Digital Cockpit Utilities for Real-World Seamanship
Designed by commercial RYA Yachtmasters and sports science coaches, the Skipper’s Toolbox™ delivers offline-capable decision matrices, anchor scope algorithms, engine checklists, and sea-time logbook auditing—directly in your browser with zero app store downloads required.
All Winds Skipper’s Toolbox™ Digital Cockpit Utilities for Real-World Seamanship
Grounded risk scoring, anchor catenary algorithms, and compliant sea-time logbook exports.
🌐 Localization Roadmap: The current interface is in English, with a dedicated German (DE) language version currently in development for our V1.0 release.
How the Skipper’s Decision Matrix™ Works: Objective Go / No-Go Guidance
Traditional seamanship decisions can easily be clouded by fatigue, schedule pressure, or crew expectations. The Skipper’s Decision Matrix™ replaces subjective guesswork with a quantitative traffic-light risk engine. By evaluating human factors, environmental forecasts, destination hazards, and safety buffers, the matrix dynamically calculates an objective operational status—transitioning from a neutral state to an instant Green Light (Safe to Proceed) or Red Light (High Risk — Stay in Port).
📖 Want the Science Behind the Tools?
Curious how sports science, human factors, and risk mathematics were used to build the Decision Matrix™? Read our full editorial guide: Cockpit Seamanship Toolkit: The Philosophy Behind the Decision Matrix™.
Cockpit Utilities & Onboard Reference
A complete suite of offline digital tools designed for practical seamanship, passage planning, and vessel management:
🚥 Skipper’s Decision Matrix™
Quantitative risk scoring for weather exposure, crew experience, night passages, and destination hazards before you slip your lines.
📐 Anchor Scope Calculator
Fast mathematical calculations for chain length, water depth, bow freeboard, and catenary curve under varying wind loads.
📑 Logbook Tool & Sea Time Generator
Digital deck log featuring harbour-aware mileage algorithms, engine meter tracking, and compliant PDF sea-time document generation.
🔧 W.O.B.B.L.E. Engine Check
Digital step-by-step pre-departure inspection checklist for marine diesel engines (Water, Oil, Belts, Bilge, Look, Electrical).
🔄 Prop Walk & Handling Predictor
Calculate single-screw stern kick and blade rotation direction to plan stress-free close-quarters marina manoeuvres.
📋 Briefing Cheat Sheets
Editable safety, watchkeeping, and departure briefing templates to customise for your vessel and crew.
🛒 Shopping & Task Lists
Create, manage, and share boat preparation and provisioning checklists easily with your crew.
💨 Engine Smoke Colour Diagnoser
Quickly diagnose what exhaust smoke colour (black, white, or blue) indicates about your diesel engine health.
📖 Quick Reference Guide
Instant access to COLREG rules, sound signals, navigation lights, day shapes, and buoyage systems.
🗺️ Open Sea Map Chart Box
View your position and surrounding area (designed for situational awareness and passage planning).
Technology & Offline Data Privacy
Quantitative risk assessment for coastal passages and crew management. Evaluates human factors, tidal windows, crew fatigue, and weather exposure before you slip your lines.
How to Add to Your Home Screen
| Platform | Step 1 | Step 2 | Result |
| Apple iOS (Safari) | Open toolbox.allwindsadventures.com in Safari. | Tap the Share button (box with upward arrow). | Tap “Add to Home Screen”. The app icon installs on your phone. |
| Android (Chrome) | Open toolbox.allwindsadventures.com in Chrome. | Tap the Three Dots menu in the top right. | Tap “Install App” or “Add to Home Screen”. |
Version Updates & Release Notes
Continuous Development & Technical Release Notes
We continuously refine the All Winds Skipper’s Toolbox™ based on real-world sea trials, feedback from qualified skippers, and evolving international maritime regulations. From harbour-aware mileage algorithms and Swiss Hochseeschein (CCS / SYA) compliant PDF sea-time logging to offline IndexedDB data resilience, every update is designed to improve cockpit safety, risk management, and passage auditing.
