![]() Spaceships aren't ships, they're more like railroads. The killer unit might actually be a laser submarine which can blast away from the surface, then dive down for cooling/shielding/stealthy movement to another location.Īssuming really realistic stuff, some principles, which won't tell you what space is like, but can tell you what it won't be like: And planetary units have much bigger heat sinks than anything mobile in space. ![]() Lasers don't significantly fight gravity. ![]() Of course, that doesn't deal with any active detection ability since if you assume everybody knows where you are anyway, you can light up the battle area with as much active detection as you want.īest stealth in space would be to run under a false flag and then once a ship joins in the combat, it's cover is blown. The length of that delay would be in the range of the time it takes light to reach their sensors and for it to notify the person you are trying to avoid. You wouldn't keep them from being able to figure out you were there, but you could possibly delay when they figured out where you were. In cases where such tech is known, both sides (and especially defenders) will have plenty of sensors to watch from all directions and figure out location and movement. It is doubtful that this would be very effective in anything other than a split second obfuscation of movement for short fast slugfests. There are probably methods of keeping your ship from being easily observable to a certain direction for a limited amount of time. If the crew had a more comfortable room temperature, the Oscar could be seen from even farther away. If the Oscar's crew was shivering at the freezing point, the maximum detection range of the frigid submarine would be 13.4 * sqrt(1510) * 2732 = 38,800,000 kilometers, about one hundred times the distance between the Earth and the Moon, or about 129 light-seconds. So on average the projected area would be 1510 square meters ( / 2). If it was broadside the surface area would be approximately 2770. If it was nose on to you the surface area would be 250 square meters. If the ship is a convex shape, its projected area will be roughly one quarter of its surface area.Ī Russian Oscar submarine is a cylinder 154 meters long and has a beam of 18 meters, which would be a good ballpark estimate of the size of an interplanetary warship. T = surface temperature (Kelvin, room temperature is about 285-290 K) The maximum range a ship running silent with engines shut down can be detected with current technology is:
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