This pack is an optional add-on for the SSTU mod (here) that adds a new maximum diameter for SSTU procedural and semi-procedural parts up to 20m, new engine cluster layouts from 10 engine up to 19 61 engines for all SSTU engines (the one above has 18x F-1 engines) and a M-1 engine (modified J-2 model). This only includes config files, no other assets are included This pack works with Realism Overhaul, except for the M-1 engine (RO has it's own SSTU M-1). Dependencies: SSTU Module Manager (