Looks like this only works for bulk haulage and wouldn’t be compatible with intermodal freight (shipping containers)
Imagine reinventing sails and thinking you’re innovating.
Hundreds of years of innovation in water travel, and we come back to a sail. Granted, a metal one, but still a fucking sail.
There’s a reason they quit, though. It’s slow and doesn’t let you go in every direction. The midline area of earth has winds that move mostly towards west, while the north and south portions blow mostly east.
For those curious, these sails save 12 tons per day. The average cargo ship uses around 200,000 tons per day, so around 6% better fuel economy.