Description
A small cheap SSTO for your crew exchangement needs, small payloads and station service! It has 2 Sparks because they have a slightly higher ISP than the Sabre and barely add weight. Try to leave atmospheric mode above 1400m/s. Otherwise add some more fuel.
A stock aircraft called Firefly. Built with 47 of the finest parts, its root part is Mark1Cockpit.
Built in the SPH in KSP version 1.2.1.