We propose a sustainable system based and built on aeronautics experience and its developments. For instance, we will launch our spaceplane from a Zero-G certified Airbus A300, and the spaceplane will use standard fuels, with no fuel required during landing after a suborbital flight.
That way, we are building the most economic and ecological model available today. Nothing is lost on a flight. The main components used during the flight are re-usable and we intend to develop ground operations known from aviation such as inspection, repair and equipment replacement activities.