This analysis compares real-world data from the liveaboard cruising community against the proposed specifications for a slow-moving, stable seastead platform (1–1.5 mph / 0.87–1.3 knots).
Average Passage Speed: 4.5 – 6 knots (5.2 – 6.9 mph) for a typical 40–45ft cruising catamaran or heavy displacement monohull in trade wind conditions.
*Hull speed for a 40ft waterline is ~8.4 knots. Cruisers rarely maintain hull speed 24/7 due to sea state, wind angles, and comfort.
Daily Run (24hrs): Typically 100 – 140 nautical miles (115 – 160 statute miles).
This is the single most misunderstood metric by non-cruisers. The "Cruising Lifestyle" is overwhelmingly stationary.
Typical Pattern: Sail 1–3 days (passage) $\rightarrow$ Stay 1–4 weeks (exploring, working, repairs, schooling, waiting for weather windows).
Annual Mileage: Most circumnavigations or seasonal loops (e.g., Caribbean, Med, Pacific Puddle Jump) average 3,000 – 5,000 nm/year. High-mileage boats (delivery/racing) hit 8,000+ nm; "latte cruisers" may do < 1,500 nm.