Andrew declaimed (speaking of Jump Limits)
> In my opinion, they should be at the trojan points
How close is "very"? I guess that's what we're asking about for the Jump
Limit.
So, that's a ring around each planet, points
> if there's a moon, too complex if there's lots or a ring.
Otherwise, at
> the Oort or Kuiper belt? Something like 100 AU out?
I'd think 100 would make for a map rather larger than would be convenient?
> the Oort or Kuiper belt? Something like 100 AU out?
I'd think 100 would make for a map rather larger than would be convenient?
Its horses for courses.... Renegade legion allows you to enter anywhere so
long is its not inside a body although your entry velocity and direction is
pre determined by where you jumped from and how fast you made the transition.
Battletech also allows you to jump anywhere but "sensible" pilots jump well
clear of the solar plane
So long as the ships shields/protection can shed the vast amounts of
radiation, they should be able to jump anywhere within a couple of diameters
to any body including the systems star(s). IIRC the Tuffleyverse has static
jumps and therefore any vector must be generated after the jump is completed.
Anyone with the rules handy can correct me on that. So I don't see why an
inbound force couldn't jump "inside" the targets orbit and attack from the
"rear".
As an aside, merchant shipping would have a hell of a time carrying out
commerce if they have to vector in from Earth from Saturn everytime they jump
insystem. Instant FTL transition followed by 3 months burn time to achieve
docking at an earth orbit station could be very tedious. Not only
that it would make them _very_ easy targets for pirates unless under
strong
escort....
Forgive me for being biased but I really like the notion of being able to jump
practically anywhere insystem but because of the disturbance to normal space
from the transition to FTL and back special sensors will pick this up and
alert they defenders to where you've emerged.
I guess for flavour you could also add that the closer you jump to a gravity
well, the more likely you are to mis-jump and the incoming force
scatter.
Dan
Here is a quick reference for those who did not have the figures handy. Mean
distance from the Sun: Sun: 0au 2.0x10^30kg Mercury: 0.387au 3.3x10^23kg
Venus: 0.723au 4.8x10^24kg Earth: 1.0au 5.9x10^24kg Mars: 1.524au 6.4x10^23kg
Jupiter: 5.23au 1.9x10^27kg Saturn: 9.539au 5.7x10^26kg Uranus: 19.18au
8.7x10^25kg Neptune: 30.06au 1.0x10^26kg Pluto: 39.53au 1.3x10^22kg *All
distance and mass are approximate.
You could set zones of safe jump points by setting a limit. Minimum safe jump
point is 5au from a planetary size body (mass of 1x10^22).
Or some _wierd_ formula based on mass. 1/2au per exponent of 10 in mass
(round up if multiplier is over 5.0) and round up. Would provide minimum safe
distances of: 15au from the sun minimum 12au from Mercury 12au from Venus 13au
from Earth 12au from Mars 14au from Jupiter 14au from Saturn 13au from Uranus
13au from Neptune 11au from Pluto Jumps could be in the planetary plane, above
or below it.
-----
Brian Bell bkb@beol.net
http://fly.to/fullthrust/
-----
> -----Original Message-----
> Forgive me for being biased but I really like the notion of being able
> Dan
I agree with this viewpoint. You could make it a little easier for the
defenders by making FTL less than instantaneous. This is kind of what Timothy
Zahn used in his Conqueror(sp?) books. An FTL ship generated a "tachyon wave"
that was detectable well before the ship arrived, giving the defender time to
get prepared. I think the major planets had specific "vectors" that ships come
come insystem on and anything not on one of the vectors was considered
hostile.
So you could say for every light year away a ship is from its target it would
take a certain amount of time in FTL to arrive. The arrival vector could be
determined by its departure vector. On a flat hex map, a ship could enter the
target hex from the same hex face that it left from. The defenders could pick
up the wave front of the FTL ship immediately but would not be able to tell
the exact target hex until the ship was closer. Or something like that.
Mr Cheyne said:
> As an aside, merchant shipping would have a hell of a time
1 day at 1 gee means you move.25 AU and have a vector of.5 AU per day (using
the real equations rather than the FTFB "Instant acceleration at the beginning
of the turn" mode). So your merchie jumps in, finds his destination on the
other side of the sun, at 12 AU away, and starts burning. After a little less
than 5 days, he flips and starts decelerating; after a total of ten days from
start he's maneuvering to dock.
The equation is d = 0.5 a t^2 where d = distance traveled, a
= acceleration (close enough to 10m/sec^2) and t is the
amount of time spent accelerating. (I'm assuming constant linear acceleration
here, and ignoring plane changes, matching velocities and gravitational
effects).
How about when the gravitation of a body (the Sun for instance) reaches a
minimum. Perhaps.01 G? For those of you a bit more mathamatically minded (and
have the time) how for out would this be from the Sun?
The Earth?
Jupiter?
> Laserlight wrote:
> Andrew declaimed (speaking of Jump Limits)
> I agree with this viewpoint. You could make it a little easier for the
I think that this may be unnecessary. Just by giving an FTL transition a large
signiature, you accomplish the same thing. Ships must make smaller and smaller
jumps as they near their destination (to achieve accuracy), and are thus
detectable from this energy prior to arrival (remember that the FASTEST a ship
can accomplish a second transit is on the order of 6 hours).
This gives defenders a heads up.
----------
> Från: Donald Hosford <hosford.donald@acd.net>
(assuming I
> > got the figures right :-/ )
The distance where the gravitic acceleration caused by a body is a, is
calculated by
d = sqrt(M*G/a), where
d is the distance (meters) M the mass of the body creating the gravitic field
(kg)
G is the gravitic constant (6.67*10^-11 Nm^2/kg^2)
a is the acceleration (m/s^2)
Insert the mass of the system body and the gravitic acceleration you've set as
your limit.
But of course I did screw the calculations up, since I forgot to
convert 0.01g to m/s^2. The real values for the 0.01g limit are only
about one-third of what I wrote, ie:
Sun: ~36 800 000 km Earth: ~63 700 km Jupiter: ~1 140 000 km
Regards,
> Oerjan Ohlson wrote:
> ----------