Review our full version history and feature release notes below:
v0.9.31 — Logbook Engine Hours Display & Harbour-Aware Mileage Refinements
- Enhanced In-App Logbook Engine Display: Updated deck log entry cards so cumulative engine meter readings display clearly alongside every recorded fix and leg metric card.
- Dedicated Engine Column in PDF: Split the PDF sea time table to feature a dedicated
Enginecolumn (e.g.2531.1h), keepingWind & Barodistinct and uncrowded. - Harbour-Aware Leg-by-Leg Mileage Algorithm: Replaced flat percentage estimates with a dynamic leg-by-leg algorithm:
- Pure Sail: 100% allocated to sail distance when engine hours remain static.
- Harbour & Low-Speed Manoeuvring: Low-speed legs (≤ 3.5 kts) scale engine speed to 1.5–3.0 kts to accurately reflect engine warm-up, idling, and slow harbour transits without over-allocating engine miles.
- Open-Water Cruising: Open-water motoring legs cap estimated motor speed at 6.0 kts.
- Hard Cap: Engine distance per leg is strictly capped so it can never exceed total GPS distance for that leg.
- Standardised 3-Digit Longitude Formatting: Formatted all longitude coordinates across the app (GPS auto-fill, map tooltips, and PDF entries) with 3-digit degree padding (e.g.
018° 41.434' E). - International Terminology: Removed German terms across the UI, schema metadata, and PDF exports, standardising on Days at Sea. Renamed “Starting Harbour / Base” to Starting Location.
- PDF Box 1 Grid Restructure: Reorganised Vessel Details into a 2-column grid across 4 rows with expanded vertical clearance (24 mm) to prevent longer location names from overflowing box boundaries.
- Single-Location Skipper Credentials: Removed qualification titles and license numbers from the bottom signature block, displaying them exclusively in Box 2 at the top.
v0.9.30 — Internal Build Target
Pre-release build for testing PDF layout grids, harbour speed parameters, and coordinate formatting prior to consolidating into v0.9.31.
v0.9.29 — PDF Visual Contrast & Fill Render Fix
- Container Fill Colour Reset: Resolved an issue where
jsPDFstate persistence caused summary boxes 2 and 3 to render with dark backgrounds. Explicitly reset fill (#F8FBFF) and border drawing (#D0E0F0) before rendering each block, ensuring high-contrast dark text (#2C3E50) across all PDF containers.
v0.9.28 — Streamlined Candidate Workflows & Audit Transparency
- Simplified Candidate Entry: Removed candidate passport numbers, DOBs, and nationalities from the Yacht Details form and PDF certificate, requiring only Candidate / Crew Name.
- Fix-Level Engine Meter Audit: Added cumulative engine meter readings (
Eng: XXX.Xh) to every individual fix line in the PDF log table for audit verification. - Simplified Handoff Checklist: Reduced the PDF verification notice to three practical steps: 1. Print paper copy. 2. Skipper wet signature in ink. 3. Apply vessel stamp (if available).
- Qualifications Line Spacing: Stacked qualification titles and license numbers on separate lines to comfortably accommodate longer certifications (e.g. Yachtmaster Coastal Commercially Endorsed).
v0.9.27 — Swiss Hochseeschein (CCS / SYA) & International Compliance
- Expanded Vessel & Registration Data: Added Flag State, Official Registration Number, and CE Design Category dropdown (Cat A Ocean through Cat D Sheltered).
- Skipper Credentials Module: Added Exact Qualification Title, License / Certificate Number, and Issuing Authority fields (auto-populating VHF emergency scripts and PDF certificates).
- Days at Sea Tracking: Added explicit tracking for Days at Sea (days underway > 30 mins) alongside Distance Under Sail vs. Engine.
