Originally the THS (later SLS) Prague. Retired from Star League service in the late 2740s, then sold to the Rim Worlds Republic and later returned to Star League service (IE captured) during the Amaris war. Though she was intact enough to accompany the exodus, the Prague was deemed surplus to requirements and mothballed once the Exodus fleet had reached the Pentagon worlds.
And there she stayed, forgotten by the clans, until the Society came across her. In addition to repairing the ship and refitting it with modern weapons and armor, the Society also equipped their new frigate as a mobile research station able to transport over two thousand scientists, assistants, and test subjects. Unlike other ships the society and their bandit caste allies managed to recover, the newly christened Hidden Calculations was never risked in battle against the clans, instead operating as a safe haven and mobile command post before slipping out of the Kerensky cluster once the war was lost. Even if the clans knew she existed in the first place, they certainly don't know where she might have gone since.
Riga Frigate Hidden Calculations
Mass: 750,000 tons
Use: Frigate
Technology Base: Mixed (Advanced)
Introduced: 3079
Mass: 750,000
Battle Value: 127,564
Tech Rating/Availability: F/X-X-F-F
Cost: 17,523,252,480 C-bills
Dimensions
Length: 693 m
Height: 1375 m Sail
Fuel: 10,560 tons (26,400)
Safe Thrust: 3
Maximum Thrust: 5
Sail Integrity: 5
KF Drive Integrity: 16
Heat Sinks: 2100 (4200)
Structural Integrity: 70
Armor
Nose: 170
Fore Sides: 165/165
Aft Sides: 165/165
Aft: 157
Cargo
Bay 1: Fighter (12) 2 Doors
Bay 2: Small Craft (4) 2 Doors
Bay 3: Cargo (50000.0 tons) 1 Door
Bay 4: Cargo (50258.5 tons) 1 Door
Ammunition:
400 rounds of NAC/25 ammunition (240 tons),
300 rounds of NAC/30 ammunition (240 tons)
Dropship Capacity: 2
Grav Decks: 2 (140 m, 65 m)
Escape Pods: 31
Life Boats: 20
Crew: 58 officers, 225 enlisted/non-rated, 60 gunners, 44 bay personnel, 2100 passengers, 45 BA marines
Notes: Equipped with
lithium-fusion battery system
1 Mobile Hyperpulse Generators (Mobile HPG)
1 Satellite Imager (Hyperspectral Imager)
1 MASH Equipment (10 theaters)
2 Field Kitchen
1 Satellite Imager (High-Resolution Imager)
1 Communications Equipment (10 tons)
1 Satellite Imager (Look-Down Radar)
1 Naval Comm-Scanner Suite (Large)
1 Satellite Imager (Infrared Imager)
1,050 tons of ferro-carbide armor.
Weapons: Capital Attack Values (Standard)
Arc (Heat) Heat SRV MRV LRV ERV Class
Nose (910 Heat)
1 Naval PPC (Heavy) 225 15(150) 15(150) 15(150) 15(150) Capital PPC
2 Naval Laser 55 170 11(110) 11(110) 11(110) 11(110) Capital Laser
2 Naval Autocannon (NAC/30) 200 60(600) 60(600) 60(600) 0(0) Capital AC
NAC/30 Ammo (100 shots)
5 ER Large Pulse Laser 65 5(50) 5(50) 5(50) 0(0) Pulse Laser
5 ER PPC 75 8(75) 8(75) 8(75) 0(0) PPC
5 ER Large Laser 150 13(130) 13(130) 5(50) 5(50) Laser
5 Improved Heavy Large Laser
5 Laser AMS 25 2(15) 0(0) 0(0) 0(0) AMS
FRS/FLS (625 Heat)
2 Naval Laser 45 140 9(90) 9(90) 9(90) 9(90) Capital Laser
2 Naval Autocannon (NAC/25) 170 50(500) 50(500) 50(500) 0(0) Capital AC
NAC/25 Ammo (100 shots)
5 ER Large Pulse Laser 65 5(50) 5(50) 5(50) 0(0) Pulse Laser
5 ER PPC 75 8(75) 8(75) 8(75) 0(0) PPC
5 ER Large Laser 150 13(130) 13(130) 5(50) 5(50) Laser
5 Improved Heavy Large Laser
5 Laser AMS 25 2(15) 0(0) 0(0) 0(0) AMS
RBS/LBS (910 Heat)
1 Naval PPC (Heavy) 225 15(150) 15(150) 15(150) 15(150) Capital PPC
2 Naval Laser 55 170 11(110) 11(110) 11(110) 11(110) Capital Laser
2 Naval Autocannon (NAC/30) 200 60(600) 60(600) 60(600) 0(0) Capital AC
NAC/30 Ammo (100 shots)
5 ER Large Pulse Laser 65 5(50) 5(50) 5(50) 0(0) Pulse Laser
5 ER PPC 75 8(75) 8(75) 8(75) 0(0) PPC
5 ER Large Laser 150 13(130) 13(130) 5(50) 5(50) Laser
5 Improved Heavy Large Laser
5 Laser AMS 25 2(15) 0(0) 0(0) 0(0) AMS
ARS/ALS (625 Heat)
2 Naval Laser 45 140 9(90) 9(90) 9(90) 9(90) Capital Laser
2 Naval Autocannon (NAC/25) 170 50(500) 50(500) 50(500) 0(0) Capital AC
NAC/25 Ammo (100 shots)
5 ER Large Pulse Laser 65 5(50) 5(50) 5(50) 0(0) Pulse Laser
5 ER PPC 75 8(75) 8(75) 8(75) 0(0) PPC
5 ER Large Laser 150 13(130) 13(130) 5(50) 5(50) Laser
5 Improved Heavy Large Laser
5 Laser AMS 25 2(15) 0(0) 0(0) 0(0) AMS
Aft (455 Heat)
2 Naval Laser 45 140 9(90) 9(90) 9(90) 9(90) Capital Laser
5 ER Large Pulse Laser 65 5(50) 5(50) 5(50) 0(0) Pulse Laser
5 ER PPC 75 8(75) 8(75) 8(75) 0(0) PPC
5 ER Large Laser 150 13(130) 13(130) 5(50) 5(50) Laser
5 Improved Heavy Large Laser
5 Laser AMS 25 2(15) 0(0) 0(0) 0(0) AMS