The low level high speed flight arena has opened up as a very important one in the past several years. Weapon systems and tactics developments have forced the acquisition of pilot skills in low level, high speed flight. In order to remain undetected and complete his mission, the pilot is forced to fly below enemy radar. This carries with it the constant threat of contact with the ground, which is of course as lethal as enemy missiles. As a consequence of this necessity to fly low and fast, a thorough going training program has been under development for the past three years at the 162nd Fighter Weapons School, USAFR, Tucson, Arizona, in collaboration with the Human Resources Laboratory, Williams AFB, Arizona. The purpose of the present paper is to describe in some detail the visualperceptual aspects of low level, high speed flight as they are currently viewed by the developers of this program. The flighter simulator has already begun to play an important role in this training program, and this role will certainly expand with the fast developing simulator technology in conjunction with better understanding of the training requirements.