Original sentence: On hearing about the ongoing construction of the Russky Vityaz and its capabilities in the early spring of 1913, the experts and the media around the world were predicting its complete failure.Sikorsky conceived the Russky Vityaz in 1911, when no known aircraft could lift more than 600 kilograms.The Russky Vityaz was equipped with four engines, installed in tandem (it was designed as a two-engine plane).The Sikorsky Russky Vityaz ("Русский витязь" in Russian, or Russian Knight), also called Le Grand, was the first four-engine aircraft in the world, designed and built by Igor Sikorsky in Russia in the spring of 1913
Edited sentence: On hearing about the ongoing construction of the Russky Vityaz in the early spring of 1913, the experts and the media around the world were predicting its complete failure.Sikorsky conceived the S-21 design in 1911, when no known aircraft could lift more than 600 kilograms.The Russky Vityaz was equipped with four engines installed in tandem (it was designed as a two-engine plane).The Sikorsky Russky Vityaz, or Russian Knight (), also called Le Grand, was the first four-engine aircraft in the world, designed by Igor Sikorsky and built at the Russian Baltic Railroad Car Works (Russko-Baltiisky Vagonny Zaved or R-BVZ), in the spring of 1913