6 months agoWorld's 1st hydrogen-fueled internal combustion engine aircraft takes maiden flightRTVerified
8 months ago🛩️🇺🇸The new US B-21 Raider strategic bomber has made its maiden flight.Sarah Snyder Trusts The Plan
6 months agoWorld's most powerful solid fuel rocket Gravity-1 by China has completed its maiden flight todayVIDEOVARIETY