this report presents the results of a project to define the functional elements required in an automated instructor model for landing signal officer (lso) training system. documentation review and interviews with subject-matter experts provided information to support the definition of instructor model functions within the context of a fully automated training system for lsos. this report, when combined with a companion volume entitled pilot behavior models for lso training systems becomes the functional definition of a landing signal officer training system (lsots). the present report identifies instructor functions to be automated in a lsots, including instruction, performance assessment, performance feedback, maintaining trainee records, and individualized curriculum control in addition, the report identifies the functional design characteristics of the training system executive, and the system interfaces with the trainee and the human instructor. the characteristics of a software model intended to accomplish the instructor model functions are presented. a lso knowledge (data) base was generated to represent the important variables in the lso's task during carrier aircraft recovery. a preliminary training syllabus was developed by sequencing the variables represented in the lso knowledge base