Method and apparatus for testing engines

• Main Authors: BAKOS ROBERT J, WOELFEL RALPH, TYLL JASON S, ENDOS JOHN I, MODROUKAS DEAN, GIRLEA FLORIN
• Format: Patent
• Language: English
• Published: 20.03.2003
• Edition: 7
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; AMMUNITION; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; JET-PROPULSION PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS; WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE ORCOMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR

A scramjet has a cowl, a center structure, and a plurality of wide pylons connecting the cowl to the center structure, with scramjet engines positioned between adjacent pylons. Leading surfaces of adjacent pylons converge to one another to provide side wall compression to air entering the engines. The center structure includes a fore body, a center body and an aft body that, with the pylons, define a basic structure either formed entirely from one piece or several securely connected pieces. A method of testing the scramjet projectile comprises using a gun to accelerate the scramjet projectile to the takeover velocity of the engines.