- Compliant PDF Layout: Redesigned the sea time certificate into structured compliance blocks (Vessel Details, Skipper Credentials, Candidate Summary, Log Table, and Attestation).
v0.9.26 — SEO & Generative AI Discovery Optimisation
- WebApplication Schema Integration: Upgraded Schema.org JSON-LD structured data from generic software to
WebApplication, linking it directly to All Winds Adventures. - Explicit Feature Indexing: Formally indexed the Skippers Decision Matrix™, Anchor Scope Calculator, W.O.B.B.L.E. Engine Checks, Digital Deck Log, and Watch Handover inside a feature schema array.
- Targeted Conversational FAQs: Added structured Q&A schema blocks targeting natural-language search queries such as “Is there an app to help with sailing decision making?”
- Favicon Standardisation: Added explicit 32×32, 192×192, and 512×512 PNG favicon tags to prevent desktop browser 404s and secure Google Search visual icons.
v0.9.25 — Schema Restructuring (Internal)
Initial migration and refactoring of structured JSON-LD data to support dual search engine indexing and AI crawler discovery.
v0.9.24 — Baseline Application Shell
- Resilient Vault Storage: IndexedDB wrapper (
localforage) with automaticlocalStoragemigration fallback for zero-signal offshore data persistence. - Skippers Decision Matrix™: Traffic-light risk engine evaluating human factors, environment, destination exposure, and safety mitigations.
- Anchor Scope & Tidal Tools: Rule-of-12ths tidal calculator and depth/freeboard scope calculator (3:1, 5:1, 7:1).
- W.O.B.B.L.E. Engine Checklists: Daily 6-point engine check widget, smoke colour diagnostics, and trip engine hours counter.
- PWA Engine: Service Worker caching (
sw.js), offline Leaflet map tile support, and Watch Handover JSON file import/export via AirDrop, Bluetooth, or WhatsApp.
Terms of Use & Licensing
The All Winds Skipper’s Toolbox™ is 100% free to use for private skippers, individual sailors, and recreational crews.
🎯 Decision Support for Developing Skippers
Built for skippers building real-world experience who want an objective way to evaluate weather, fatigue, and harbour exposure before slipping their lines.
A Tool for Decision Support, Not a Guarantee: The matrix helps eliminate human error, schedule pressure, and cognitive bias when planning a route. It does not guarantee safety or replace practical seamanship—the final decision and the skills required to safely pull off the passage lie entirely with you as skipper.
Yes. It is 100% free for all private skippers and recreational sailors. If you represent a sailing school, charter fleet, or commercial training company wanting to use the app commercially, please contact us for commercial licensing permission.
The Toolbox is built as a Progressive Web App (PWA) with offline caching. Once you open the app in your browser or save it to your home screen, all calculations, decision matrices, and logbook functions operate completely offline without cellular coverage.
No. You can use it directly in any modern browser (Safari, Chrome, Firefox) or tap “Add to Home Screen” on your smartphone or tablet to install it instantly without going through an app store.
In Switzerland, candidates must submit their official physical booklet (Fahrtennachweis Büchlein) with original ink signatures. The Skipper’s Toolbox™ generates the detailed HA-V Anhang 3 compliant logbook extracts (Schiffslogbuch) required by CCS and SYA auditors to verify engine vs. sail distance, hourly fixes, and days at sea. For non-Swiss international qualifications (RYA, MCA, ICC), the PDF export serves directly as a complete digital sea-time logbook.
Absolutely. All your logbook data, vessel details, and GPS fixes are stored locally on your own device using secure browser storage (localforage). We do not store your logbooks on external servers, sell your data, or track your movements.
You can export your logbook files directly as JSON data from inside the app and transfer them to another device or skipper via AirDrop, WhatsApp, email, or Bluetooth.
No registration is required. You can launch and use all tools immediately in your browser. We offer an optional email newsletter if you want major feature updates, but it is completely voluntary.