Field manual (FM) 3-04.240 is specifically prepared for aviators authorized to fly Army aircraft. This manual presents the fundamentals, procedures, and techniques for instrument flying and air navigation. FM 3-04.240 facilitates adherence to Army regulation (AR) 95-1 by providing guidance and procedures forstandard Army instrument flying. Aircraft flight instrumentation and mission objectives are varied, making instruction general for equipment and detailed for accomplishment of maneuvers. Guidance found in this manual is both technique and procedure oriented. Aircraft operator manuals provide the detailed instructionsrequired for particular aircraft instrumentation or characteristics. When used with related flight directives and publications, this publication provides adequate guidance for instrument flight under most circumstances but is not a substitute for sound judgment; circumstances may require modification of prescribed procedures. Aircrew members charged with the safe operation of United States Army, Army National Guard (ARNG), or United States Army Reserve (USAR) aircraft must be knowledgeable of the guidance contained in this field manual.