Long-endurance Pipistrels; hybrid certification advances; fuel cell propulsion testing; and 3D-printed hydrogen tank.

Marking a significant step on the long road to certification, Boeing’s 777-9 test fleet has expanded to include WH004.

Our roundup of the main aerospace and defense stories making the news this week.

General Atomics Aeronautical Systems Inc. (GA-ASI) is showcasing a new counter-uncrewed aircraft system (UAS) role for its MQ-1C Gray Eagle

Stratolaunch is shifting its focus to its 747 launch platform after successful repeat flights of the first autonomous, fully reusable hypersonic test aircraft.

A new bill supported by Boom aims to change U.S. legislation and permit supersonic over land flight above Mach 1, provided no sonic boom reaches ground.

Resupplying distributed forces in the face of adversary attacks on supply chains presents new challenges.

Roadable aircraft advances; U.S.-sourced drone batteries; oversize cargo for defense; and electric jet engine.