Here's a complete, self-contained HTML document with all the Froude scaling results, test guidance, and recommendations. Save it as something like `seastead-model-test.html` and upload it to your site. ```html Seastead 1:10.5 Scale Model — Froude Scaling & Sandy Hill Bay Test Plan

Seastead 1:10.5 Scale Model — Froude Scaling & Wave Test Plan

Model testing in Sandy Hill Bay, Anguilla  ·  Scale ratio λ = 10.5 (model = full scale ÷ 10.5)

1. Froude Scaling Rules (λ = 10.5)

Froude scaling matches the ratio of inertial to gravitational forces, which is the correct similarity for waves, buoyancy, heave/roll/pitch, and sloshing. Derivation of the acceleration result: acceleration scales as L/T²; L scales by 1/10.5 and T² scales by 1/10.5, so acceleration scales by exactly 1.0 — the model is a true "g-copy" of the full-scale craft.

QuantityFull scale → Model (multiply by)Model → Full scale
Length, height, wave height, draft0.09524 (÷10.5)× 10.5
Area÷ 110.25× 110.25
Volume, displacement, weight, force÷ 1,157.