Since 2001, the 747SP test bed has played a crucial role in developing and refining more than 70 different experimental engines, logging over 1,400 ground runs and test flights.

World-leading aircraft engine designer RTX’s Pratt & Whitney is set to showcase a Boeing 747SP test bed aircraft at this year’s EAA AirVenture.

World-leading aircraft engine designer RTX’s Pratt & Whitney is set to showcase a Boeing 747SP test bed aircraft at this year’s EAA AirVenture convention as part of its centennial celebration.

Its four Pratt & Whitney JT9D-7R4W or Rolls-Royce RB211-524C2 turbofan engines gave it the 747SP a cruising speed of Mach 0.88, but it could fly as fast as Mach 0.92 with 46,500 pounds of force.

The condition affected engines built for the Airbus A320neo between 2015 and 2021. Working with airlines to inspect engines and correct the faults has cost Pratt several billion dollars so far.

World-leading aircraft engine designer RTX’s Pratt & Whitney is set to showcase a Boeing 747SP test bed aircraft at this year’s EAA AirVenture.

World-leading aircraft engine designer RTX’s Pratt & Whitney is set to showcase a Boeing 747SP test bed aircraft at this year’s EAA AirVenture convention as part of its centennial celebration.