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

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Presentation transcript:

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

RAMJETS WITH SUBSONIC COMBUSTORS

Possible Ramjet configurations

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

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

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

EARLY BOMARC SUPERSONIC RAM JET MACH = 48,000 Feet 48 inch ramjet FINAL FLIGHT MACH = 42,000 feet 31 miles

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

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

MACH = 55,000 FEET MACH = 95,000 FEET X-7 CONFIGURATION 2000 mph RAMJET

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

FIRST MODERN CRUISE MISSILE

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

THOR RAMJET DEVELOPMENT

SEA-DART MACH = 3.5 design High altitude interceptor

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

LAND DART SEA DART

RED-DUSTER