a mile out on the water is really out there you're not swimming back

There is a form of air blown friction reducing system that has been developed for flat bottom heavy shipping ..the air is bled in a stream of small bubbles from small holes a short distance back from the bow .. unlike this being pressure blown, they are effectively drawn out by the forward motion of the vessel ... The stored air reservoir is only lightly pressurised ..in heavy displacement shipping it can save up to 8- 10%. Significant in a field where improvements of a percentage or more are regarded as significant and worthy of significant expenditures. 🧙🏻‍♂️ This actual high pressure air ride system is used on some of the high speed stealth inshore attack and patrol boats.