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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.

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At least 37 records · Page 2
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NASA NTRS1977

Space processing on Skylab and ASTP

The Skylab and Apollo Soyuz Test Project (ASTP) missions provided the opportunity the influence of micro-gravity on the processing of various materials. The results of physical and engineering experiments in metallurgy, fluids handling and crystal growth on two space missions are discussed. The majority of the experiments concern the solidification of alloys, semiconductors, and composite materials or basic liquid-liquid and solid-liquid interactions necessary to understand complex processing. Potential advantages of space processing to several materials disciplines are identified.

Snyder, R. S.↗
NASA NTRS1976

Joint inflight biomedical experiments performed during the ASTP spaceflight

Two joint inflight biomedical experiments were conducted during the unique Apollo-Soyuz Test Project (ASTP) spaceflight. One experiment evaluated rhythmicity of spore production of Streptomyces levoris. The other evaluated components of the infectious disease process by measuring alteration in: (1) the composition of the microbial population inhabiting USA and USSR crewmembers and spacecraft; (2) the ability of each crewmember's defense mechanism to resist infection; and (3) the ability of certain microorganisms to originate infections. These two experiments are described and the major results discussed.

Taylor, G. R.↗
NASA NTRS1977

Analysis of results of ASTP experiment in electrophoresis

The Apollo-Soyuz Test Project (ASTP) included an electrophoretic separation experiment of biological cells. The nature separation results of aldehyde-fixed rabbit, human and horse red blood cells, which were taken in the form of photographs taken at three-minute intervals, are the subject of this report. The electrophoretic separation was successful in that fractionation according to mobility did occur and was found in the sliced samples. Photographic evidence indicates that the low electroosmotic methylcellulose coating was successful in reducing the electroosmosis to a near zero value. Also, the flight film shows that the bands migrated down the column as theory would predict, producing two bands of high cell concentration separated and surrounded by regions of lower cell concentration. However, most likely some clumping of cells occurred to cause the trailing band to be larger than expected from theory. Overall, the experiment was a success in demonstrating a static electrophoresis separation under microgravity conditions with a resolution not possible on earth.

Vanderhoff, J. W.↗
NASA NTRS1978

Liquid spreading ASTP Science Demonstration

Wetting and spreading phenomena are significant in a wide variety of processes. This report discusses the results of an ASTP Science Demonstration, 'Liquid Spreading', and compares these results to theoretical predictions. On earth the initial spreading of large liquid drops on solid surfaces is always dominated by gravity; in this demonstration the effect of gravity is greatly reduced so that surface energy forces are the controlling factor.

Bourgeois, S. V.↗
NASA NTRS2000

ASTP RBCC Activities

This presentation reviews the activities of the Advanced Space Transportation Program (ASTP) in the development of Rocket-Based Combined Cycle (RBCC)technology. The document consist of the presentation slides for a talk scheduled to be given to the World Aviation Congress and Exhibit of SAE. Included in the review is discussion of recent accomplishments in the area of Advanced Reusable technologies (ART), which includes work in flowpath testing, and system studies of the various vehicle/engine combinations including RBCC, Turbine Based Combined Cycle (TBCC) and Pulsed Detonation Engine (PDE). Pictures of the proposed RBCC Flowpaths are included. The next steps in the development process are reviewed.

Nelson, Karl W.↗
NASA NTRS1975

ASTP Visual Observation Debriefing

This document is the transcription of the post-flight experiments debriefing conducted by the ASTP (Apollo Soyuz Test Project) crew at the Lunar Science Institute on August 12, 1975. The companion document to this transcription is the Experiments Debriefing. Where possible, questioners have been identified by their last names. However, the attendees and questioners are too numerous to identify or list here. The astronaut participants are as follows: Thomas P. Stafford, Commander; Vance D. Brand, Command Module Pilot; Donald K. Slayton, Docking Module Pilot.

Source record↗
NASA NTRS1974

ASTP simulated lightning test report

A simulated lightning test was conducted on the backup spacecraft for the Apollo Soyuz Test Project mission (CSM-119) to determine the susceptibility of the Apollo spacecraft to damage from the indirect effects of lightning. It is demonstrated that induced lightning effects from low-level injected currents can be scaled linearly to those which are obtained in a full threat lightning stroke. Test results indicate that: (1) many of the power and signal critical circuits would fail if subjected to full-threat lightning, (2) pyrotechnic circuits are safe for full-threat lightning, and (3) common-mode voltages exceeded the failure criteria level for all but three of the circuits tested.

Blount, R. L.↗
NASA NTRS1975

Flight simulation for flight control computer S/N 0104-1 (ASTP)

Flight control computer (FCC) 0104-I has been designated the prime unit for the SA-210 launch vehicle. The results of the final flight simulation for FCC S/N 0104-I are documented. These results verify satisfactory implementation of the design release and proper interfacing of the FCC with flight-type control sensor elements and simulated thrust vector control system.

