Search NASA⌕ Search

SEARCH · Search NASA

Results for “Cargo”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 271 records · Page 15
All sourcesNASA NTRSDOE OSTI
NASA NTRS1983

Processing cargoes for the first two operational STS flights at KSC

Payload and spacecraft check-out procedures followed at Kennedy Space Center (KSC) are described, and examples are furnished of Shuttle missions STS-5 and -6. Reliability must be assured in order to account for isolated operation in GEO once the satellites are released from the Orbiter. The spacecraft processing is handled in distinct flows that depend on the type of boost engine attached, e.g., the PAM-A, -D, or the IUS. Interface verification occurs in the Vehicle Processing Facility (VPF), which is equipped to store the payloads until an Orbiter is ready. Spacecraft are assigned to their respective processing lines by the Launch Site Support Manager. The STS-5 Orbiter was fitted with Getaway Specials, the SBS-C satellite, and the Anik-C spacecraft, and STS-6 carried the TDRSS-A spacecraft, which was mated to an IUS, three Getaway Specials, and two experiments for the pressurized cabin. The time necessary for preparing payloads is intended eventually to be reduced to 3 weeks.

Neilon, J. J.↗
NASA NTRS1987

Definition of a space transportation systems cargo element (Shuttle-C). Orientation

The Martin Marietta Shuttle-C project organization has been tailored to fit the tasks required for the Phase B study. Lead responsibilities have been assigned for Program Control, Safety, Reliability, and Quality Assurance (SR and QA); Systems Engineering and Integration (SE and I); Design and Analysis; Production and Test; and Operations. Details of the Performance Review and Orientation Program of November 1987 are given.

Source record↗
NASA NTRS1989

Definition of avionics concepts for a heavy lift cargo vehicle, appendix A

The major objective of the study task was to define a cost effective, multiuser simulation, test, and demonstration facility to support the development of avionics systems for future space vehicles. This volume provides the results of the main simulation processor selection study and describes some proof-of-concept demonstrations for the avionics test bed facility.

Source record↗
NASA NTRS1990

Cargo launch vehicles to low earth orbit

There are two primary space transportation capabilities required to support both base programs and expanded mission requirements: earth-to-orbit (ETO) transportation systems and space transfer vehicle systems. Existing and new ETO vehicles required to support mission requirements, and planned robotic missions, along with currently planned ETO vehicles are provided. Lunar outposts, Mars' outposts, base and expanded model, ETO vehicles, advanced avionics technologies, expert systems, network architecture and operations systems, and technology transfer are discussed.

Austin, Robert E.↗
NASA NTRS1990

STS Derivative Cargo Vehicles for the 1990's decade and beyond

Shuttle-derived vehicle options are described in the context of supporting earth-LEO space transportation for the lunar and Mars missions. An evolutionary model is delineated which can provide heavy-lift capabilities for these missions with a system based on STS booster elements. The Shuttle-C unmanned launch system and the Mars heavy-lift launch vehicles (HLLV) are examined as reference vehicles with launch configurations illustrated for lunar and Martian transportation scenarios. The Shuttle-C prelunar vehicle can be modified for lunar transportation as the Shuttle-C Block I which can then be extended to a two-stage HLLV by adding a third stage in the form of a Mars transfer vehicle. The development of a liquid-rocket booster is proposed to replace the STS solid booster for added mission flexibility. The use of shuttle-derived vehicles is concluded to be an effective means for supporting the lunar and Mars initiatives while minimizing near-term costs.

Shelton, Billy W.↗
NASA NTRS1991

National launch system overview with focus on cargo transfer vehicle

As a result of the Augustine Committee's recommendation to the National Space Council, NASA, and the DOD have embarked on a joint program to provide the nation with a new capability for transporting payloads into space. The National Launch System (NLS) consists of a family of modular launch vehicles, combining elements of current launchers (Titan and Shuttle) with newly developed components. This family consists of (1) NLS-1 (a vehicle capable of delivering 80 k to SSF), (2) NLS-2 (a vehicle capable of delivering 50k to LEO), and (3) NLS-3 (a vehicle capable of delivering 20 k to LEO). Management of the program is shared between the two agencies with a Joint Program Office carrying out the level 2 management and integration function while both the NASA and Air Force field organizations are charged with the various development and operational responsibilities.

Buchanan, Harry↗
NASA NTRS1991

Fully autonomous navigation for the NASA cargo transfer vehicle

A great deal of attention has been paid to navigation during the close approach (less than or equal to 1 km) phase of spacecraft rendezvous. However, most spacecraft also require a navigation system which provides the necessary accuracy for placing both satellites within the range of the docking sensors. The Microcosm Autonomous Navigation System (MANS) is an on-board system which uses Earth-referenced attitude sensing hardware to provide precision orbit and attitude determination. The system is capable of functioning from LEO to GEO and beyond. Performance depends on the number of available sensors as well as mission geometry; however, extensive simulations have shown that MANS will provide 100 m to 400 m (3(sigma)) position accuracy and 0.03 to 0.07 deg (3(sigma)) attitude accuracy in low Earth orbit. The system is independent of any external source, including GPS. MANS is expected to have a significant impact on ground operations costs, mission definition and design, survivability, and the potential development of very low-cost, fully autonomous spacecraft.

Wertz, James R.↗