Among these were two unconventional aircraft, the Model 281 Proteus and a Model 401 Sierra of Scaled Composites ... flown by a single pilot, powered by a single turbofan, and operating at ...

“The flight itself was smooth, which is exactly what you want the first flight to be,” said Evan Thomas, Scaled Composites test pilot. “And for the most part, the airplane flew as ...

Among these were two unconventional aircraft, the Model 281 Proteus and a Model 401 Sierra of Scaled Composites. "Proteus and the 401s ... flown by a single pilot, powered by a single turbofan, and ...