Replenishment at Sea Systems - Fuel / Liquids (RAS-L)

RAS-L Operation

For the Abeam Method a tensioned support line (spanwire) is tensioned between the delivering and the receiving ship. Transfer of liquids is done via hoses that are suspended in loops by trolleys on the spanwire. This method is suitable to transfer all types of liquids (diesel, aviation fuel, water) each using a separate hose selected to meet the required capacity.

The Astern Method uses a floating hose that is paid out and connected to the receiving ship, steaming at a safe distance behind the delivering ship. Automatic approach and stopping of the winch drum in the correct fuelling position is included in the Bosch Rexroth system design, as is an emergency hand drive.

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