The final shape of the airfoils increased the airplane’s critical Mach number, the speed at which drag rises rapidly. “In other words,” Sikavi says, “we had the same amount of drag from ...

A team at MIT’s Lincoln Lab has developed a new propeller shape that significantly reduces the noise associated with drones. [PDF via NewAtlas] Inspired by some of the experiments with “ring ...

Shaped like an elongated egg with wings and a stubby propeller hanging ... people wondered how that strange airplane could go that fast.” The unconventional shape was the product of Otto ...

Michael Conley, head of Air Force Special Operations Command, announced the name of the OA-1K Skyraider II, a propeller-driven light attack airplane ... to help shape that platform into something ...