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# RE: Vector Rules / Inertial dampers

From: "Steve Pugh" <mafb90@p...>
Date: Wed, 8 Oct 1997 11:04:43 +0000
Subject: RE: Vector Rules / Inertial dampers
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Status: RO

> Adding more faggots to the Burning Heretic of Vector Movement
>
> What about inertial dampers then? The ships in FT must have them
> otherwise the accelerations they make would liquify the crew. I
> don't know if anyone has worked out the G force of a Thrust of +3
> but I imagine its got to be pretty high and if we take Star Trek or
> Honor Harrington then we're in the region of 500g. You have to have
> inertial dampers or you're salsa.
>
> If you have inertial dampers why can't you use them to remove your
> rotational inertia?

We can't work out the acceleration represented by 1 thrust point, as
we don't know the the mass represented by one mass, the distance
represented by 1 inch or the time represented by 1 turn. I did
produce a working system that had 1 inch = 1000 km and 1 turn = about
20 minutes.

Problem is that the rotation and accelerations in FT take place in a
time much shorter than that of the turn. (Hence the results are
instantaneous: if you apply 4 thrust, your velocity goes up by 4 at
once, not next turn.)

If we assume that the time for acceleration is about 1/10 of a turn
or 2 minutes then 1 thrust is about 0.7 g. So even Thrust 8 burns
would be no more than 6 g. well within the limits of human tolerance
provided the crew are strapped in, etc.

(Read 'The Reality Dysfunction' by Peter Hamilton, the first chapter
on its own has combat vessels moving around with 8g plus
acceleratios and throwing unmanned combat drones at each other at 40
g plus accelerations. No inertial dampers here: the crew are strapped
down and those passengers who don't get to their acceleration couches
in time are in trouble...)

In a setting with inertialess drives and artificial garvity then
inertial dampers would exist and would allow much higher
accelerations.

But a vector movement system assumes that such technology does not
exist.

(My personal game universe has some artificial gravity and does allow
the crew to move around during combat, but the drives are still
reaction based and so I use a vector movement system. Those races
with better gravity control can maneuver with higher thrust as the
crew are better protected.)

Steve

--
"And all I ask is a tall ship, and a star to steer her by."
"Though a cloaking device, pulsed phaser cannons
and a full load of quantum torpedoes would be quite nice too."

Stephen Richard Pugh	 http://ds.dial.pipex.com/town/estate/ax16
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