All-Composite Cryogenic Tanks Scorpius® high level propellant tank requirements: Weight: less than 4 lb/ft3 at 600 psi. Life / Reliability: 5 thermal + 25 pressure cycles, leak-before-burst. Design characteristics for order-of-magnitude reduction in tank cost - All-composite design - metal tanks and liners are expensive and heavy - Out-of-autoclave process - saves labor, time, tooling, capital, and material costs. - Filament wound - lower material and labor costs. - Integral inner tank skirts. - All-composite fuel tank successfully flown in SR-XM-1 launch vehicle! - All-composite LOX tank successfully flown in Garvey Spacecraft Corp. Rocket!

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