Injector Head, Rocket Engine, R.H. Goddard, Ca. 1929-1930

Circular, with truncated, hollow pyramid welded on top; two vertical pipes, side by side projecting from top, one shorter than the other; very rough (hand applied) ceramic coating over injector holes underneath disc; single hoop-like pipe arched from one side of the cylinder top, then meeting in the middle and attached to the upright vertical pipes, then continuing over the other side of the vertical pipes and similarly attached to the opposite side of the cylinder top. (This circular pipe was known as the "curtain" in Goddard's notes, Vol. III, p. IX-19, cited below. [Note, however, that original picture in Goddard notebook cited, WORK PERFORMED AT CAMP DEVENS, or Vol., III, Fig. 19, labeled "Chamber used in Second Test of March 4, 1930, shows two other hoops arching over pyramid, forming five hooped pipes altogether and attached to the two central pipes on top. This injector might therefore either be incomplete and lacking the other two hoops or it might be a variation of this injector.]