When, on April 13, 2019, the Stratolaunch made its first flight, it became the largest flying aircraft in the world. Or, to be precise, the largest by measured wingspan. Depending on what you measure ‒ wingspan, nose-to-tail length, overall size, etc. ‒ the “largest aircraft in the world” throne is highly competitive one, and here is the list of aircraft with legitimate claim to it.