We are working on a seastead design. The goal is to design our seastead such that all the parts can pack into a single a High Cube 45 foot container which has: width 7.7 ft height 8.9 ft length 44.6 ft max weight: 62,000 lbs Above the water there will be a big equilateral triangle frame, 44.0 feet on a side. The triangle frame is also the wall of the living area and will be 7 feet high (floor to ceiling). It will be enclosed and the whole inside the living area, except coming in 5 feet on each side of each corner there will be outdoor covered deck with railing. On the rest of the sides (except in the center back where the dinghy is) there is a 3 foot wide walkway with railing that is attached to the outside of the wall. So between the covered corners and the sides the walkway goes around most of the seastead. Also a door for each of the corners. There are 3 legs/floats/foils/wings that provide the buoyancy, so it is a bit like a trimaran but with a very soft ride. Each leg/wing will 14.5 feet long and have a NACA 0030 foil shape with 8.5 foot chord except that the last 0.5 feet of the thinnest part will be removed, so withe foil does not come to a point at the trailing edge and fits within 8.9 feet hight of container. Each of the 3 legs will be attached to the underside of the big triangle near one of the 3 points (but the total top of the leg will be inside the triangle) and going down so that the lower half is in the water. This makes for a "small waterline area" similar like a small oil platform but one that can move through the water easier because of the foil shape. The 3 legs will all be parallel with the blunt or "leading edge of the wing" side facing forward so it is low drag for the seastead to move forward. Each leg will be 50% under the water (so 0.5 * 14.5 feet) and the top 50% out of the water. On the top half of the front of each leg, so the top half that is out of the water, will be a built in ladder. The reason for these sizes for the triangle and legs is so they can pack into a container nicely. Imagine the 3 legs end-to-end with thin/trailing-edge of foil up on the right side of the container. Then the 3 frame/wall sections along the left side of the container. There should still be lots of room in the center of the container for all the other parts. There will be 6 RIM drive thrusters of 1.5 foot diameter, one on each side of the 3 legs/wings about 2 feet up from the bottom. These RIM drives will have the flat sides toward the front and back of the seastead. There will be a conduit/pipe welded to the back of the trailing edge to take electrical wires down to the thrusters and active stabilizers. There will not be any "through hulls" in the legs. The legs will also have multiple airtight compartments each for safety. On top of the roof there will be solar all over. Behind the back near the center will be two supports going out and 2 ropes going down to a dinghy. The dinghy is a 14 foot RIB boat (deflated for shipping) with an electric Yamaha HARMO outboard. It is sideways against the center of the backside of the living area. When the seastead is moving forward the dingy is shielded from the wind by the living area. Also behind the back on the left and right of the dinghy will be a deck that is 5 feet wide extending beyond the back of the triangle. There are 3 stabilizers that look like a little airplanes, one attached near the back of each main seastead leg. The little airplane has a 10 foot wing-span, 2.0 foot chord, the body 6 feet long, and the elevator has a 2 foot wing-span and 6 inch chord. A small actuator makes the elevator angle up or down so it can adjust the angle of attack of the main wing of this stabilizer without needing a large actuator. This is really the "servo tab" idea. While the thick part of the leg is thick the back where the airplane will attach is very thin. And to get the airplane's center of lift to balance on the pivot a notch into the front/center of the wing only has to go about 25% of the chord of the wing. About 25% of the displacement will be for LiPo4 batteries which will be put low in the 3 legs. Each leg will have its own charge controller and inverter so there is triple redundant power on the seastead. Also, the thrusters and active stabilizer for a leg will get power from that leg's inverter or batteries. So the 3 stabilizers and 3 pairs of thrusters will have independent failure modes as far as power. When the seastead is going to be staying in one place for awhile, we can put down 3 helical mooring screws and give the seastead tension legs so it becomes nearly stationary when parked. Around the top of the walls there will be a track that a kite flying device can hold onto (curved at the corners so it can go around). Two seasteads will be able to connect together with a walkway, one behind the other, so that while underway people can move between seasteads, enabling a real community. The two computers for the two seastead will both work thrusters and stabilizers to minimize the movement of the walkway, particularly when warned that someone will be on it. We first want a "minimal viable product" type seastead. The above with a fixed stabilizer (so heave plate), no tension leg, no kite robot, no ship to ship connection, and no convoy mode is enough to start. It will be a comfortable, spacious, low cost, solar powered yacht. My kids and I will have fun with it and it could probably even start selling, once sea trials and all are done, just like that. I think these optional extras for the seastead make it more fun and compelling: http://seastead.ai/ai/stabilizer.trimaran.html http://seastead.ai/ai/tension.leg.structure.html http://seastead.ai/ai/kite.robot.core.html http://seastead.ai/ai/ship.to.ship.transfer.core.html http://seastead.ai/ai/convoy.mode.core.html It should make the seastead very stable when moving, very stable when parked, have a great backup propulsion method, and let a community of seasteads work together. What do you think?