The carrying capacity record belonged to the French pilot Ducis, who had flown 800 m (2,600 ft) with a load of 600 kg (1,323 lb).
On hearing about the construction of the Russky Vityaz in early 1913, the experts and the media around the world were predicting a complete failure.
"[3] After the Russky Vityaz's first test flights between 10 and 27 May 1913 O.S., it was established that a passenger could even walk around the cabins without causing any problems to stability.
After the first test flight with his co-pilot and mechanic on board, Sikorsky noted, "in order to keep the engines close to the center line, they were mounted in two tandem groups on both sides of the fuselage.
In June 1913, the airplane was altered so that the two rear engines were remounted outboard on the leading edges, "...transforming the installation into a four-in-line.
[5] Sikorsky decided not to repair the seriously damaged Russky Vityaz and began working on his next brainchild — the Ilya Muromets.