VX-S1 "VADULE"
Ultra-Light Engine
VX-O3 "Catalyst"
3.75m Orbital Operations Engine
VX-6 "Landerspike"
1.25m Advanced Shrouded Aerospike
VX-O1 Impulse
1.25m Orbital Operations Engine
VX-C9 Constellation
2.5m Mid-Range Engine - Covers the gap between the Skipper and Mainsail
VX-O2 "Big Impulse"
2.5m Orbital Operations Engine
VX-1 Hornet
1.25m Heavy Lift Engine