Quantum Sails · video

What this video covers

Wally Cross of Quantum Sails presents the numbers-based framework of System Sailing, covering how sail designations (J1, J2, J3, A1, A2) map to wind ranges and crossover charts, and how physical marks and vinyl number strips on deck translate those designations into repeatable trim settings.▶ 0:50 Jib tracks, halyards, genoa and spinnaker winches, the main traveller, backstay batten, vang, outhaul, and running backstays should all carry numbered or colour-coded references so crew can trim to a target setting without looking at the sail.▶ 12:29 Before a race, sailors test settings against a competitor, record the fast number in wet notes, and use that number as a trim target off each tack — starting below the target and building to it as boat speed returns.▶ 4:02 Instruments at minimum require boat speed and compass; true wind direction, speed, and angle enable VMG-based polar targets.▶ 5:52 Crew are numbered by position so the helmsman can move weight quickly with countdown calls (3-2-1) for tacks, jibes, wave sets, and puff responses, keeping manoeuvres proactive rather than reactive.▶ 7:28 Wally Cross demonstrates how to turn these data points into a cohesive strategy for consistent performance on the water.▶ 17:18

More from Quantum Sails

System Sailing 3.3 - Pre Race & StartJul 2020System Sailing - The Mac Race EditionJul 2020System Sailing 3.2 - TacticsJul 2020System Sailing 3.1 - Boat HandlingJun 2020

From Quantum Sails — see the channel’s boat, crew, and every analysed video.