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Engineering Cost Analysis - An Advanced Space Program Technology Coming Of Age, L. M. Mckay

Space Congress® Proceedings

Cost analysis can be an engineering tool when the proper data are available. This paper discusses what data are required and shows that the data are available and can be used to make design decisions.

Underwater Engineering Photographic Documentation, John P. Jones

Space Congress® Proceedings

For years now the number of underwater structures has been increasing almost as a geometric progression. The complexity of design and construction has increased at an equally impressive rate. Today we are no longer just concerning ourselves with simple towers, pipelines, outfalls, etc., but rather with complex systems such as the Dubai storage tank, sophisticated deep water drilling and production platforms, subsea wellhead completions, undersea collection and separator systems and complex pipeline systems. The engineering design and construction of such structures is rapidly evolving from "brute force", "cut and try" to the science of ocean engineering. Inspection and preventive maintenance …

Redundant Solid-State Sequencer, Duane Starner, Frederick Hull, David Leck

Space Congress® Proceedings

The solid-state sequencer system (S 4 ) was developed under a contract for NASA-MSC. It is completely programmable via a core memory, is very reliable, and uses very little power. The program delivered under contract was to enable a complete duplication of the function of the Apollo relay sequencer. A reprogramming and possible change in the output circuit complement would enable use of the same design for most conceivable space applications such as Space Shuttle and deep-space exploration.

In addition to a reliability goal of 0.999999 for a six-month time period, the system has the requirement that no single failure …

Skylab Facilities And Operations, Robert B. Krause

Space Congress® Proceedings

The purpose of this paper is to outline the essential objectives and elements of the Skylab Program and to describe the impact of the Program on the Kennedy Space Center. The operational test flows and the required facility modifications to support Skylab checkout and launch requirements will be highlighted.

Orbital Cargo Transfer Simulation, Gary P. Beasley, H. Loats, G. S. Mattingly

Space Congress® Proceedings

Future space operations will require transfers of a large variety of cargo under both intravehicular and extravehicular conditions. In order to determine the techniques, human factor considerations, assistive devices, package limitations, training procedures, and so forth related to the cargo transfer problem, extensive ground-based simulation is required.

To date, several zero- and reduced-gravity simulation techniques have been developed and utilized. All of these techniques have both limitations and definite areas of application. Two of these techniques, water-immersion and zero-g aircraft, are considered usable for cargo transfer simulation. However, the results being obtained using the techniques differ substantially. The reasons for …

Space Shuttle Booster Wing Geometry Trade Studies, Heinz G. Struck, Jerome E. Butsko

Space Congress® Proceedings

The subsonic aircraft mode of a Space Shuttle booster establishes design requirements on airbreathing engine size and flyback fuel allotment. Trade study results show the influence of wing geometry variations on the flyback systems weight (wing, jet engine and flyback fuel weight) of a canard Space Shuttle booster. The influence of such wing geometry parameters as aspect ratio and wing area is discussed.

Wing weight trends with wing geometry, obtained from conventional cargo, bomber and fighter airplane weight histories, are correlated with predicted values for Space Shuttle wings where structural span, load factor, and other design parameters are taken into …

Reliability On The Air Force Eastern Test Range, David J. Kempi

Space Congress® Proceedings

The maintainability and operational reliability requirements to operate a one-point-five "billion dollar missile testing range with a myriad of highly technical systems, is obviously of great concern to sustain and improve launch programs.

Preparations In Europe For A Possible Participation In The Post Apollo Program With A Space Tug, Dipling. H. Hoffmann

Space Congress® Proceedings

When in October 1969 the NASA Administrator Dr. Thomas Paine announced in an address to the European Committee of Minister Alternates the invitation of the United States of America to Europe to participate in the Post Apollo Space Program, there were not then many technical details known about this program. The interested European Nations, however, in considering this invitation soon realised that such a participation would only be meaningful if, by their standards, a large amount of money were made available in order to achieve a certain partnership with the United States. This fact, however, could mean the sacrifice of …

Application Of Commercial Aircraft Reliability And Maintainability Philosophy To Reusable Space Vehicles, Harold W. Adams

Space Congress® Proceedings

Reliability and maintainability requirements for reusable space vehicles are more nearly those for an airplane than for a single-use missile or space vehicle.

Commercial aircraft philosophies of optimum redundancy, dispatch with components inoperative, in-flight fault isolation, and on-condition maintenance, and the considerations necessary in applying them to reusable space vehicles are presented.

A reliability and maintainability design philosophy for reusable space vehicles is developed, based on trade-offs that are a function of the vehicle mission parameters.

