Paragraph Page Downloaded from https://www.everyspec.com TABLE OF CONTENTS (cont) CHAPTER 2 2-2 REACTION MOTOR PRINCIPLES 2-1 2-1 INTRODUCTION 2-1 INTERIOR BALLISTICS-THRUST PROPULSION SYSTEMS 2-3 THRUST 2-2 2-3.2 The General Equation for Total Thrust 2-3 2-4 SPECIFIC IMPULSE 2-3 2-3.1 The Equation for Momentum Thrust 2-2 2-5 ROCKET MOTOR THERMODYNAMICS 2-3 2-6 NOZZLE DESIGN 2-5 2-6.1 Summary of Reaction Motor Performance Criteria 2-9 2-6.2 Nozzle Configuration 2-9 2-6.3 Entrance and Exit Angles 2-9 2-6.4 Nozzle Angle Correction Factor 2-9 2-6.6 Exhaust Velocity 2-11 2-6.5 Overexpansion and Underexpansion 2-9 2-7 SOLID PROPELLANT ROCKETS 2-11 2-7.1 Grain Geometry 2-12 2-8.1 Mode of Burning 2-13 2-8 SPECIAL CHARACTERISTICS OF THE 2-8.3 Combustion Limit 2-14 2-8.2 Temperature Sensitivity and Limits 2-13 SOLID PROPELLANT ROCKET 2-13 2-8.4 Pressure Limit 2-15 2-8.5 Physical Changes in Storage 2-15 2-9.1 Pressure Feed System 2-17 2-9.2 Pump Feed System 2-18 2-9 LIQUID PROPELLANT ROCKETS 2-15 2-11 PROPELLANT UTILIZATION 2-19 2-10 SELECTION OF LIQUID PROPELLANTS 2-18 2-13 PULSE JETS 2-21 2-14 RAM JET 2-22 2-12 JET ENGINES 2-20 2-14.1 Subsonic Ram Jets 2-22 viii