Space shuttle with rail system and aft thrust structure securing solid rocket boosters to external tank

Claim 1

In a space shuttle having an orbiter spacecraft with main rocket engines, an external tank for propellants parallel to said orbiter spacecraft, and a pair of solid rocket boosters on opposed sides of said external tank, the improvement comprising; said external tank having a forward cylindrical pressure vessel for holding liquid hydrogen, an aft cylindrical pressure vessel with end domes for holding liquid oxygen, and a cylindrical intertank structure joining the two pressure vessels together; said forward pressure vessel being parallel and extending ahead of the orbiter spacecraft and said aft pressure vessel being parallel and within the length of said orbiter spacecraft; said solid rocket boosters joined together with a structural frame adjacent their rocket nozzle ends, said frame extending behind said external tank and adapted to apply the thrust generated by said rocket boosters to the aft cylindrical end of said external tank; said aft pressure vessel having a cylindrical wall extension which defines a usable space about the aft end dome of said aft pressure vessel; cylindrical cover means on said structural frame severably secured to the rear of said cylindrical wall extension; means rigidly securing the orbiter spacecraft to the cylindrical wall of said aft pressure vessel so as to apply the thrust of the rocket engines of said orbiter spacecraft to the structural wall of said aft pressure vessel; said external tank having a pair of guide rail means positioned axially on its outer surface and adjacent each said solid rocket booster' and each said solid rocket booster having slider means engaging its adjacent rail means whereby said rocket boosters when depleted may slide backward and disengage from said external tank by severing said cylindrical cover means of the structural frame from said cylindrical wall extension.