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Old April 5th, 2008, 01:36 PM
Laryssa Laryssa is offline
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Default The 15.5 Megaton Battlestar Galactica

I have the Battlestar Galactica Role Playing Game, but I just couldn't resist converting it to Traveller T20. The first thing to note, is that this Battlestar is much more futuristic than the one from the New Television Series and RPG, part of this could be helped as T20 doesn't have stats for railguns, so I substituted Pulse Lasers instead for the point defense system. It turns out My Battlestar Galactica has 7,750 pulse lasers all over its outer hull, this is for shooting down those Cylon Raiders which I'll detail later. I've looked at the dimensions for the Battlestar Galactica from the RPG: 4,593 * 1,725 * 739 feet. I've divided each dimension by three multiplied them together to get cubic meters and divided that number by 14 to get displacement tons and I rounded up to get the figure of 15.5 Megatons of displacement, this is a huge ship. For the Viper, I just threw in the Standard 15-ton Fighter from the Traveller Handbook, unaltered. Substituting for the Raptors, I threw in the Imperial Scout/Courier which serves the same function in the Traveller Universe. The Galactica has two landing bays, each one has approximately 550,000.0 tons of displacement and their are two. The stats for the Galactica in the RPG lists 80 Vipers for its one functional landing bay, the other one was converted to a museum. For this Traveller scenario, I assume that both landing bays are functional and so I have doubled the number of fighters to 160. (80 per landing bay) Each landing bay also carries 12 scout/couriers and 12 shuttles for a total of 24 and 24 on both combined. The landing bays also has a launch tube for every fighter and hangar space for all spacecraft with plenty of room to spare.

The Galactica also hold room for 10,500 people, so I have included 6,000 staterooms.

Class: Battlestar (BS), Type Y
Tech Level: 15
Size: 15,500,000 tons (Close Struct)
Streamlining: Partial
Jump Range: 3 parsecs
Acceleration: 2-G
Fuel: 5,483,400 tons LH2
Duration: 4 weeks; 100 sorties for all vipers (duration 4 weeks each); 100 sorties for all Scout/Couriers (duration 4 weeks each); 300 sorties for all Shuttles (duration 4 weeks each).
Crew: 3,100
Passenger Capacity: 8,900 with double occupancy of remaining staterooms.
Cargo Space (Not including Cargo Space in Landing Bays): 2,983,491 tons
EP Output: 1,550,000 (+542,488 excess)
Agility: +2
AC: 22 (10 + 15 AR + 2 Agility - 5 Size)
AR: 15
SI: 2,450
Main Computer: Model/9
Sensor Range: 2 parsecs (passive)
Communications: System Wide (Radio - Time Delay involved for more extreme distances)
Cost: Mcr253,077,163.4
Weapons: 7750 Pulse Lasers, +6 USP, Damage 6d10, Range Increment 45,000 km, Crit *2;
3875 Nuclear Missiles in 100-ton bays, +9 USP, Damage 14d6 +d12(radiation), Range Increment 90,000 km, Crit *2;
3875 Missiles in 100-ton bays, +9 USP, Damage 9d6, Range Increment 90,000 km, Crit *1

Other Equipment:
Starboard Landing Bay
Hangar Space for 130 Vipers
Launch Tubes of 130 Vipers
Fuel for 100 sorties of 4 weeks each for 130 vipers
130 vipers
Hangar Space for 20 Scout/Couriers
Fuel for 100 sorties of 4 weeks each for 20 Scout/Couriers
20 Scout/Couriers
Hangar Space for 20 Shuttles
Fuel for 300 sorties of 4 weeks each for 20 Shuttles
20 Shuttles
Total Fuel Reserves for this Landing bay: 29,200 tons LH2

Port Landing Bay
Hangar Space for 130 Vipers
Launch Tubes of 130 Vipers
Fuel for 100 sorties of 4 weeks each for 130 vipers
130 vipers
Hangar Space for 20 Scout/Couriers
Fuel for 100 sorties of 4 weeks each for 20 Scout/Couriers
20 Scout/Couriers
Hangar Space for 20 Shuttles
Fuel for 300 sorties of 4 weeks each for 20 Shuttles
20 Shuttles
Total Fuel Reserves for this Landing bay: 29,200 tons LH2

