Looks like those cylinders are standing right where there are otherwise shipping containers piled high, deep, and wide.
Eliminate the payload for cylinder sails? Great idea!
Did I go and read the whole article? No. The posted picture speaks for itself or should not have been posted in the first place.
“Looks like those cylinders are standing right where there are otherwise shipping containers piled high, deep, and wide.”
Not all ships haul containers.
“Eliminate the payload for cylinder sails? Great idea!”
A large ship may carry 3 million gallons of fuel. You can calculate the volume.
Real world application of Flettner rotors. An older technology but similar profile.