slmar.co • May 25, 2026 • study + PDF + interactive report
A geometry / seasonal-β / forecast-α decomposition of optimizer fuel-ROI across ocean regimes, under ERA5+GLORYS replay against a pre-registered protocol. The forecast-dependent component a real-time service adds is under 1% of fuel — and that is a hindcast upper bound.
slmar.co • May 22, 2026 • study + PDF
Reconstructing a 22° synchronous-roll resonance on an MR tanker in a long quartering swell — from ECDIS track, ERA5 wave spectrum and stability data — and what it reveals about roll-model fidelity.
slmar.co • May 21, 2026 • study + PDF
Independent cross-validation of WindMar's routing engines on five diverse routes against a commercial weather-routing reference — comparing route geometry, weather conditions encountered, and ETA. No fuel comparison.