A hangar requires the volume of the small craft plus 30 %, which is the
space necessary to load and unload the small craft and to carry out the
maintenance and repairs.
So, if you want a hangar for a small craft, you take the small craft's vo-
lume and add the 30 % for the access space, but you do not count the
volume of the small craft twice - a pinnace plus hangar requires 52 dt,
not 92 dt.