Rocket engine combustion chamber having multiple conformal throat supports

In a first assembly step a coolant liner (10) is formed having an outside surface. A plurality of coolant channels (12) are formed on the outside surface. At least two inner conformal throat support sections (14, 16) and at least two outer conformal throat support sections (20, 22) are formed. The two inner conformal throat support sections (14, 16) are formed around the outside surface of the coolant liner (10) to form a closed inner conformal throat outside surface. The inner conformal throat support sections are joined at inner throat seam lines (18). At least two outer conformal throat support sections (20, 22) are assembled around the closed inner conformal throat outside surface so as to cover the inner throat seam lines (18), to form a liner throat support assembly. An inlet manifold (24) and an outlet manifold (26) are assembled around the liner throat support assembly to form a hot isostatic press (HIP) assembly (28). A HIP'ed assembly is formed by HIP'ing the HIP assembly.