The current standard shows some impracticalities in the definition of the design speeds. This gets directly apparent for aircraft when floats are added, as design speeds increase while the aircraft speed capabilities factually decrease. The reason for this is the specific selection of factors in the formula defining the design speeds. With this starting point, within this WK the design speed definitions shall be reviewed and refined for better suitability.
Keywordsfixed-wing aircraft; light sport airplane; Airworthiness; BHP (brake horse power); CAS (calibrated air speed); Controllability; Controllability and maneuverability; Design--aircraft materials/applications; Directional control; Drag coefficient (C