QUARTIX Techtree is divided into four branches, each with four or so strands.
To unlock tier 5 and tier 8 you will need to upgrade the R&D building respectively.
Requires Module Manager (not included).
*NOT COMPATIBLE WITH other tech trees such as CTT.
Tree Branches and Strands
* Crew Command and Cabins * Crew Landers and Support
* Jet Propulsion * Propellor Propulsion * Liquid Fuel Rockets * Solid Boosters
* Engineering * Construction * Fuel Systems * Aerodynamics
* Flight Control and Probes * Electrics and Imaging
This is designed to work with a limited number of mods:
Kerbalism and KerbalismSimplex
EITHER Stockalike Mining Expansion
OR BAHA EPL
EVA Fuel Transfer