Ah yes! the curious
Tsybin RSR! Russia's effort to create an SR-71. Such a weird history and mostly such a weird concept that it just didn't work.
This is why Maxim's models are so great, he often picks out those utterly weird and strange contraptions from the Soviet period which are more or less neglected by the big model companies.
I love them.
Thanks so much, Maxim! You make good use of your spare time.