In the mid-1950's Christopher Cockerel came up with his idea of using air between the water and the hull of a boat to reduce drag. 66 years ago #Today, he filed his first patent for the hovercraft
[read more: buff.ly/3mgycWe]
[video: buff.ly/342xxkP]
Conversation
Replying to
Using air to reduce drag can also look like this




