Laminar-flow business jet; hybrid-electric tiltwing; Solar Impulse 2 lost; and jet fuel from ethanol.

Vern Raburn’s attempt to mass-produce low-cost airplanes was a flop. Was Eclipse the forerunner to today’s air mobility ventures?

Broadening the scope of potential NGAP applications beyond the F-47 may boost the chances of a final breakthrough for variable-cycle engines after four decades.

Readers write about out-of-sequence U.S. military aircraft designations and NASA’s Artemis II mission. Plus: Behind the scenes at Unither.

Next-generation proprotor blade and advanced tiltrotor concept show promise.

An Aviation Week Intelligence Network performance analysis showed shifts at Miami International and Memphis International airports, but Hong Kong remains at the top.