What Does FHF Stand For?

FHF stands for First Horizontal Flight

FHF, or First Horizontal Flight, refers to the initial flight of an aircraft conducted in a level, horizontal orientation after takeoff. This stage is crucial for evaluating the aircraft's stability, control, and performance characteristics in a flight environment that simulates cruising conditions. FHF is a key milestone in the testing and certification process for new aircraft designs, providing valuable data for engineers and pilots.