3 ms·
Fundamentally, sailing is extracting movement from the relative movement of two fluids. This is done by putting an vehicle at the boundary of the fluids with a
by twp 3y ago
Fundamentally, sailing is extracting movement from the relative movement of two fluids. This is done by putting an vehicle at the boundary of the fluids with a wing in each fluid in such a way that the vehicle moves.
If you use wing-in-ground-effect then you are in a single fluid, where there is no relative movement, so you cannot extract energy from the relative movement.
Put more simply, you need something to push against, so you need at least part of the vehicle in each fluid.
- zardo 3y agoYou can also extract energy by moving between two fluids in relative motion. If you count that as sailing, this is the fastest sailing vessel. https://youtube.com/watch?v=4eFD_Wj6dhk https://youtube.com/watch?v=4eFD_Wj6dhk
- seabass-labrax 3y agoThat must be the most amazing RC vehicle flight I have ever seen footage of; thank you for the link!