What height was Dahl told was not ideal for a flyer of aeroplanes?

In "Going Solo," Roald Dahl recounts his experiences as a fighter pilot during World War II, and one of the key discussions revolves around the physical requirements and preferences for pilots. The detail that stands out is the mention that a height of six feet and six inches was deemed not ideal for a flyer of aeroplanes. This information is tied to the practical considerations of fitting comfortably in the cockpit and being agile enough to handle the aircraft effectively.

While the other height options may represent heights one might find in various contexts, the specific reference to six feet and six inches highlights a particular concern regarding physicality and the demands of aviation during Dahl's time. The non-ideal nature of this height points to the need for pilots to be of a stature that allows for better maneuverability and operation within confined spaces.