HomeCalculatorsEngine - ISO 3046 MCR Derating

Engine - ISO 3046 MCR Derating

Engine MCR derating for non-standard ambient per ISO 3046 - inlet T, pressure, humidity.

MCRDeratingISO 3046
Derated MCR
11,592kW
Formula, assumptions, and limits

ISO 3046 reference: 25 °C, 1.0 bar, 30 % RH, SW 25 °C. Tropical derating 5-10 %. Design MCR ≥ service power × safety margin accounting for these.

Symbol legend

SymbolMeaningUnitSource
Air-temperature factor - ISO 3046
Sea-water factor - ISO 3046