Apparent Wind, True Wind, and Wind Speed Boats

Upwind sails are up so are we going upwind? The instrument says 150 degrees. And down here, it says we're going downwind. So which is it? In this video, we're sailing the Gunboat 66 to settle one of the most confusing topics in sailing: the difference between apparent wind and true wind. We'll break down why your instruments seem to lie, how dagger board trim changes everything, and what it actually means to be a true wind speed boat. CHAPTERS: 00:00 - Intro: Are We Going Upwind or Downwind? 01:17 - Setting Up: Gunboat 66 with Code Zero 02:17 - The Numbers: True Wind 150°, Apparent Wind 125° 03:08 - Dagger Boards: Grip, Slip, and Why They Matter 04:22 - The Simple Explanation: True Wind vs. Apparent Wind 05:30 - Adjusting Boards for Apparent Wind Shift 06:20 - Safety: Why Dagger Boards Prevent Capsizing 07:46 - Cockpit Layout & Slave Rings Discussion 08:33 - Autopilot Disaster: Why Heading Hold is Dangerous 09:13 - What is an "Apparent Wind Boat"? 10:15 - Watching the Apparent Wind Climb 11:20 - Myth Busting: True Wind Aft, Apparent Wind Forward 11:57 - Autopilot Wind Mode Explained 13:03 - Speed Over Ground vs. Speed Through Water 13:50 - True Wind Speed vs. Apparent Wind Speed 14:34 - "We're a True Wind Speed Boat" 14:51 - The Big Lie: Claiming Wind Speed with Apparent Wind 15:25 - Sail Change: Code Zero Down, Gennaker Up 16:43 - Gennaker Up: New Numbers (True 140°, Apparent 90°) 17:33 - Paddle Wheel Problems & GPS Calibration 18:21 - True Wind 9.6 kts, Apparent 6.3 kts – The Mistake Explained 19:50 - Early Morning: Goosewinged in 15 Knots 20:35 - Rain, Reefs, and Hoisting Mainsail Downwind 21:23 - Winch Layout & Flying Jammers 22:24 - Surfing: 9.7 Knots! 22:44 - Heavy Weather: True Wind 20 kts, Apparent 13 kts 23:59 - The "Wind Speed" Trap 24:47 - Using GPS for True Wind Calculations 25:20 - 10 Knots SOG = 10 Knots AWS? No, You're Not Doing Wind Speed 26:27 - Younger Crew in Shitty Weather (The Perks of Skippering) 27:31 - Parking the Boat & Wrap Up WHAT YOU'LL LEARN Why apparent wind and true wind can show opposite directions How to adjust dagger boards as the apparent wind shifts forward The safety advantage of dagger boards over fixed keels Why "heading hold" on autopilot will collapse your spinnaker How to use wind mode (apparent wind angle) correctly The difference between a "true wind speed boat" and everyone else Why comparing speed over ground to apparent wind speed is complete B.S. BOAT FOR SALE The Gunboat 66 featured in this video, Outnumbered , is currently for sale. Make/Model: Gunboat 66 Location: Spain More info https://youngbarnacles.com/gunboat-66-for-sale/ USEFUL LINKS ➜ Supporting blog post https://youngbarnacles.com/ ➜ Want to go deeper? Access our detailed composites videos, project files, and community on the Youngbarnacles Members Hub: https://youngbarnacles.com/plans/all-access-memberships/ ➜ Need world-class engineering for your project? Learn more about our professional design and consultancy services at SYAS Performance: https://syasperformance.weebly.com/ ➜ Free Sailing Library: Check out our free guides on composites, systems, and seamanship: https://www.youngbarnacles.com/resources MUSIC YouTube Audio Library ➜ https://www.youtube.com/ SAFETY DISCLAIMER: PROFESSIONAL WORK This video documents professional marine work with significant risk of injury or vessel damage. This is NOT DIY instruction. You are solely responsible for your own safety and actions. We are not liable for any application of this information. Full Disclaimer: https://youngbarnacles.com/website-disclaimer/