The first flight of the world’s first four-engine airplane, The Russian Knight, affectionately called “Le Grand,” takes place in Russia. The aircraft is designed by Igor I. Sikorsky.
New approaches to testing Space Force equipment are speeding up delivery to operators, but the service needs more testers and perhaps its own space-focused test center, officials said April 1. Those are key pieces of the fledgling force’s testing methods and future moves that will keep new technology flowing into…
