RQ4

RQ4 is a designation used in different domains to refer to distinct concepts. In scholarly research, RQ4 commonly denotes the fourth research question in a study's framework, following RQ1–RQ3. The wording of RQ4 is typically intended to address synthesis, implications, or overarching conclusions, and it can influence later stages of data analysis and interpretation.

In military terminology, RQ-4 refers to the Global Hawk, an unmanned aerial vehicle designed for high-altitude, long-endurance reconnaissance and surveillance. The platform operates remotely and carries sensor suites for imagery and signals intelligence. It first flew in the 1990s and entered service in the early 2000s, with multiple variants produced for the U.S. Air Force and allied customers.

Other uses of the string RQ4 may occur as a code, model number, or designation in various organizations and projects. The exact meaning is context-dependent and can only be determined by accompanying documentation or domain-specific references.