The

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The human settlement of space will involve the design, fabrication, testing, deployment, operation, replenishment, maintenance, repair, and disposal of a wide spectrum of space operations and transportation systems. These will include reusable launch vehicles, orbiting space stations, space tugs, interplanetary transports, and planetary bases. This paper discusses the importance of carefully and systematically undertaking the systems engineering planning of the basic infrastructure for the first phase of this settlement. Further, this paper proposes a basic space infrastructure planning requirement, derived functional requirements, functional elements and functional interfaces that may serve as a starting point for further analysis and refinement.

This paper describes a concept of a large flying fuselage transport aircraft that carries the cargo or missionized payload in several large, detachable modules instead of carrying this cargo or payload internally as in current aircraft designs. The paper addresses the application of this concept to the global military airlift missions of air refueling, materiel transport, and persistent air power projection. The paper concludes with a brief discussion of the extension of this module-based aircraft design to other emerging military and commercial air transport needs. Nomenclature ton = 2,000 lb or 907 kg I. * This increase of approximately 3,200 kg (7,000 lb) is taken from page 28 of the Ref. 19. † The 14,000 tons includes 1,225 tons of added armor weight as noted on page 28 of the Ref. 19. ‡ Recall that the new C-130J and C-130J-30 have a maximum payload of 19,000 kg (42,000lb) and 20,000 kg (44,000 lb), respectively. * This timeline assumes a hydrant system for refueling with two hookups to the aircraft, each with an average flow rate of 450 gallons per minute. Onloading 22,000 gallons of fuel would require approximately 30 minutes.

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