What is the airspeed velocity of an unladen swallow?
African or European swallow? 

The airspeed velocity of an unladen swallow is a reference to a quote from the 1975 film Monty Python and the Holy Grail. The actual airspeed velocity of a swallow varies depending on the species and other factors. According to one estimate, the airspeed velocity of a European swallow is roughly 11 meters per second.
European please.
According to a 2001 study by physicist and Monty Python fan Dr. Anders Sandberg, the airspeed velocity of an unladen European Swallow is approximately 11 meters per second or 24 miles per hour. However, this estimate assumes that the swallow is flying at low altitude and not carrying any significant weight or cargo (Such as a coconut). It is important to note that the actual airspeed velocity of a European swallow can vary depending on factors such as wind speed, air density, and flight patterns.