Thank you for your answers, this operation is located offshore of Africa, but oil tankers fleet is international. Helicopter is S76. I assume that the same norms (ie cap 437, ICAO annex 14...) than with helidecks ops would apply here, but with some more restrictions.
I already have a brochure "guide to helicopter/ship ops" from the International Chamber of Shipping, but it is vague about sectors and structural resistance.
Sorry Rick, I would like a private message, but I am not clever enough for this facility on this forum
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