(U) A. Mission Description and Budget Item Justification: This Applied Research program develops advanced hypersonic technologies and will provide revolutionary technology options to satisfy future Air Force needs such as future hypersonic weapons and space launch concepts. This effort captures applicable hypersonic technologies from the National Aero-Space Plane (NASP) program. This program will focus on hydrocarbon fueled hypersonic vehicle technologies and demonstrate their feasibility. Technologies developed under this program will be dual-use and applicable to both DoD and NASA requirements. Planned efforts include analyses, hypersonic materials/structures, airbreathing propulsion, hydrocarbon fuels, and integrated technology test demonstrations. Note: The FY 1997 decrease and increases in FY 1998 and out are due to adjustment of the program plan.

(U) FY 1996 ($ in Thousands):

(U) $8,697	Designed, developed, and tested propulsion components, structures, and integrated propulsion designs for advanced hypersonic propulsion concepts.
	(U) Investigated advanced fuel injection/flame holding technologies to optimize scramjet performance.
	(U) Completed preliminary evaluation and testing of candidate scramjet combustion concepts capable of demonstrating positive thrust at Mach 4-8.
	(U) Performed detailed design of selected scramjet engines (e.g., inlet, combustor, and nozzle) capable of demonstrating positive thrust at Mach 4-8.
	(U) Fabricated structures designed for integration into flowpath of selected engine designs.
	(U) Reverse engineered foreign scramjet hardware to determine foreign design methodology.
	(U) Studied endothermic fuel concepts to extend hydrocarbon-fueled scramjet capability from Mach 4-8 to Mach 10.
(U) $2,067	Designed, developed, and tested advanced high-temperature, high-strength materials and structures for hypersonic applications.
	(U) Continued characterization of high-temperature, lightweight materials and coatings for the internal sections of hypersonic propulsion engines.
	(U) Completed characterization of new lightweight, high-temperature structure concepts to support fabrication of flightweight engines.
(U) $727	Developed technologies for instrumentation and test in realistic hypersonic conditions.
	(U) Validated structural test methodology for high-temperature and lightweight hypersonic vehicle structures (e.g., fuselage sections).
	(U) Designed hypersonic test instrumentation that can withstand and accurately sense internal flow conditions (e.g., temperature, pressure, heat flux, etc.) without disturbing airflow or engine operating conditions.
(U) $699	Developed and extended analysis and computational technologies from low-speed and supersonic flight to the hypersonic environment.
	(U) Evaluated analytical tools available for aeromechanical, structural, propulsion, flight path dynamics, etc. to determine the necessary interactions for an integrated design methodology to create an affordable hypersonic design.
(U) $434	Conducted feasibility studies, design trades, and simulations to integrate hypersonic technologies into advanced vehicle designs for hypersonic applications which will improve warfighting capability and satisfy the requirements of Global Reach/Global Power.
	(U) Conducted mission analyses to characterize user requirements and technology maturity.
(U) $12,624	Total

(U) FY 1997 ($ in Thousands):

(U) $6,013	Design, develop, and test propulsion components, structures, and integrated propulsion designs for advanced hypersonic propulsion concepts.
	(U) Complete investigation of advanced injection/flameholding technologies to optimize scramjet performance.
	(U) Continue detailed design and fabrication of components for a scramjet engine (e.g., inlet, combustor, and nozzle) capable of demonstrating positive thrust at Mach 4-8 while withstanding the severe internal conditions.
	(U) Determine foreign scramjet hardware performance potential through detailed analysis and test, and evaluate potential suitability to U.S. scramjets.
	(U) Demonstrate endothermic fuel concepts to extend hydrocarbon-fueled scramjet capability from Mach 4-8 to Mach 10.
(U) $243	Design, develop, and test advanced high-temperature, high-strength materials and structures for hypersonic applications.
	(U) Perform detailed characterization and testing of selected high-temperature, lightweight materials for the internal sections of hypersonic propulsion engines.
(U) $267	Develop technologies for instrumentation and test in realistic hypersonic conditions.
	(U) Fabricate and experimentally verify hypersonic test instrumentation that can withstand and accurately sense internal flow conditions (e.g., temperature, pressure, heat flux, etc.) without disturbing airflow or engine operating conditions.
(U) $480	Develop and extend computational technologies from low-speed and supersonic flight to the hypersonic environment.
	(U) Develop initial concepts to extend interdisciplinary computational fluid dynamics and vehicle thermal management modeling for an integrated design methodology to create an affordable hypersonic design.
(U) $150	Conduct feasibility studies, design trades, and simulations to integrate hypersonic technologies into advanced vehicle designs for hypersonic applications which will improve warfighting capability and satisfy the requirements of Global Reach/Global Power.
	(U) Conduct mission analyses to characterize user requirements and technology maturity.
	(U) Conduct detailed missile designs to guide technology requirements definition and development.
(U) $7,153	Total

(U) FY 1998 ($ in Thousands):

