The Demi-Sprite launch vehicle is a small, on-demand launcher that can put up to 160 kg into LEO for a recurring launch cost of $3.6 M. It consists of a core stage which is actually the SR-M suborbital vehicle, surrounded by 6 identical pods that compose stages 1 and 2. Demi-Sprite provides true Launch-on-Demand service from a flat pad with minimal infrastructure within 8 hours of arrival of the payload at the launch site. It is capable of all-weather launch through 99.9% of winds aloft. It is scalable to much larger vehicles using the same technology and basic vehicle design. The very strong, low-mass, all-composite, unibody structure/propellant tanks allows elimination of turbo pumps that make most modern rockets extremely complex and high risk products. The only moving parts on the vehicle are valves and gimbals.