ATC Defense Grid

ATC Gun Tower (small)

Type: Surface-to-space laser cannon
Scale: Starfighter
Skill: Capital ship gunnery: laser cannon
Crew: 0, gunners 2
Ammo: Unlimited (power generator)
Body: 4D
Weapons:
Laser Cannon
Fire Arc: Turret
Crew: 2
Scale: Capital
Skill: Capital ship gunnery
Fire Control: 3D
Range: 6-30/75/150 km
Damage: 2D
Materials Cost:
Living/working space: 10,000
Power generator: 30,800
Total, x2 for superior construction materials: 81,600

7 days (-3 days for favorable environment), 4 workers

Labors Costs:
Living/working space: 400
Total: 82,000
Difficulty
Base Difficulty: Moderate
Modifiers:
Favorable environment: -1D
Mild temperatures: -1D
Superior supply network: -1D
Superior construction materials: -1D
Final Difficulty:
New Equipment
Laser Cannon (capital scale, 3D fire control, 2D damage)
Cost: free (surplus from assault frigate modifications)
Labor: 1,225
Time: 7 days

Total: 83,225, character scale
Conversion: 100 (at level for light freighters)
Final Cost: 830, capital scale
Time: 11 days

ATC Gun Tower (large)

Type: Surface-to-space laser cannon
Scale: Starfighter
Skill: Capital ship gunnery: laser cannon
Crew: 0, gunners 10
Ammo: Unlimited (power generator)
Body: 7D
Weapons:
5 Laser Cannons
Fire Arc: Turret
Crew: 2
Scale: Capital
Skill: Capital ship gunnery
Fire Control: 3D
Range: 6-30/75/150 km
Damage: 2D
Materials:
Living/working space: 50,000
Power generator: 34,000
Total, x2 for superior construction materials: 168,000

25 days (-12 days for favorable environment, -7 days for superior supply network), 35 workers

Labors Costs:
Living/working space: 5,250
Total: 173,250
Difficulty
Base Difficulty: Moderate
Modifiers:
Favorable environment: -1D
Mild temperatures: -1D
Superior supply network: -1D
Superior construction materials: -1D
Final Difficulty:
New Equipment
5 Laser Cannons (capital scale, 3D fire control, 2D damage)
Cost: free (surplus from assault frigate modifications)
Labor: 6,125
Time: 7 days

Total: 179,375, character scale
Conversion: 100 (at level for light freighters)
Final Cost: 1,800, capital scale
Time: 13 days

Construction:
20 Small Gun Towers, cost: 16,600
10 Large Gun Towers, cost: 18,000
1,600 BI/a15 Picket Guns, cost: 80,000
Total Cost: 114,600