Heave Compensator - Stroke Length

Active heave compensator stroke length from significant heave amplitude + safety margin.

Heave compensationStrokeCrane

Sea state HsmShip heave amplitudem

Required stroke: 7.5m

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

s_{stroke} = 1.5 \cdot 2 A_{heave}

Symbol	Meaning	Unit
$A$	Heave amplitude	m

Source: NORSOK N-003 / DNV-ST-E275

In short

Active heave compensator stroke length from significant heave amplitude + safety margin.

Learn the theory Subsea, Pipelay and Offshore Installation