Two-Stage To Orbit (TSTO) takes off from Nedumbassery Kochi International Airport (COK). First stage is derived from an Airbus A380 airframe with LOX collection. The second stage, seen attached inside and to the aft of the A380, starts as LOX-LH2 rocket at 60,000 feet, and transitions to ramjet at Mach 2, SCRAMJET at Mach 4.5 and back to rocket at Mach 8-10, 100km altitude (Von Karman Limit). It can take and return 25000kg payload to/from LEO. Based on ASME IMECE Papers in 2017 and 2018. The A380 stage can return to base, while the second stage returns to any of many such airports located in the tropical zone around the planet. Such an architecture can achieve airline-level safety, efficiency, frequency and cost for Space operations with a standard 25000kg payload capability. Opening access to resources at least up to the Asteroid Belt, this will enable a massive Space-Based Economy, far larger than today's terrestrial economy. It is feasible today.Â