Heavy-lift launch vehicle

A heavy-lift launch vehicle (HLV) is an orbital launch vehicle that could lift payloads between  into low Earth orbit (LEO).NASA Space Technology Roadmaps – Launch Propulsion Systems, p.11 : "Small: 0-2t payloads, Medium: 2-20t payloads, Heavy: 20-50t payloads, Super Heavy: >50t payloads" 

References

Category:Spacecraft