An “Extradimensional Interface” system (SS7 p.8) reduces the external volume (and thus the surface area) of a vehicle by 4 or 8 SM. A “Force Screen” (SS1 p.16) is projected outside the vehicle’s hull and its dDR is determined by its “thickness” which increases with the vehicle’s surface area/internal volume ratio. Therefore, to find the strength of a screen on a vessel using EI systems, find its strength for the reduced
external volume and multiply it by 100 for one EI system or
10,000 for two. Discuss?
Dalton “No wonder the TARDIS is damn near indestructible!” Spence