The patent application relates to the design of a ramjet engine whereby air injection ports and fuel injection systems are arranged in a manner to enhance flame stability.

This lecture series provided an introduction to modern ramjet technology. Applications to missiles were especially emphasized. The survey and characterization of various types of ramjets were followed by the discussion of ramjet components. Three of the lectures dealt with the main types of subsonic combustion ramjets. One lecture was devoted to supersonic combustion ramjets. Titles include: Ramjet Air Induction System Design for Tactical Missile Application; Aspects of Engine and Airframe Integration for Ramjet and Ramrocket Powered Missiles; Integral Boost, Heat Protection, Port Covers and Transition; Special Problems of Ramjet with Solid Fuel; and Solid Propellant Ramrockets.

This report describes the main accomplishments of a collaborative Canadian-Dutch project known as the Integral Rocket Ramjet Demonstration Program (IRRDP) to investigate the key technologies of air-breathing missile propulsion through the design, fabrication, & testing of a solid fuel ducted rocket engine with an integral booster for a medium-range air-launched missile. It begins by discussing the requirements for an integral rocket ramjet engine, then reviews activities related to the development of a missile design tool & performance prediction tool, computational fluid dynamics evaluation of the intake & port covers, development of a new solid propellant for a gas generator used in ducted rocket propulsion, modelling of the ramjet combustor in a water tunnel, combustion tests, modelling & propellant development for the nozzle-less booster, and the final design.

During the last decade, rapid growth of knowledge in the field of jet, rocket, nuclear, ion and electric propulsion has resulted in many advances useful to the student, engineer and scientist. The purpose for offering this course is to make available to them these recent advances in theory and design. Accordingly, this course is organized into seven parts: Part 1 Introduction; Part 2 Jet Propulsion; Part 3 Rocket Propulsion; Part 4 Nuclear Propulsion; Part 5 Electric and Ion Propulsion; Part 6 Theory on Combustion, Detonation and Fluid Injection; Part 7 Advanced Concepts and Mission Applications. It is written in such a way that it may easily be adopted by other universities as a textbook for a one semester senior or graduate course on the subject. In addition to the undersigned who served as the course instructor and wrote Chapter I, 2 and 3, guest lecturers included: DR. G. L. DUGGER who wrote Chapter 4 "Ram-jets and Air-Aug mented Rockets," DR. GEORGE P. SUTTON who wrote Chapter 5 "Rockets and Cooling Methods," DR . . MARTIN SUMMERFIELD who wrote Chapter 6 "Solid Propellant Rockets," DR. HOWARD S. SEIFERT who wrote Chapter 7 "Hybrid Rockets," DR. CHANDLER C. Ross who wrote Chapter 8 "Advanced Nuclear Rocket Design," MR. GEORGE H. McLAFFERTY who wrote Chapter 9 "Gaseous Nuclear Rockets," DR. S. G. FORBES who wrote Chapter 10 "Electric and Ion Propul sion," DR. R. H. BODEN who wrote Chapter 11 "Ion Propulsion," DR.

An analytical study of mode transition in the integral ramjet-rocket class of propulsion system was conducted. A baseline design was selected and used for analysis. The several factors affecting the engine aerothermodynamic performance during mode transition were evaluated. A quantitative evaluation method was established to aid in design of future engines of this class. Specific developmental recommendations are made. (Author).