A motor and generator can be the electromechanical device. When the energy conversion is electric to mechanical, it's a motor. When the energy...
Why not use sail as primary propulsion and charge batteries from a paddle-wheel generator/motor? Sail can produce much more power per M^2 than...
Navigating a cargo ship is a control system problem, not AI. Enough rules can be written to deal with use cases. Loss of comms or mechanical...
The blade is a foil, so the blade actually slips less due to lift generated as the blade moves away from the boat. This gives the appearance of...
Wood strip construction will handle compound curves better than plywood.
I would use a Dremel high speed drill with a flush cut tip to remove the screw head. Recover the nut / anchor with flexible grabbers and a $30...
Lines drawing are for finished dimensions. Offsets take into consideration the tangent of the lumber in addition to its thickness. This was one of...
I can't believe I missed this thread since I design and build canoe/kayaks. From my experience kayaking, the water depth affects the drag on the...
Visio is a great tool. The professional version has electric / electronic symbols. It can also be used for MANY other simple drawing types.
I noticed that too. The longer effective lever arm with the wide stern hull allows the crew counteract the sail with a lighter keel.
There is a skin on frame sailing kayak design on the market. It might give you the answers you seek. Kayaksailor Sail System...
Here are lines drawings for two catamarans. Tornado Experimenting with an old idea | Port Townsend Watercraft BLOG...
A sailing hull is designed for a range of conditions. Optimizing one mode of operation will cause a performance degradation in another. For a...
Canoeing, kayaking and rowing are propulsion methods. So a single boat could be a canoe, kayak or row boat.
The canoe stroke involves shifting body weight, which causes the canoe to pitch. Pitching can get so violent that the bow submerges. An inverted...
I would think the fresh water in the pool would be pumped into a holding tank prior to diving. Sea water would be pumped out / drained once back...
The picture was interesting, so I visited Lobanov Design too see more. The Phoenicia is very artistic. The tumblehome cross section loses righting...
I've heard of stepped hulls for high speed planing hulls. They look like fish scales and have vents to allow air to be sucked under the hull as...
I've worked on NASA contracts where the contractor patented original methods of achieving the stated design goals, but NASA was delivered the...
Never heard of dead weight coefficient. How is it defined?
