Posted on 04/07/2013 12:05:19 PM PDT by neverdem
Equal and opposite reaction...
Much smaller visible 'signature', no muzzle flash, no smoke.
there is no recoil. did you skip the sarc tag or were you imitating Diane whatsherface in Colorado having no clue about gun magazines?
>>Recoil will be massive! The ship must be a stable platform that can withstand that recoil.
>> How much higher than forty five degrees without getting swamped in seawater?
That just means they need to make it bigger; enough recoil to create a full 360 degree spin. :)
I don’t believe the recoil from the impulse of firing a 40-lb. projectile will be all that great. Large, for sure, but not compared to the mass of a 3000 ton DDG, or a 4000+ ton FFG. The thing is, the ultra-high velocity of the railgun projectile makes for a very short time of flight and thus a flat trajectory. Little elevation required within line-of-sight.
TC
Have you seen video of one of these firing? Mucho flash and smoke.
Do magnetic rail guns or pulse weapons have recoil?
Does a rail gun or any type that uses magnetic fields for propulsion have recoil? Is there coupling back through the magnetic field that provides the impluse that would cause the device to produce recoil like a standard gun? If not how are the laws of physics satisfied?
kennyk
No it does not recoil in the classical sense. And no the laws of physics are not being violated.
Recoiling is necessary to satisfy the conservation of linear momentum of a system when no external forces are present. Such a system could be a stationary bullet in a stationary gun. Because, the two bodies are stationary the initial momentum of the system will be 0. Once the gun is fired the bullet will have momentum in an arbitrary direction. The gun must have an equal momentum opposite in direction so the two mometums cancel out and keep the overall momentum of the system 0.
The preceding scenario is referred to as a collision/momentum transfer in classical mechanics. The key is that no external forces are present. Once a magnetic field is introduced, the system becomes more complicated and can no longer be described as a momentum tansfer/collision. A recoil in the classical sense dose not occur. Rather there will be an energy transfer from the source of the magnetic field within the gun to the bullet to and vice verses. Electromagnetic energy will be converted into kinetic energy (Propulsion) and kinetic energy converted into electromagnetic energy(Recoil). So no conservation principles are being violated.
That’s on projectile hit, I think.
What causes the enormous amount of heat generated? If they can draw down the heat and convert it back to energy, then they can keep the equipment from melting, and have major success in putting it to service.
Compared to the flash and smoke of an equivalent amount of energy released by a chemical reaction, yes, much smaller.
For a historical analog, compare the range you could spot a coal fired steam powered warship over the horizon to the visible signature of a Diesel or oil fired steamship.
Neither Diesel nor bunker charlie are smoke free, but they provided the crucial advantage in more than one battle.
They can transfer the heat to foil wrapped bacon and eggs.
The Navy’s railguns are expected to have ranges equal to or gretaer than 220 nautical miles, which is Beyond Visual Range (BVR) for the 5 inch projectile.
Rail run being fired. The air burns.
Ruh roh. Typo.
Well, you beat me by 8 seconds.
Next generation destroyer (Zumwalt class). Stealthy, being built with missiles and advanced gun systems, the class has vast electrical output. We're only building three, but they are basically experimental platforms that are intended to be ready for when the rail gun technology matures. If it all works, we will likely build a follow-on in numbers greater than 3.
This is what should be trashed and unfunded. It is an admiral’s wet dream that serves no real need or purpose.
I would hope it would be sequestered first crack out of the box.
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