Source record↗
NASA NTRS1975

ASTP (SA-210) Launch vehicle operational flight trajectory. Part 3: Final documentation

Trajectory data are presented for a nominal and two launch window trajectory simulations. These trajectories are designed to insert a manned Apollo spacecraft into a 150/167 km. (81/90 n. mi.) earth orbit inclined at 51.78 degrees for rendezvous with a Soyuz spacecraft, which will be orbiting at approximately 225 km. (121.5 n. mi.). The launch window allocation defined for this launch is 500 pounds of S-IVB stage propellant. The launch window opening trajectory simulation depicts the earliest launch time deviation from a planar flight launch which conforms to this constraint. The launch window closing trajectory simulation was developed for the more stringent Air Force Eastern Test Range (AFETR) flight azimuth restriction of 37.4 degrees east-of-north. These trajectories enclose a 12.09 minute launch window, pertinent features of which are provided in a tabulation. Planar flight data are included for mid-window reference.

Carter, A. B.↗
NASA NTRS1975

ASTP Onboard Voice Transcription

The transcription is presented of the Apollo-Soyuz Test Project voice communications as recorded on the command module data storage equipment. Data from this recorder are telemetered (dumped) to Space Tracking and Data Network sites for retransmission to the Johnson Space Center. The transcript is divided into three columns -- time, speaker, and text. The Greenwich mean time column consists of three two-digit numbers representing hours, minutes, and seconds (e.g., 22 34 14) for the Julian dates shown at the top of the page on which a new day begins. The speaker column indicates the source of a transmission; the text column contains the verbatim transcript of the communications.

Source record↗
NASA NTRS1975

ASTP Technical Air-To-Ground Voice Transcription

The transcription of the technical air-to-ground voice communication of the Apollo-Soyuz Test Project mission was presented. The transcript was divided into three columns giving, respectively, the time, speaker, and text. All times are expressed in Greenwich mean time for the appropriate Julian dates. The speaker column indicates the source of transmission; the text column contains the verbatim transcript of the communications. Special symbols were used to report garbling, pauses or self-interruptions, interruptions by other speakers or abrupt terminations, emphasized words, obliterations, and material translated from Russian.

Source record↗
NASA NTRS1976

Development of polymeric coatings for control of electro-osmotic flow in ASTP MA-011 electrophoresis technology experiment

The development of a methyl cellulose based coating system for control of electro-osmotic flow at the walls of electrophoresis cells is described. Flight electrophoresis columns were coated with this system, resulting in a flight set of six columns. In flight photography of MA-011 electrophoretic separations verified control of electro-osmotic flow.

Patterson, W. J.↗
NASA NTRS1974

ASTP video tape recorder ground support equipment (audio/CTE splitter/interleaver). Operations manual

A descriptive handbook for the audio/CTE splitter/interleaver (RCA part No. 8673734-502) was presented. This unit is designed to perform two major functions: extract audio and time data from an interleaved video/audio signal (splitter section), and provide a test interleaved video/audio/CTE signal for the system (interleaver section). It is a rack mounting unit 7 inches high, 19 inches wide, 20 inches deep, mounted on slides for retracting from the rack, and weighs approximately 40 pounds. The following information is provided: installation, operation, principles of operation, maintenance, schematics and parts lists.

Source record↗
NASA NTRS1975

ASTP video tape recorder ground support equipment, addendum 1 (CTE splitter/buffer). Operations manual

A descriptive handbook for the CTE splitter (RCA part No. 8673734-503) was presented. This unit is designed to extract time data from an interleaved video audio signal. It is a rack mounting unit 7 inches high, 19 inches wide, 20 inches deep, mounted on slides for retracting from the rack, and weighs approximately 40 pounds. The following information is provided: installation, operation, principles of operation, maintenance, schematics and parts lists.

Source record↗
NASA NTRS1975

ASTP video tape recorder ground support equipment, addendum 2 (CTE splitter/buffer). Operations manual

A descriptive handbook for the CTE splitter (RCA part No. 8673734-50A) was presented. This unit is designed to extract time data from an interleaved video/audio signal. It is a rack mounting unit 7 inches high, 19 inches wide, 20 inches deep, mounted on slides for retracting from the rack, and weighs approximately 40 pounds. The following information is provided: installation, operation, principles of operation, maintenance, schematics and parts lists.

Source record↗
NASA NTRS1976

ASTP chemical and microbiological analysis of potable water

The Apollo-Soyuz Test Project procedures for potable water system servicing and the results of preflight and postflight chemical and microbiological analyses of the water are discussed. Tables show results of the analyses. The effectiveness of the water system is evaluated.

Sauer, R. L.↗
NASA NTRS1976

Summary of the pre-ASTP results

A general overview of materials experiments done on several Apollo missions and Skylab as well as the ground research that led to these experiments is given. Demonstrations of composite solidification, electrophoresis, and fluid flow were developed for Apollo. Fourteen different experiments in metal processing and single crystal growth were done in the space processing facility on Skylab. Metals were melted and solidified in a variety of configurations using different methods of heating to produce improved alloys and composite materials. Single crystals were grown by directional solidification and vapor transport to achieve uniform crystalline perfection, decreased structural defects, and homogeneity of the dopant material.

Snyder, R. S.↗