tools to optimize boat tuning and assess potential gains based on wind and sea conditions.

• Polar Editor: Import and edit VPP (Velocity Prediction Program) polars or polars derived from real-world data. Polars can be adjusted according to sea state, sail plan, and load.
• Performance Analysis: Real-time comparison between boat speed and theoretical polar. Performance indicators (percentage of polar achieved) to optimize settings and handling.
• Optimal Wind Charts (TWA/TWS): Visualization of optimal wind angles and speeds for each point of sail, facilitating tactical decisions when changing tacks or sails.

Regatta Management and Tactics

Adrena offers features dedicated to regatta management, allowing you to plan maneuvers, track competitors and optimize strategy in real time.

• Start Line and Laylines: Tools for visualizing the start line, calculating laylines (limit routes for tacking) and predicting the time of arrival at the mark.
• Competitor Tracking: Import and display of other boats' positions (via AIS, race rankings, etc.) to compare strategies and anticipate crossings.
• Replay and Debriefing: Recording of navigation traces and replay of races to analyze tactical decisions and identify areas for improvement.

💡 Skysat's advice

To get the most out of Adrena in offshore racing, ensure you have a reliable satellite connection (Iridium GO, Starlink Maritime) to regularly receive GRIB files and update your routing. Prepare your polar diagrams in advance and test different weather scenarios to anticipate strategic decisions. Skysat can assist you with configuring data streams and integrating Adrena with your onboard instruments.