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blankseplocked Mass, Inertia, and Velocity
 
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Zondrail
Formic Hive
Posted - 2011.03.28 17:27:00 - [1]
 

I am familiar with the very basics of Mass and Inertia in this game... basically that a lower Inertia means your ship will be more agile, which means:

  • It will align faster

  • It will maintain a higher velocity while orbiting/turning

  • Does this also mean it accelerates faster?


I also know that Mass is a key value, in that the Inertia and Mass account for the above (ie, a BS with a huge mass but smaller inertia is still not as agile as a Frigate with a worse Inertia), but what is the exact relation? I'm familiar with basic Newtonian physics (but, you know... it's been a while), but I'm looking for the simple breakdown of what the values (Mass and Inertia) mean in relation to basic actions in game.

Also, is the ships speed just a derivation of the ships Mass, or is that a completely independent value?

Any other random insights are also welcome.

Sessym
Amarr
Posted - 2011.03.28 19:54:00 - [2]
 

Inertia is turning, mass is response to acceleration. Time-to-warp is affected by both.

Valeroth Kyarmentari
Posted - 2011.03.28 20:06:00 - [3]
 

Here is a good article about the math behind it all...

http://wiki.eveonline.com/en/wiki/Acceleration

Seriously Bored
Minmatar
Posted - 2011.03.28 21:26:00 - [4]
 

Originally by: Sessym
Inertia is turning, mass is response to acceleration. Time-to-warp is affected by both.


Mass is used for turning as well. Inertia isn't used in any calculations I'm aware of without Mass also being involved, however Mass is used on its own when it comes to wormholes and determining the maximum speed gained from an AB or MWD.

Kazuo Ishiguro
House of Marbles
Posted - 2011.03.28 21:52:00 - [5]
 

Originally by: Seriously Bored
Originally by: Sessym
Inertia is turning, mass is response to acceleration. Time-to-warp is affected by both.


Mass is used for turning as well. Inertia isn't used in any calculations I'm aware of without Mass also being involved, however Mass is used on its own when it comes to wormholes and determining the maximum speed gained from an AB or MWD.


The only exception I can think of would be missiles, which have no listed mass but an inertia multiplier of 1000.

Crabs Collector
Posted - 2011.03.28 22:14:00 - [6]
 

F=m x a.

So the force required for a change in movement depends on mass and acceleration. More mass means there is less acceleration when the force stays the same.

mkmin
Posted - 2011.03.28 22:23:00 - [7]
 

aligning, orbiting, and accelerating are all exactly the same thing, just in different directions. As far as the game is concerned everything is a sphere with no facing, only a vector if moving. Thus orbit speed is a function of your ability to accelerate in one direction while decelerating in another. It's pretty simple (it has to be to not fry the servers.)

Zondrail
Formic Hive
Posted - 2011.03.28 22:46:00 - [8]
 

Awesome, thank you for the answers. That article was helpful, also answered that max velocity is it's own value and not a derivative of the other values. Good stuff.


 

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