The intent of this product is to supplement FAA-H-8083-21, the Helicopter Flying Handbook (HFH). The Reality of Aeronautical Knowledge as it pertains to flight operation is simple; the pilot, aircrew, maintainer, operations, support personnel, and passengers all play a part in ensuring safe flight operations. When this is not done as set forth in aeronautical knowledge documentation, and previous training then risk elevates, aircraft are destroyed, and potential exists for people to die. This document will use this perspective to stimulate thought beyond the level in which pilots are currently trained.