Probably https://en.wikipedia.org/wiki/BOR-4 https://en.wikipedia.org/wiki/BOR-4 which inspired https://en.wikipedia.org/wiki/HL-20_Personnel_Launch_System#Lift

Probably https://en.wikipedia.org/wiki/BOR-4 https://en.wikipedia.org/wiki/BOR-4 which inspired https://en.wikipedia.org/wiki/HL-20_Personnel_Launch_System#Lifting-body_development https://en.wikipedia.org/wiki/HL-20_Personnel_Launch_System#... which became https://en.wikipedia.org/wiki/Dream_Chaser#Program_history https://en.wikipedia.org/wiki/Dream_Chaser#Program_history and might fly in a few years!