Rocket Engine, Liquid Fuel, Vanguard Launch Vehicle, First Stage

Cylindrical with flared nozzle below, propellant inlet pipes, yellow, running vertically, partly straight and partly bent, along three sides of the combustion chamber, and screwed into the top of the periphery of the thick nozzle base; associated plumbing on top of the cylindrical combustion chamber, including the two vertical centrifugal propellant pumps on opposite side of each other, and also a protruding aluminum frame-like thrust structure; chamber overall, gray and silver.