Figures 20 through 23 show conceptual drawings of a 1,000,000 pound payload class heavy lift launch vehicle. Figure 20 gives views of the booster stage and the packaging of its 20 engines. In this figure the ABE's are shown mounted on a canard with moveable inlet closures for ascent heat protection. Figure 21 gives illustrations of the straight wing upper stage and its 7 ascent boost engines. Canards are also shown for this stage. A view showing this vehicle in a parallel burn configuration is given in Figure 22. Figure 23 gives an illustration of an HLLV in a stacked, series burn configuration.
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