Escort Tug - Operating Speed Window

Operating-speed window of an escort tug based on rudder-direct / indirect assist mode - the governance of escort missions for laden tankers.

TugEscortOSV

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

v = f(\text{tug type}, \text{assist mode})

Symbol	Meaning	Unit
$ASD$	Azimuth Stern Drive
$Indirect$	Tug hull used as rudder at speed

Source: ISPO Escort Tug Guidelines

Operating-speed window of an escort tug based on rudder-direct / indirect assist mode - the governance of escort missions for laden tankers.