New Glenns first stage (GS1) is designed to be reusable for a minimum of 25 flights, and will land vertically, a technology previously developed by Blue Origin and tested in 2015âÂÂ2016 on its New Shepard suborbital launch vehicle. The second stage (GS2), which is tall and has the same diameter as GS1, is expendable. Both stages use orthogrid aluminum tanks with welded aluminum domes and common bulkheads, as well as autogenous pressurization.
The first stage is powered by seven BE-4 methane/oxygen enginesâÂÂdesigned and manufactured by Blue OriginâÂÂproducing of liftoff thrust. The second stage is powered by two BE-3U vacuum optimized engines, also designed and manufactured by Blue Origin, using hydrogen/oxygen as propellants.