Indirect escorting with Rotortug.
About leverage: Escort towage
For maximum leverage, the towing point is shifted backwards as far as
Marine pilots require a vector force possible, skeg area is increased at to oppose rudder failures for vessels the expense of maneuverability and at speed. Direct mode application of the skeg is moved as far forward as that vector by a tug is not effective possible. Also the generated towline at speeds >4 knots for ASD and force creates a high heeling moment tractor tugs. To create a sufficiently and the tug’s capability to deal big vector force, naval architects with this heeling moment, limits the use leverage and the tug’s hull generated vector force. In other form hydrodynamics and skeg words, size matters, or more arrangement to generate a vector specifically tug displacement and force. This is also commonly tug stability are key to provide referred to as ‘indirect mode’. 20
effective indirect mode vector