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    a new vehicle design please give me some advices

    Total: Mass 32.451 t Payload 0.472 t 1.041 t (include fairing and controls) Atom ∆V 7993 m/s Vacu ∆V 9435 m/s First stage: Propel mass 22.838 t (ratio) LH2 46055.2 LO2 17155.3 Tank mass 1.662 t Total mass 26.816 t Engine mass 0.143*7 (1.001) t Thrust 54.813*7 (383.691) KN Isp...
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