This is a weekly posting with GURPS vehicles (and the like) to the
GURPSnet mailing list. I grant the permission for all non-commercial
redistribution of my work, but I would like to know if you put it on
a website or the like. The files at omeyer.gmxhome.de are down until
I fix the automatic PDF generation, which should be one of these
days - see sourceforge.net/projects/gurpsml
Onno Meyer, 2013-02-25
Super Ironclad v1.0 (TL5)
Copyright 2013 by Onno Meyer
In the 1860s and 1870s, naval architects could not combine sufficient
armament, armor, engines, and coal in any reasonable hull. Historically,
they did not take the obvious solution -- a larger ship -- until much
later.
The Super Ironclad combines a broadside battery of 68-lbr. shell guns,
a center battery with 10" rifled muzzle loaders, and two turrets with a
pair of 12" RML each. She has twin screws powered by trunk engines, and
a dozen temperamental water tube boilers. Her mast has no sails, just a
fighting top.
Normally, the ship has 2,000 officers and crew, but if necessary she
can carry several army regiments for a few days or weeks. She has one
steam launch, two pinnaces, and four cutters.
The steam engines burn 67.5 tons of coal per hour. A full load of
ammo, fuel, and provisions is $1,275,200.
Subassemblies: Body +11, Superstructure +8, two full-rotation Open
Mounts +4, Open Mount +2, Mast +2, two full-rotation Turrets +6.
Powertrain: Two 21,600-kW screw propellers; two 21,600-kW forced draft
steam engines; 1,800-kW forced draft steam engine.
Fuel: 400,000 cf coal.
Occ: 10 bridge NCS, 48 NCS, 468 RSR, 5 XCSR, 1,950 hammocks, 48 cabins,
2 luxury cabins.
Cargo: 30,000 cf.
Armor F RL B T U
Body: 4/300 4/500 4/300 4/100 4/100
Superstructure: 4/500 4/500 4/500 4/150
Mast: 4/100 4/100 4/100 4/100 4/100
Turrets: 4/750 4/750 4/750 4/750
Weaponry
Two 12" RML [Tur1:F] (45 rounds each) +0.
Two 12" RML [Tur2:F] (45 rounds each) +0.
Two 10" RML [Sup:R] (100 rounds each) +0.
Two 10" RML [Sup:L] (100 rounds each) +0.
Twenty 68-Pounders [Bod:R] (120 rounds each) +0.
Twenty 68-Pounders [Bod:L] (120 rounds each) +0.
Equipment:
Body: Voicetubes; five complete workshops; 50-man mess; 1,950-man
environmental controls; 100,000 man-days of provisions. Superstructure:
Voicetubes; two limelight signal lamps; whistle; meteorology
instruments; three sets of navigation instruments; two operating rooms;
50-man mess; four 5-ton external cradles; two 10-ton external cradles;
20-ton external cradle; 50-man environmental controls. Open Mounts 1-2:
12.5-ton cranes. Turrets: Voicetubes. External: Styling.
Statistics
Size: 640'x80'x160' Payload: 12,000 tons Lwt.: 32,000 tons
Volume: 2,500,000 cf Maint.: 41 man-hours Price: $74,198,050
HT: 9. HPs: 660,000 Body, 72,000 Superstructure, 1,000 Open Mounts
1-2, 200 Open Mount 3, 300 Mast, 18,000 each Turret.
wSpeed: 18 wAccel: 0.1 wDecel: 0.2(0.25) wMR: 0.02 wSR: 7
Draft 32'. Flotation rating 62,400 tons.
Design Notes
Body is 2,400,000 cf, with average hydrodynamics and heavy
compartmentalization. Superstructure is 78,650 cf. Open Mounts 1-2 are
600 cf each, on superstructure. Open mount 3 is 50 cf, on Mast. Mast is
100' and 100 cf, on Superstructure. Turrets are 10,000 cf each, on Body.
Structure is extra-heavy, standard. Armor is standard metal.
Waterproofed. Mechanical controls. 180 rounds of 12" solid shot, 2,400
rounds of 68-lbr. solid shot and 2,400 rounds of 68-lbr. LE shell are
stowed in the Body, 400 rounds of 10" solid shot are stowed in the
Superstructure. 928,221.9 cf of empty space in the Body, 27,956.6 cf in
the Superstructure, and 1,502.5 cf in each Turret. Empty weight is
40,000,000 lbs.
Weapon Weight Volume Cost Power WPS VPS CPS Ldr TL
68-Pounder 10,000 500 $20,400 - 100 0.67 $20[1] 9 5
10" RML 23,000 1,150 $58,000 - 920 6.13 $184[2] 12 5
12" RML 33,000 1,650 $83,000 - 1,600 10.67 $320[2] 15 5
Ammo: [1] Solid, also fires LE (x2 cost, x2/3 weight). [2] Solid.
Weapon Ammo Malf Type Damage SS Acc 1/2D Max RoF
68-Pounder Solid 16 cr. 6d*10 30 6 720 2,900 1/34
LE 16 exp. 6d*33[12d] 30 6 720 2,900 1/34
10" RML Solid 16 cr. 6d*17 30 15 1,500 6,100 1/42
12" RML Solid 16 cr. 6d*20 30 15 1,600 6,400 1/51
The vehicle uses the design rules from Vehicles [second edition, third
printing, July 2010 errata], VXi and VXii (including the armor volume
rule) with the text format from Vehicles Lite.
Next Week: Something to hunt Martians.
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