2. AEROSPACE 410 AEROSPACE PROPULSION Lecture (10/25/2002) RAMJET ANALYSIS IDEAL RAMJET AND ACTUAL RAMJET DESIGN Dr. Cengiz Camci

4. RAMJETS WITH SUBSONIC COMBUSTORS

8. Possible Ramjet configurations

9. IN ORDER FOR A RAMJET TO BE OPERATIONAL A FLIGHT SPEED OF AT LEAST SONIC VELOCITY IS REQUIRED Appr. 740 miles/hour

11. A MAJOR DRAWBACK OF A RAM JET IS ITS HIGH RATE FUEL CONSUMPTION A RAM JET UNIT CAN PRACTICALLY REACH MACH 5 (LOW HYPERSONIC) AERODYNAMIC FRICTION WILL MELT ANY RAMJET STRUCTURE DESIGNED FOR MACH=3-4

13. RAM JET SYSTEM DEVELOPED BY MARQUARDT AIRCRAFT COMPANY BO-MARC PROGRAM BOEING & UNIV. OF MICHIGAN AERONAUTICAL RESEARCH CENTER LONG RANGE INTERCEPTOR

14. EARLY BOMARC SUPERSONIC RAM JET MACH = 2.0 @ 48,000 Feet 48 inch ramjet FINAL FLIGHT MACH = 2.5 @ 42,000 feet 31 miles

16. Solid propellant Is cast into the special cavity In the core of the engine FUEL INJECTORS

17. VIEW FROM RAMJET EXHAUST NOZZLE (FROM OUTSIDE) SOLID PROPELLANT ROCKET ENGINE Throat of Supersonic nozzle

21. MACH = 3.95 @ 55,000 FEET MACH = 2.94 @ 95,000 FEET X-7 CONFIGURATION 2000 mph RAMJET

23. TAKE-OFF WITH A SOLID ROCKET BOOSTER RAMJETS START AT SONIC VELOCITY AT ABOUT 740 MILES/HOUR BO-MARC

24. FIRST MODERN CRUISE MISSILE

25. BRITISH RAM-JET DEVELOPMENTS RED- DUSTER SAM THOR SEA-DART

26. THOR RAMJET DEVELOPMENT

31. SEA-DART MACH = 3.5 design High altitude interceptor

32. SURFACE TO AIR RAM-JET MISSILE SRARM Solid rocket booster ODIN R&R ramjet

33. LAND DART SEA DART

34. RED-DUSTER