Which of the following describes dissimilar lift?

Dissimilar lift refers to the phenomenon in which different sections of an aircraft's wing generate varying amounts of lift. This can occur due to differences in the wing's design, angles of attack, or flight conditions across its span. For example, if the angle of attack differs from the wing root to the wingtip, the sections can produce unequal lift, which can affect the aircraft's stability and control during flight. Understanding this concept is crucial for pilots and engineers as it impacts the performance characteristics of the aircraft, particularly during maneuvers that require precise control and coordination.

The other options describe concepts that are relevant to aviation but do not capture the essence of dissimilar lift. Tactical maneuvers pertain to strategic actions during flight, aircraft speed calculations involve airspeed indicators and performance charts, and landing gear configurations deal with the structural design of the aircraft's landing system, none of which directly relate to the differences in lift experienced by various sections of the wing.