What do wingspan and tail height indicate about an aircraft?

Wingspan and tail height are important dimensions that provide insights into an aircraft's physical characteristics and capabilities. Specifically, wingspan refers to the distance from tip to tip of the wings, and tail height is the vertical measurement from the base of the aircraft to the top of the tail.

These measurements play a crucial role in determining an aircraft's overall size and aerodynamic properties. A larger wingspan can enhance lift and stability, which can be indicative of the aircraft's capacity to carry weight and its design for certain types of flight operations. Similarly, tail height contributes to stability and control in flight and can also indicate the size of the aircraft.

In relation to the other options, maximum speed is generally influenced by engine power and aerodynamics rather than just wingspan or tail height alone. Fuel efficiency is tied more to engine performance, design, and operational practices rather than just physical dimensions. Passenger capacity relates more to the interior layout and design of the aircraft, which is influenced by but not solely determined by wingspan and tail height. Thus, understanding wingspan and tail height offers direct insights into the weight-bearing capacity and physical size of the aircraft.