A Methodology for the Design of Plant Analysers -- I. Introduction -- II. CEGB Operations -- III. Historical Development within the CEGB -- IV. Design and Provision of Training Simulators -- V. Requirements of Design Quality Assurance -- VI. Simulation Language PMSP -- VII. Conservation of Validated Plant Models -- VIII. Converged Modelling Philosophy -- Acknowledgements -- References -- Models and Simulation in Nuclear Power Station Design and Operation -- I. Introduction -- II. Physical Full-Scale Engineering Models -- III. Part-Scale Models -- IV. Full-Scale Static Control Room Mock-ups -- V. Full-Scale Control Room Mock-ups with Dynamic Displays -- VI. Full-Scope Training Simulators -- VII. Large Simulation Facilities for Design -- VIII. Nuclear Plant Analysers -- IX. Predictive Devices Used as Operator Aids -- X. Heysham II Power Station Fault Level Monitoring and Indication Equipment -- XI. CEGB Essential System Integrating Simulator -- XII. Equipment, Systems and Human Reliability -- XIII. Testing of Automatic Control Loops -- XIV. Computer Hardware Necessary -- XV. Conclusions -- Acknowledgements -- References -- Psychological Aspects of Simulator Design and Use -- I. Introduction -- II. Simulator Uses and Human Factors -- III. Simulators as Learning Environments -- IV. Alternative Approaches to Training -- V. Remaining Tasks for the Full-Scope Simulator -- VI. Conclusions -- References -- The Development of Full-Scope AGR Training Simulators within the CEGB -- I. Introduction -- II. User Requirement -- III. Functional Specification -- IV. Choice of Plant Model Complexity -- V. Choice of Display and Tutorial Facilities -- VI. Computer and Interface Hardware -- VII. Software Development Strategy -- VIII. Long Term Support -- IX. Quality Assurance -- X. AGR Simulator System Design -- XI. Conclusions -- Acknowledgements -- References -- Parallel Processing for Nuclear Safety Simulation -- I. Introduction -- II. Problem Definition and Solution Methodology -- III. Solution of Gas-Flow Equations -- IV. Application to RELAPV -- V. Conclusions -- Acknowledgement -- References -- Developments in Full-scope, Real-time Nuclear Plant Simulators -- I. Introduction -- II. Nuclear Submarine Simulators -- III. The Hunterston 'B' Simulator -- IV. The Torness AGR Simulator -- V. Simulator System Design Philosophy -- VI. Automatic Testing -- VII. Computer System Architecture -- VIII. Conclusion -- Acknowledgement -- Authors' Biography.