ClearShipClearShip
ToolsPricingBlog
Sign InGet Started
ClearShip

The complete boat maintenance management platform. Track tasks, collaborate with your crew, and keep your vessel in top condition.

Product

  • Get Started
  • Sign In
  • Pricing
  • Blog
  • Sailing Tools
  • Roadmap
  • Contact

Legal

  • Privacy Policy
  • Terms of Service

© 2026 ClearShip. All rights reserved.

5% of our revenue goes to carbon removal via Stripe Climate.

    Free Sailing Guide

    Sail Trim Optimization Guide

    Get recommendations for mainsail and jib trim based on wind strength, course, and wave conditions. Improve your sailing performance.

    Free to use
    No signup required
    Instant results

    Sailing Conditions

    Sail Trim Recommendations

    Cunningham
    Slightly tensioned
    Outhaul
    Medium tension
    Boom Vang
    Medium tension
    Traveler
    Slightly to windward
    Mainsheet
    Tight, boom close to boat center
    Reefing
    Ready to reef

    About Sail Trim

    These recommendations are general guidelines for cruising sailboats. Always adapt to your specific boat, crew experience, and conditions.

    Remember: Safety first! When in doubt, reef early and maintain control of your vessel.

    Discover More Sailing Tools

    Register for ClearShip to manage boat maintenance, tasks, checklists, inventory, and collaborate with your crew - plus access all sailing tools.

    Create Free AccountSign In

    Unit Converter

    Nautical and metric conversions

    Wind Converter

    Wind speed and Beaufort scale

    Phonetic Alphabet

    NATO alphabet and text converter

    OpenSeaMap

    Interactive nautical charts

    Weather Charts

    European weather and wind maps

    Mayday Emergency

    Distress call generator

    Navigation Calculator

    Course conversion, leeway, and current triangle