I ran one up in Ships For Windows III

CRAFT ID: X Boat Redesign TL: 13
MCr56.604 (Auxiliary)
HULL: 90/225, Displacement=100, Config=5U,
Armour=40F (0), Loaded=520.79, Unloaded=-196.37
POWER: 1/2, Fusion-D=194.4Mw Duration=360hrs/15 days
Extended Endurance=359hrs/14 days
No scoops
No purifiers
No EM Mask
ExtEnd excludes: (0g)
DRIVES: Jump=4 8/16, No avionics
Low Maintenance Jump drives
Maneuver=1G 1/3 Agility=0
Speeds:
ATMOSPHERE MAX CRUISE
Vacc: 1,200kph/750mph 900kph/563mphCOMMUNICATIONS: Radio-Syst x 2
Laser-FarO x 1
SENSORS: P-EMS (IntPlnt) x 1
Sensor scans: AOS=- AOP=- POS=D POP=- PES=S PEP=-
WEAPONS: 1 hardpoints; 0 occupied; batteries bearing 100 %
Missile magazine: HE=
Total=0 missiles. 1 b/r=0 missiles
SCREENS: DefDM= 5
CONTROL: Computer=Model 4/fib x 3, Panels=Holographic Linked x 163
Backup computer=Model 1/fib x 3
Basic Env(heat/light
Basic LS (air/water)
Ext LS (food/recyc)
Airlock x 1
Grav plates
CREW: Crew=0
ACCOMMODATION: Small stateroom x 1 Emergency low (3) x 1
OTHER: Cargo=690Kl/51 tons, EMLevel=Faint
Fuel=376 Kl/27 tons, ObjSize=Average
One jump requires 84KL/6 tons of fuel (?) The fuel calc for the jump drives is by drive unit, not distance?
Anti-hijack:

HIGH GUARD: 15410D0-000000-00000-0
TCJMPCC-ASMNGR-LEPMI-F Weapons reflected are highest values.

Now, I didn't try to include a massive memory unit, but the machine has a Model 4/fib with 2 redundant backups and a Model 1/backup (with two redundant backups) - the software auto-enforces the recommended 3 x for any computer suggestion for spacecraft. I'm also missing Electronic Circuit Protection for all computers, that would add about 50% to space/weight but that's not a lot.

MT's tables tell me I need 5 Jump units to have Jump-4 in a 100 ton hull. The fuel requirement (TL9 to 16) is 67.5 kl per jump unit (which is 5 tons per jump unit, for 25 dTons total for jump).

I put in a 1G drive and 15 days of endurance just to help get it to and from a transfer station or tender (or if they get a misjump). I put in 3 emergency low berths (I think... which could hold 12 people? unsure what the software did there).

I gave it a passive EMS, but I could have given it Neutrino and Active EMS rigs too. I installed radar as a backup. I used a low maintenance house rule the software allows for low jump drives that can go longer between maintenance work.

I was cheap and deleted the inertial compensator. I could put it back in a see with no fuss.

So, with all this done, I still have 51 tons. I can put in computer memory banks, harden them with ECP, add additional comm systems for this array of laser comms that could do point to point transmission of message data quickly, fuel for that, plus room for some interior space for the pilot, and so on. Lots of room. I could likely accommodate a 20 dTon standard shipping container with a hatch that I could eject it from for pickup by the transfer station's cargo work bots. We could increase the maneuver drive, the fuel supply, duration, etc.

So this design seems totally doable under MT rules. In fact, if I swapped J-4 for J-6, I'd need two more jump units for 2 more dTons and then another 135 kl of fuel. So even a Jump-6 version has space to spare.

No need for a 20T bridge (just one control station) and lower fuel consumption in MT means you can easily build a fairly useful 100 ton J-6 courier/mailboat and likely install a 2G or 3G drive with an inertial compensator.

So, MT's mechanics allow much less fuel tonnage to be used, but they kept the older canonical J-4 historical network.

On Fri, Jun 12, 2020 at 4:22 AM < xxxxxx@gmail.com> wrote:

Yeah, without an M-drive even... that'd be a one way ticket.

If a black project could change the spherical distribution to a conical one, that might reduce the risk (more easily possible to match more of the possible landing locations) but it still argues for automated 'jump and transmit' vs. a crew to try the misjump research.

On Fri, Jun 12, 2020 at 1:36 AM Vareck Bostrom < xxxxxx@gmail.com> wrote:

I tried 500 misjumps out of Terra with the CT rules and got this distribution:

https://i.imgur.com/AmeJGwC.jpg (dot size scales with number of misjumps landing on that spot)

I suppose if trying to optimize for lucky information travel at faster than Jump-6 speeds, you would want to try to tickle the misjumps at worlds that have stars at 36 parsec in each of the directions. In Terra's case, the geometry isn't that good and a long misjump is also an unlucky one, it will land in empty space.

On Thu, Jun 11, 2020 at 8:15 PM < xxxxxx@gmail.com> wrote:

On Thu, Jun 11, 2020 at 10:29 PM Rupert Boleyn < xxxxxx@gmail.com> wrote:

On 12Jun2020 0848, Vareck Bostrom wrote:
> In these cases, the assumptions are that regular commercial traffic is
> always inbound and outbound from the system and incoming ships will,
> as part of human nature, exchange interesting news with outbound ships
> ("Did you hear that Strephon was assassinated?") and the density of
> J-2 shipping is always high enough that the turnaround is effectively
> instant, or at least as fast as the xboat turn around is.
>
> I have modeled in the past adding in misjumps to information
> propagation. Misjumps are common enough and occasionally end up in 36
> parsec jumps that if it were a rule that all ships must carry
> important mail in digital form on the chance that they might get a
> lucky misjump that greatly outpaces even a secret J-6 network makes it
> worth doing.
In CT there was no chance of a misjump at all unless you were provoking
one (by jumping in the well, using dodgy fuel, or skimping on
maintenance). Also, the chance of getting that 36-parsec misjump is very
low - roll 1d6 for the number of dice to roll, then roll that many D6s
for distance. 36-parsecs requires getting a 6 on 7 D6s - a 1 in 279936
chance.

Hmmm, I remember it as D6 x D6 which is why I said about 10-12 avg and that would make 36 misjump 1/36 and 30 misjump 1/12 odds.

I'll have to look between versions now and see if that changed after the CT info. In versions where you might still fail, and some of the later ones might be like that, it would still be a consideration to think about.

And I could see a mad science project from the Imperial Research Stations trying to find out how to create a directional misjump that was at least somewhat tuneable....

--
Rupert Boleyn < xxxxxx@gmail.com>

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