The rules for external expansion bays are basically :
- 1 external expansion bay = 1 additionnal bay slot
- They can be added on an small or larger ship
- Their number can not exceed the number of bay slots provided by the base frame
- They reduce the ship manoeuvrability by 1 for every 3 expansions bays installed, ROUNDED up : -1 for 1 to 3 EB, -2 for 4 to etc.
Thanks !