(U) $7,827	Design, develop, and test propulsion components, structures, and integrated propulsion designs for advanced hypersonic propulsion concepts.
	(U) Continue detailed design and initiate fabrication of test components for a scramjet engine (e.g., inlet, combustor, and nozzle) capable of demonstrating positive thrust at Mach 4-8 while withstanding the severe internal conditions.
	(U) Complete reverse engineering and component/subscale testing of foreign scramjet hardware to determine foreign design methodology. Determine need for further testing at larger scale.
	(U) Complete demonstration of endothermic fuel concepts to increase performance and alleviate flowpath temperatures in Mach 4-8 engine.
(U) $498	Design, develop, and test advanced high-temperature, high-strength materials and structures for hypersonic applications.
	(U) Complete detailed characterization and testing of first set of down-selected high-temperature, lightweight materials for the internal sections of hypersonic propulsion engines.
(U) $300	Develop technologies for instrumentation and test in realistic hypersonic conditions.
	(U) Continue fabrication and testing of hypersonic test instrumentation that can withstand and accurately sense internal flow conditions (e.g., temperature, pressure, heat flux, etc.) without disturbing airflow or engine operating conditions.
(U) $765	Develop and extend computational technologies from low-speed and supersonic flight to the hypersonic environment.
	(U) Complete refinement of concepts to extend interdisciplinary computational fluid dynamics and vehicle thermal management modeling for an integrated design methodology to create an affordable hypersonic design. Initiate validation of computational methods in instrumented engine flowpath test rigs.
(U) $450	Conduct feasibility studies, design trades, and simulations to integrate hypersonic technologies into advanced vehicle designs for hypersonic applications that will improve warfighting capability and satisfy the requirements of Global Reach/Global Power.
	(U) Continue mission analyses to characterize user requirements and technology maturity.
	(U) Refine detailed missile designs to guide inter-disciplinary technology requirements definition and development for integrated hypersonic vehicles.
(U) $9,840	Total

(U) FY 1999 ($ in Thousands):

(U) $10,107	Design, develop, and test propulsion components, structures, and integrated propulsion designs for advanced hypersonic propulsion concepts.
	(U) Continue testing of scramjet engine components (e.g., inlet, combustor, and nozzle) capable of demonstrating positive thrust at Mach 4-8 while withstanding the severe internal conditions.
	(U) Initiate detailed design of freejet test engine and initiate fabrication of components.
	(U) Apply endothermic fuel concepts to specific designs of Mach 4-8 engines.
(U) $495	Design, develop, and test advanced high-temperature, high-strength materials and structures for hypersonic applications.
	(U) Initiate detailed characterization and testing of high-temperature, lightweight materials selected for the internal sections of specific engine configurations.
(U) $682	Develop technologies for instrumentation and test in realistic hypersonic conditions.
	(U) Apply hypersonic test instrumentation to specific freejet engine configurations and initiate establishment of test instrumentation protocol for freejet testing.
(U) $800	Develop and extend computational technologies from low-speed and supersonic flight to the hypersonic environment.
	(U) Continue validation of computational methods in instrumented engine flowpath test rigs.
(U) $900	Conduct feasibility studies, design trades, and simulations to integrate hypersonic technologies into advanced vehicle designs for hypersonic applications that will improve warfighting capability and satisfy the requirements of Global Reach/Global Power.
	(U) Continue mission analyses to characterize user requirements and technology maturity.
	(U) Update detailed missile design to guide inter-disciplinary technology requirements definition and development for integrated hypersonic vehicles.
(U) $12,984	Total

(U) B. Program Change Summary ($ in Thousands):

	FY 1996	FY 1997	FY 1998	FY 1999	Total Cost
(U) Previous President's Budget	18,448	7,471	18,477	16,685	Cont
(U) Appropriated Value	19,900	7,471
(U) Adjustments to Appropriated Value
a. Congressional/General Reductions	-693	-149
b. SBIR	-384	-162
c. Omnibus/Other Above Threshold Reprogrammings	-3,199	-7
d. Below Threshold Reprogrammings	-3,000
(U) Current Budget Submit/FY 1998 PB	12,624	7,153	9,840	12,984	Cont

(U) Change Summary Explanation:

Funding: Development of hypersonic technologies was previously conducted under the National Aero-Space Plane (NASP) program and the Hypersonic Systems Technology Program (HySTP). In FY 1995, the Air Force canceled HySTP and refocused efforts into a hypersonic technology initiative. This required a major restructure of the program requiring Congressional approval. Changes to this PE since the previous President's Budget are due to budget constraints and priorities within the Science and Technology (S&T) Program.

Technical: Not Applicable.

(U) C. Other Program Funding Summary:

(U) Related Activities:

(U) PE 0602102F, Materials.

(U) PE 0602201F, Flight Dynamics.

(U) PE 0602203F, Aerospace Propulsion

(U) PE 0603112F, Advanced Materials for Weapon Systems.

(U) This project has been coordinated through the Project Reliance process to harmonize efforts and eliminate duplication.

(U) D. Schedule Profile: Not Applicable.

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