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Design Considerations for Orbital Transport Systems
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Sector:
Event:
Space Technology Conference
Language:
English
Abstract
Applications of Earth orbital platforms like communication satellites have already achieved a commercial value in their own right. Other Earth centered operations like weather satellites offer the possibility of a commercial status since they affect our daily lives by supplying information on the state of nature around us.
We, therefore, feel justified in assuming that a solid basis for expansion of Earth-orbital operations exists. Present projections of manned and unmanned orbital launch requirements indicate that more economic means of space transportation will be needed.
Starting from our present day hardware, the key question is, should we simplify or sophisticate our vehicle concepts? The paper addresses the two following problem areas:
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1.
The implications of operational “requirements” on systems design, performance and cost: These considerations include mission parameters, considerations of man's safety and comfort, overflight of populated areas, sonic boom, abort and flyback capability, vehicle turn-around, etc.
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2.
The implementation of the systems development: Do we propose a quantum jump requiring a large, concentrated development expenditure, or is there an alternative in a more modestly paced evolutionary approach in which annual funding and development risk are limited?
Various development approaches and their systems sensitivities were put into context with a mission model and evaluated for utility, cost and development risk.
The first new development seen is that of a reusable passenger vehicle designed for orbital use to replace the Apollo command and service modules. Next, or concurrent, are improvements in economy and operations of the launch vehicle. Partially reusable transportation systems appear most promising on the basis of the mission model used. Relatively small additional savings, associated with high uncertainties, may be expected from a fully reusable system. A choice will have to be made on the basis of economical growth potential and operational considerations.
In the case of funding-intensive developments, such as reusable launch vehicle stages, an evolutionary development provides a capability extension at a reduced annual funding rate resulting in only a Slight penalty in total program cost.
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Authors
Citation
Fellenz, D. and Akridge, C., "Design Considerations for Orbital Transport Systems," SAE Technical Paper 670383, 1967, https://doi.org/10.4271/670383.Also In
References
- Lockheed California Co. “Design Studies of a Reusable Orbital Transport, First Stage.” Final Report to NASA Marshall Space Flight Center under Contract NASS-11319, LR 18790 May 1965
- General Dynamics/Convair “Reusable Orbital Trans port, Second Stage.” Final Report to NASA Marshall Space Flight Center under Contract NASS-11463, GD/C-DCB-65-018 April 1965
- Martin Co., Denver Div. “Reusable Aerospace Passenger Transport - Launch Mode Comparison Study.” Final Report to NASA Marshall Space Flight Center under Contract NASS-20277, CR-66-34 July 1966
- Love Eugene S. “Manned Lifting Entry,” Astronautics and Aeronautics 4 5 May 1966 54 64
- Akridge Charles M. Unpublished Working Papers on Modulated Abort July 1965
- Fellenz Dietrich W. “Design Sensitivities of Multi-Stage Launch Vehicles.” NASA-MSFC/ASO-IN-1-67 April 1967
- Lockheed California Co. “Reusable Aerospace Passenger Transport System, Study of Incremental Systems Development Approaches and Applications.” Final Reports to NASA Marshall Space Flight Center under Contract NASS-20294 September 1966
- Lockheed California Co. “Reusable Aerospace Passenger Transport System, Study of Incremental Systems Development Approaches and Applications,” Final Reports to NASA Marshall Space Flight Center under Contract NASS-20294 September 1966
- The Martin Co., Denver Div. “Reusable Aerospace Passenger Transport, Launch Mode Comparison Study.” Final Reports to NASA Marshall Space Flight Center under Contract NASS-20277 July 1966
- Diven J. L. Daniels J. W. “Ascent and Descent Abort Flight Corridors for Orbital Transport Vehicles.” Final Report to NASA Marshall Space Flight Center under Contracts NASS-5289 and NASS-20073 1965
- Lockheed California Co. “Design Studies of a Reusable Orbital Transport, First Stage.” Final Reports to NASA Marshall Space Flight Center under Contract NASS-11319 March 1965
- General Dynamics/Convair “Reusable Orbital Transport, Second Stage.” Final Reports to NASA Marshall Space Flight Center under Contract NASS-11463 April 1965
- North American Aviation, S&ID “Study to Develop Systems Criteria for Reusable Launch Vehicle Concepts.” Final Reports to NASA Marshall Space Flight Center under Contract NASS-11386 June 30 1965
- The Boeing Co., Aerospace Div. “System Criteria for Launch Vehicle Systems.” Final Reports to NASA Marshall Space Flight Center under Contract NASS-11429 May 1965
- North American Aviation, S&ID, “Study of Ten Passenger Reusable Orbital Carrier (Phase II).” Final Reports to NASA Marshall Space Flight Center under Contract NASS-5037 March 1964
- Lockheed California Co. “Reusable Ten Passenger Orbital Carrier Vehicle (Phase II).” Final Reports to NASA Marshall Space Flight Center under Contract NASS-2687 March 1964
- North American Aviation, S&ID, “Reusable Ten-Ton Orbital Carrier Vehicle.” Final Reports to NASA Marshall Space Flight Center under Contract NASS-5037 February 1963
- Lockheed California Co. “Reusable Ten-Ton Orbital Carrier Vehicle,” Final Reports to NASA Marshall Space Flight Center under Contract NASS-2687 February 1963
- McDonnell Aircraft Co. “Mission Requirements of Lifting Systems - Engineering Aspects.” Final Reports to NASA Manned Spacecraft Center under Contract NAS9-3562 August 1965
- The Boeing Co. “Mission Requirements of Lifting Systems - Operational Aspects.” Final Reports to NASA Manned Spacecraft Center under Contract NAS9-3522 June 29 1965
- Douglas Aircraft Co., Inc. “Parametric Study of Logistics - Type Entry Vehicles.” Final Reports to NASA Mission Analysis Division under Contract NAS2-2461 September 1965
- Douglas Aircraft Co., Inc. “Design Considerations of Reusable Launch Vehicles,” Final Reports to NASA Mission Analysis Division under Contract NAS2-3191 October 1966