A steady-state model for first-order magnitude estimates of lunar base
masses is presented. The main focus of the model is the derivation of
initial and annual resupply mass estimates for a lunar base at certai
n development stages. These estimates are not only a function of sever
al thousand input parameters and boundary conditions such as crew size
; lunar base location; and environmental conditions, but also specific
system masses; specific power requirements; and specific thermal load
s. This integrated lunar base model indicates which systems and subsys
tems have the greatest mass impact on the overall base. Also, brief ov
erviews of possible activities at a lunar base and of lunar developmen
t strategies are given.