Saturn S-Ivb Continuous Vent System For Propellent Control During Parking Orbit, R. T. Neher

Space Congress® Proceedings

Cryogenic propellant tanks coasting in space must be vented periodically to prevent excessive pressure. This requires that the liquid be settled with auxiliary ullaging rockets prior to venting to ensure minimum propellant loss. Other problems associated with blowdown of saturated liquids, such as surface level rise and boilover, are severe. The S-IVB, third stage of the Saturn Launch Vehicle, eliminates these problems during the earth parking orbit by continuously venting the liquid hydrogen tank. The boiloff gas is vented in the aft direction providing a continuous settling thrust on the propellants. The philosophy behind the system design is explored and …

Design Considerations For An Orbital Nonpropulsive Vent System, A. L. Sherman, H. F. Buchmann

Space Congress® Proceedings

Minimizing of attitude disturbances during critical maneuvers in space is extremely important to the success of present and future aerospace missions. Thus, a means is needed to ensure that definite attitude positions can be maintained during specific phases of a mission and in some cases indefinitely. To fulfill this requirement, excess or residual propellant vapors and waste gases must be removed with minimum impulse unbalances imparted to the vehicle. The obvious method of accomplishing this is to employ a vent system that dissipates the impulse generated by the various effluents in a nonpropulsive manner. Such nonpropulsive vent (NPV) systems have …

Computer Aided Analysis, Planning, And Control Of Space Systems Operations, D. L. Erickson, R. E. Smith, E. J. De Caroli

Space Congress® Proceedings

The complexity and operational dynamics of modern space systems has dictated a need for computerized tools to assist in the analysis, planning, and control of space system operations. Three computer programs (ACTNET, TLGEN, and WICK 9) which have been applied successfully to these problems are discussed in this paper.

ACTNET is a second generation discrete-event simulation system designed for the functional analysis of complex processes. It is applicable to systems which may be modeled as networks of activities that are constrained by precedence, logical conditions, and limited resources. ACTNET has been employed within the Nuclear Stage, Space Station, and Space …

A Long Duration Orbital Simulator (Ldos) Utilized In Technical Planning Activities, John F. Roach, Walker H. Land

Space Congress® Proceedings

This paper describes the development and use of a long duration orbital simulator (LDOS). The LDOS capabilities, options, accuracy, and central processing unit (CPU) usage are discussed. The applications described using the LDOS are associated with (a) Manned Space Flight Network (MSFN) support of long duration missions, (b) environmental effects on high earth orbits and (c) long term orbit decay. The appendix depicts the salient portions of the math model.

Meeting, Wku Board Of Regents

Board of Regents Documents

Minutes of WKU Board of Regents meeting. Agenda items: sale of Western Towers, College of Applied Arts and Health, personnel and salaries, renovation of College High building and married student housing.

Manpower And Apprentice Training Program, B. B. Myers

Kentucky's Annual Forum on Transportation

No abstract provided.

Pollution Control For Quarry Operations, J. W. Render

Kentucky's Annual Forum on Transportation

No abstract provided.

Pollution Control Anti-Pollution Construction, C. W. Sigler

Kentucky's Annual Forum on Transportation

No abstract provided.

Anti-Pollution Design, E. B. Gaither Jr.

Kentucky's Annual Forum on Transportation

No abstract provided.

Status Of The Five Year Highway Program, J. R. Harbison

Kentucky's Annual Forum on Transportation

No abstract provided.

Professionalism - The Challenge Of The 70'S, Sammie F. Lee

Kentucky's Annual Forum on Transportation

No abstract provided.

Concrete Slip-Form Paving For Secondary Roads, George D. Timm

Kentucky's Annual Forum on Transportation

No abstract provided.

Maintenance Management, John D. Witt, B. H. Banks

Kentucky's Annual Forum on Transportation

No abstract provided.

Roadside Safety, John A. Deacon

Kentucky's Annual Forum on Transportation

No abstract provided.

Maintenance Levels: What, Why, Where And How, Adrian G. Clary

Kentucky's Annual Forum on Transportation

No abstract provided.

Subaqueous Interstate Highway Tunnel Design And Construction, Earl F. Cecil

Kentucky's Annual Forum on Transportation

No abstract provided.

Quality Control In Structural Fabrication, C. F. Jarrard Jr.

Kentucky's Annual Forum on Transportation

No abstract provided.

The "Topics" Program, H. Milton Heywood

Kentucky's Annual Forum on Transportation

No abstract provided.

Utilities-Highway Location, N. W. Coomes

Kentucky's Annual Forum on Transportation

No abstract provided.

Remarks By John M. Branham, John M. Branham

Kentucky's Annual Forum on Transportation

No abstract provided.

Remarks By Bill E. King, Bill E. King

Kentucky's Annual Forum on Transportation

No abstract provided.