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When are Turreted Railgun better than Spinally-Mounted Railguns?

Why build any long barrel, why any big gun? Your question sounds as if it were irrelevant how long the barrel or how big the gun is, but it absolutely is not. I don't even need to go into any reasons: ...
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When are Turreted Railgun better than Spinally-Mounted Railguns?

Railguns are heavy Railguns need to be very strong. Whenever one is fired, the two rails create enormous magnetic forces which try to push them apart. To avoid bending the rails need to be strongly ...
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2 votes

When are Turreted Railgun better than Spinally-Mounted Railguns?

Size of ship My small, lightweight, fast-moving ship can only support a spinal mounted railgun because the kickback of any non-spinally-centered shot would induce a spin. I also need the potential ...
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  • 236
1 vote

When are Turreted Railgun better than Spinally-Mounted Railguns?

Rail gun is a projectile weapon - meaning there is a physical object being thrown at a target. How it will be used depends on what your world (and universe) looks like and, specifically, what tech ...
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When are Turreted Railgun better than Spinally-Mounted Railguns?

Since it’s a railgun, I would go with a mass driver gauss rifle design. It essentially speeds up an object pushing a payload (which is your ammunition) and stops the object pushing the payload, ...
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3 votes

When are Turreted Railgun better than Spinally-Mounted Railguns?

Rail torque. Rotating the turret with long protruding railgun puts torque on the rails because forces are applied only to one end of a long structure. They wind up bending out of true. At best this ...
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3 votes

Magnetic Flux Pinning Whipple Shields?

You definitely can use magnets to keep the layers of the shield in place but what benefit does an active system like this over a passive system? In a passive system you get a significant reduction in ...
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10 votes
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When are Turreted Railgun better than Spinally-Mounted Railguns?

This question asks a trade-off between traversement speed and projectile energy. In a turret, your ability to point the weapon is limited by the speed at which you can turn the turret. This gives the ...
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2 votes

Using coilguns or VASIMR as thrusters in a game

Induction furnace / coilgun hybrid. I wince at lasers and fast moving pellets. Much waste, much danger. The horror of moving parts! I propose instead that you melt your reaction mass using an ...
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1 vote

Using coilguns or VASIMR as thrusters in a game

Vasimir might be the better option in the sense that on paper at least easily tunable when it comes to your rocket thrust/efficiency ratio. My (lay) opinion would be that assuming the two competing ...
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1 vote

Racing Around the Edge of a Black Hole

The person in the nearer spaceship would corner a lot faster, but not for the reason you think. Angles aren't Euclidean close to a black hole. That's why light bends around them. Given the proper ...
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2 votes

Is the universe old enough to have an ecosystem of feral self-replicating spacecraft?

No reason not to There is literally nothing stopping you from doing so. Spaceships Literally anything that’s vacuum-tight, ranging from Mercury rockets to Saturn V to the Millenium Falcon. Self-...
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Reaching Proxima Centauri within 10 years of ship time in the year 2300

Proxima Centauri is approximately 4x1013 kilometres away from us (or 40 trillion, if you like). To cross it in 10 years (from the point of view of an outside observer) requires an average speed of ~0....
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