Tamri wrote:Not really. For what would be the contents of the ship is not smeared on it at high acceleration, it is necessary to uniformly accelerate the entire ship including the insides. And to ensure that the ship would be in terms of the crew didn't look like a skyscraper, already need artificial gravity generators. Or magnetic boots. Or floor with suction cups. In short, something, that would allow a plane running in parallel axis acceleration to be floor or ceiling, not the wall.
The first technology will not lift your ship out of the gravity well. But the second - can. In fact, if someone learns to manipulate gravitational fields, I don't understand why he has some other engines.
The general suspicion is that any engine that doesn't use propellant will be roughly as energy-efficient as a photon drive: a.k.a. very very energy inefficient. It seems to usually be assumed that the ideal case is a propellant engine that forces energy from an external source into the propellant, e.g. any of the currently used electric rocket engines.
Incidentally, technically speaking, that's
external energy inefficient: the energy innate to the propellant isn't counted in this sort of thing, so propellant engines get to have "hidden" energy. In this sense, chemical rockets are high-efficiency, and ion engines are low-efficiency, while usually they're considered the other way around due to fuel often being the most limited resource.
Mr Bojangles wrote:Tamri wrote:Not really. For what would be the contents of the ship is not smeared on it at high acceleration, it is necessary to uniformly accelerate the entire ship including the insides. And to ensure that the ship would be in terms of the crew didn't look like a skyscraper, already need artificial gravity generators. Or magnetic boots. Or floor with suction cups. In short, something, that would allow a plane running in parallel axis acceleration to be floor or ceiling, not the wall.
The first technology will not lift your ship out of the gravity well. But the second - can. In fact, if someone learns to manipulate gravitational fields, I don't understand why he has some other engines.
Right. If you can manipulate gravity, you can uniformly apply an acceleration to your entire ship. That's what I was getting at in the second paragraph of my post. You wouldn't need devices specifically for dampening. This assumes, though, that you can generate an even field such that tidal forces are minimized, so I guess there could still be a place for the dampener described by icekatze.
Also importantly, such a field can produce a better experience than active damping, since the "latent damping field" can produce some damping effect before the active systems know to apply a counter-force: the magnitude of the instantaneous damping would be limited to that provided by the system components, but reaction speed would presumably be equal to that of active damping, so you get slightly better results.
Also, the nature of a "damping field" means that it can spread damage from an impact across a larger area: doubtless the energy would be focused wherever it hit, but if you could drag half of the energy across twice the area, and drag the other half
across the entire visible portion of the hull segment, then penetrating hits would automatically be both rarer, and less severe. Essentially, a "damping field" gives you a form of energy-based semi-active hull armor.