SPACECRAFT BARBETTES ON VEHICLES
This seems odd
1. The Energy Weapons Table shows that barbette-sized weapons weigh 20 tons and take up 80 spaces. This would imply a vehicle-mounted version of a spacecraft barbette (5 displacement tons) is equivalent to 40 displacement tons when placed on a vehicle
2. The Spacecraft-Scale Weapons chapter says "A barbette weapon consumes 20 Spaces inside the vehicle for its turret-like mounting and 5,000 kilograms or five tons for determining the mass of weapons a vehicle can mount". This version of the barbette is equivalent to 10 displacement tons.
Spacecraft weapons seem to become bigger when placed on vehicles. The Spacecraft-Scale Weapons chapter says "To place a spacecraft weapon into a vehicle, multiply the tonnage of the weapon by four. This is how many Spaces it will consume, to a minimum of one Space."
Similarly, a 50-ton bay takes up 200 spaces. Presumably, this is because of he abstract nature of vehicle spaces. [Half of a vehcile's volume is used for engines, transmissions, etcetera]. I can accept this. But why are barbettes so HUGE in the Energy Weapons Table? Their weight and spaces seem to be 4 times the specific stats in the text. Did someone do the 4-times multiplier TWICE?