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gerkletoss t1_j5ifcyc wrote on January 23, 2023 at 5:30 AM

Reply to comment by caspy7 in Seattle-based Jetoptera is developing a vertical takeoff aircraft that can travel at almost 1,000 km/h with a radically simplified new type of engine. With almost no moving parts, it uses super-compressed air to create vortexes for thrust. by lughnasadh

>and do I recall that helicopters do some slow rotator spin to make landings more survivable?

Aurorotation. The airflow through the rotor reverses and the spinning creates a ton of drag.