Rocket Engine, Liquid Fuel, Super Sprite, Cut Away

Elongated stainless steel propellant tank, rounded on both ends; adjoined at on lower end to bundle of nine seamless elongated nitrogen tanks which surrounding combustion chamber. On bottom of bundle is rounded section with built-in exhaust nozzle. Propellant feed pipe leading from top half of propellant tank, down side of this tank, down side of nitrogen tank bundle, and into combustion chamber top. The whole, cut away to reveal interior of combustion chamber, typical nitrogen tank interior, and other sections.