Sikorsky Russky Vityaz
sikorsky-russky-vityaz-1752891709768-ef1569
Description
The Sikorsky Russky Vityaz, or Russian Knight (S-21), previously known as the Bolshoi Baltisky (The Great Baltic) in its first four-engined version, was the first four-engine aircraft in the world, designed by Igor Sikorsky and built at the Russian Baltic Railroad Car Works in Saint Petersburg in early 1913.
ID: sikorsky-russky-vityaz-1752891709768-ef1569
