1. Hypersonic Flight With Rocket Power and Air Breathing Propulsion Presented to Iowa State University Aerospace Engineering Department October 17, 2013 Ames, Iowa Ming Tang President High Speed Technology Venture Williamsburg, VA

2. 1 Content  Hypersonic Domain  Rocket Power  Air Breathing  Air Breather Examples  Reusable Air Breather  Concluding Remarks

3. 2 Hydrogen Fuel Cryogenic storage o Larger volume o Easier ignition Hydrocarbon Fuel Easier to handle Smaller volume Harder to ignite 8000 6000 4000 2000 0 02468101214161820222426 Mach Number I sp Specific Impulse (seconds) Turbojets Ramjets Scramjets Turbojets Ramjets Scramjets Rockets ASALM X-43A Air-Breathing and Rocket Propulsion Options SUBSONIC SUPERSONICHYPERSONIC Air Breathing Propulsion Rocket Propulsion

4. 3 Content  Hypersonic Domain  Rocket Power  Air Breathing  Air Breather Examples  Reusable Air Breather  Concluding Remarks

5. 4 Rocket Propulsion Vehicles

6. 5 Boost Glide Space Shuttle Filename/RPS Number

7. 6 Falcon HTV-2 Filename/RPS Number SSME 3RS-25 Plus 2 Solid Rocket Boosters

8. 7 Advanced Hypersonic Weapon (AHW) Filename/RPS Number Strategic Target System (STARS)

9. 8 Content  Hypersonic Domain  Rocket Power  Air Breathing  Air Breather Examples  Reusable Air Breather  Concluding Remarks

10. 9 Blackswift Shuttle Ascent Descen t 450 400 350 300 250 200 150 100 50 0 0 2468101214161820222426 Air- Breathing Vehicle Corridor Attitude (kft) Flight Velocity (kft/sec) or Approx Mach Number Falcon HTV-3X is not NASP Blackswift NASP

11. 10 Aerospace Plane National Aerospace Plane (NASP) National Aerospace Initiative (NAI) ASALM Ramjet HRE X-24C NHRF HST ARRMD X-43A Hyper-X Scramjet FALCON Blackswift HyFly DCR X-43D HYFLITE-III X-43C RCCFD X-43B 19601970198019902000 Studies and Ground Tests Flight 2010 X-51 SED Calendar Year Hypersonic / Air Breathing Propulsion Programs

12. 11 Content  Hypersonic Domain  Rocket Power  Air Breathing  Air Breather Examples  Reusable Air Breather  Concluding Remarks

13. 12 A-7 Corsair ASALM  Integrated Rocket/Ramjet Propulsion –Solid fuel rocket casing when burned out –Served as combustion chamber for RAMJET  Seven Successful Flights –Mach 4.5 -5.5 –.300 miles range

14. 13 X-43-A

15. 14 X-51a

16. 15 Content  Hypersonic Domain  Rocket Power  Air Breathing  Air Breather Examples  Reusable Air Breather  Concluding Remarks

17. 16 Ramjet Scramjet Integrated Nozzle Integrated Inlet Turbojet Inlet Diverter Flap Hypersonic Cruise Vehicle Turbojet – Ramjet – Scramjet Propulsion

18. 17 Mode Transition from Turbojet to Ram / Scramjet (MoTr)  Program Goals and Objectives –Ground test an integrated Turbine Based Combined Cycle propulsion system using hydrocarbon fuel to validate the transition from turbojet to ramjet/scramjet in a hypersonic propulsion system  Technical Approach –Complete current FaCET and HiSTED testing –Design TBCC model leveraging DARPA investments in hypersonics: –HTV-3X: configuration –HiSTED: Mach 3.5+ turbine engine –FaCET: propulsion flowpath & ramjet/scram –Select test facility and modify to meet demonstration objectives –Complete TBCC mode transition test  Military Utility –Hypersonic systems offer the opportunity of a disruptive technology to support national security objectives including ISR, strike, and access to space –Successful completion of this ground test is critical to enabling unassisted, air-breathing hypersonic flight

19. 18 Content  Hypersonic Domain  Rocket Power  Air Breathing  Air Breather Examples  Reusable Air Breather  Concluding Remarks

20. 19 Analysis & Ground Test Flight Test – Air Launch – Rocket Boost Powered T/O, Flight, & Land Operational Capability TECHNOLOGY READINESS → UTILITY March Toward Hypersonic Capability