Cylindrical, with larger diameter retaining ring, chrome-plated, on top; the retaining ring with six equidistant holes drilled vertically through it, for accommodating six chrome-plated rods; bottom retaining ring of same dimensions as one on top; chrome-plated shaft or cylinder on top to which is attached a hexagonal nut with a brass-colored four-sided threaded attachment, the igniter unit, with threaded nipple on top of this attachment, with small hole in center of nipple; short, straight chrome-plated propellant inlet tube jutting out at right angle from shaft on top, with loose-fitting brass-colored B-nut on tube, used for coupling this pipe with detached propellant line from propellant tank when motor was tested; bottom of main cylinder, with short hexagonal nut and built-in exhaust nozzle; in center of cylinder, a cooling jacket, gray-colored, with very light pitting, jacket secured onto main motor (main cylinder), with retaining rods and closure plates Created by Smithsonian National Air and Space Museum Date Created Source Smithsonian National Air and Space Museum Keywords Exploration; Rockets; Space Rights and Restrictions Not determined
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