ALP longdistance tugs in storm

The Ulstein designed, ultra-long distance towing vessels, ALP Keeper and ALP Sweeper, of ALP Maritime's 'Future class' of vessels towed an FPSO from Singapore to Angola in a spread during Q2 2018. ulstein.com/blog/2018/statements-from--x-bow-users

[@waynep343]

just curious.. do you add some kind of pinger to the tug boat hulls to ping the course heading underwater.. so submarines nearby know its a tow in progress and not to surface or run their periscope up to have a look.. i think back to the submarine that snagged the tow line off the coast of southern california a few decades ago. could be as simple as a solenoid banging a plunger on the tug boat hull .. it does not have to be a constant noise.. every 4 or 5 minutes. would be enough to tap out the heading. not that submarines need the assistance..

[@alpmaritimeservicesb.v.7508]

thank you for that comment! We have no such things installed on our tugs to be honest. Usually submarines are very good in detecting ships, especially ones that are towing a very large, heavy object with 24000 BHP :-)