What is the standard interval provided when launching a jet aircraft after a turboprop?

The standard interval of 60 seconds provided when launching a jet aircraft after a turboprop is based on the need for safe separation between different types of aircraft during takeoff. This interval helps to ensure that the jet, which typically has a much higher takeoff speed and climb rate, does not encounter any wake turbulence generated by the slower turboprop aircraft. This separation is crucial to maintaining safe airspace and preventing incidents caused by wake turbulence, which can pose a significant risk to smaller, slower-moving aircraft.

The 60-second interval strikes a balance between operational efficiency and safety, allowing air traffic control to maintain an orderly flow of departures while ensuring that there is enough time for the jet to clear any potential effects of the turboprop's wake. This practice is particularly important in busy airports where multiple types of aircraft are operating in close proximity.