Battlestar Galactica - TL 15
Installed Components ---- Tonnage ------- Cost (MegaCredits) ----- EP
15.5 Megaton Hull --------15,500,000.0 ------------ 930,000.0
Armor USP 15 ----------- -2,480,000.0 -------------- 15,500.3
Bridge -------------------- -310,000.0 -------------- 77,500.0
Computer Model/9 --------------- -0.9 -------------------18.0 -------- -12
- Flight Avionics Model/9 --------- -3.6 ----------------- (8.1)
- Sensors Model/9 (2 parsecs pas) -2.7 ------------------ (5.4)
- Communications Model/9 (System) -1.8 ---------------- (4.5)
Jump Drive (3 Parsecs) ----- -620,000.0 ---------- 2,480,000.0 - -465,000.0
Jump Fuel (LH2) ---------- -4,650,000.0
Maneuver Drive (2-G) ------- -775,000.0 ----------- 542,500.0 - -310.000.0
Power Plant (Fusion TL 15) -- -775,000.0 --------- 2,325,000.0 +1,550,000.0
Power Plant Fuel (LH2) ------ -775,000.0
Hard Point 77,500 ----------------------------------- 15,500.0
7,750 Pulse Lasers (USP +6) - -232,500.0 ----------- 116,250.0 - -232,500.0
(3875) 100-ton bays -------- -387,500.0 ----------- 775,000.0
(nuke missiles)
(3875) 100-ton bays -------- -387,500.0 ----------- 775,000.0
(missiles)
6,000 Staterooms ------------ -24,000.0 -------------- 3,000.0
Landing bays (2) ---------- -1,100,000.0 -------- 225,950,965.4
Cargo ------------------ +5,463,491.0

Port Landing Bay ------ 550,000.0
Hangar Space (130 Vipers) --- -2,535.0 ------------5,070,000.0
130 Vipers (15-ton Fighters) - ( -1,950.0) -------------- 3,549.0
Launch tubes (130 Vipers) --- -48,750.0 -----------97,500,000.0
Hangar Space (20 Scouts) -- -2,600.0 -------------- 5,200,000.0
20 Scout/Couriers ----------(-2,000.0) ------------------- 845.2
Hangar Space (20 Shuttles) - -2,600.0 ------------- 5,200,000.0
12 Shuttles ---------------- (-2,000.0) ----------------- 1,088.5
Fuel for Vipers (130 * 100) ----- 24,700.0
Fuel for Scouts (20 * 100) ------- 2,400.0
Fuel for Shuttles (20 * 300) ----- 2,100.0
Landing Bay Cargo ------ +464,315.0

Starboard Landing Bay ------ -550,000.0
Hangar Space (130 Vipers) --- -2,535.0 ------------5,070,000.0
130 Vipers (15-ton Fighters) - ( -1,950.0) -------------- 3,549.0
Launch tubes (130 Vipers) --- -48,750.0 -----------97,500,000.0
Hangar Space (20 Scouts) -- -2,600.0 -------------- 5,200,000.0
20 Scout/Couriers ----------(-2,000.0) ------------------- 845.2
Hangar Space (20 Shuttles) - -2,600.0 ------------- 5,200,000.0
12 Shuttles ---------------- (-2,000.0) ----------------- 1,088.5
Fuel for Vipers (130 * 100) ----- 24,700.0
Fuel for Scouts (20 * 100) ------- 2,400.0
Fuel for Shuttles (20 * 300) ----- 2,100.0
Landing Bay Cargo ------ +464,315.0

Turns out the landing bays are quite cavernous, plenty of spare room. That's the way they look in the TV series as well. I suppose alot of that space is so individual spaceships can maneuver around inside the landing bays (which are enclosed)
When the landing bay doors are closed, the entire landing bay can be pressurized and crew can work on the individual spaceships in a shirt sleeve environment. The hangar space is located below deck which are accessible by cargo elevators which can lower entire spaceships to their below deck hangar space. The landing deck is also large enough to receive some smaller capital ships such as Colonial One, although, it would tend to occupy the landing deck and prevent further spaceships from landing there. The launch tubes are below deck and vipers can still be launched, they just can't land until the landing deck space is cleared.

So what do you think of my work here?
I suppose the price in Cubits (which are equivalent to credits) is a rather academic exercise. No one in any campaign is going to buy a Battlestar, and in this campaign there are only two in existance. (Galactica and Pegasus.)
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Last edited by Laryssa; April 11th, 2008 at 11:25 AM..
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