Condottiere
Emperor Mongoose
Considering that the default manoeuvre drive is anchored to a gravity well, upto one thousand diameters, I conclude that it's pretty much connected to gravity.
How much actual volume required per crewman in a military spaceship?
- Thread starter MarcusIII
- Start date
MarcusIII
Emperor Mongoose
It isn't though. The M drive creates a gravity well external to the ship. The ship then falls into the well.
Condottiere
Emperor Mongoose
Based on the placement of the manoeuvre drive on illustrations and the deckplans, I rather doubt that.
Also, the recent (comparatively recent) addition of vectored thrust.
Also, the recent (comparatively recent) addition of vectored thrust.
Hmmm that doesn't track. If the ship is able to generate its own localised gravity well then the M-drive would be able to operate independent of any other astronomical objects, but we know that M-drive does not operate beyond 1000D (in MGT2 anyway).
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It's conceivable that gravitic tech may be able to curve space in a fine enough manner to allow for controlled falling or gliding Especially in an atmosphere), although most likely the efficient way to vary lift is with directed thrust.
TNE explored the idea that lifters were reducing the vessel's effective density, letting it float in atmospheres but meaning you had to land on thrusters for worlds with low atmospheric pressure (which, fortunately, tend to be the low gravity ones). I quite liked that quirk.
TNE explored the idea that lifters were reducing the vessel's effective density, letting it float in atmospheres but meaning you had to land on thrusters for worlds with low atmospheric pressure (which, fortunately, tend to be the low gravity ones). I quite liked that quirk.
YTU can do anything as far as how M-Drives work, but the Mongoose line is that it's applying force to a local mass, preserving most of the physics. Technically not reactionless; planet goes that away a tiny amount, ship goes in the opposite vector a large amount.
SOM p.75:
You can't argue with Agaashir.
SOM p.75:
You can't argue with Agaashir.
That last bit sounds very steam punk. We just need to paint the hull with gravity reflective paint
Well, it IS how airships work.
If you had a gadget that could reduce the density of air in the area above the vessel (which lowers air pressure), you'd generate lift. That's pretty much how moving airfoils work anyway. If you could vary the zone of low density to the sides, you could generate lateral thrust. Increasing the air density (pressure) underneath the craft would also provide lift.
Heating the air underneath the ship, or cooling it above would also affect pressure. You'd need some way of confining the gas for it to work very well, I'd think.
No gravity paint. Just air pressure.
Edit: I think I may have gotten things backwards regarding temperature and pressure there, but the principle still stands.
If you had a gadget that could reduce the density of air in the area above the vessel (which lowers air pressure), you'd generate lift. That's pretty much how moving airfoils work anyway. If you could vary the zone of low density to the sides, you could generate lateral thrust. Increasing the air density (pressure) underneath the craft would also provide lift.
Heating the air underneath the ship, or cooling it above would also affect pressure. You'd need some way of confining the gas for it to work very well, I'd think.
No gravity paint. Just air pressure.
Edit: I think I may have gotten things backwards regarding temperature and pressure there, but the principle still stands.
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Condottiere
Emperor Mongoose
1. Mass mitigation, or elimination.
2. Ignoring the local gravity field.
3. Repulsion of the local gravity field.
2. Ignoring the local gravity field.
3. Repulsion of the local gravity field.
Airships work by having a huge body of less dense gas which rises and a comparatively tiny vessel is tethered to it. They are largely aiming for neutral buoyancy and use vector thrust to move around. You would need to reduce density of the entire ships displacement to less than the density of the atmosphere on average before you got any lift (and unless you can induce negative density that is not a lot of density gradient play in).
Aerofoils are physically attached to the aircraft generating them. They do not work by just creating less dense air above the wing that the aircraft is sucked into which is what would need to happen if you are purely creating a lower air density space with space magic. They work because the fast moving wing creates more pressure below the wing than standing air and correspondingly less pressure above and that total pressure differential moves the wing up (and the plane with it). So you would at least need to create high pressure below and low pressure above. That is less of an issue in free air, but approaching the ground there is less air available underneath to be able to pressurise and you also create significant turbulence and ground wash bringing in that extra air. Taking off and landing helicopters is hard because you are moving through all that air you have only recently chopped up (aircraft rolling landings mean you get to move through largely undisturbed air). You can turn the dial up to 11 on take off to compensate and you might shoot up too quickly, but unless you are taking off under a canopy that probably won't have a significant impact (other than puking passengers). Landing too fast though will definitely put a crimp on your day.
The Bernoulli effect as taught in every flight school is a simplified model. In reality angle of attack and other aspects of fluid dynamics also need to be considered.
