The Giant That Flew: Sikorsky's Ilya Muromets
Named for a folklore giant, this four-engine colossus carried a bedroom, a toilet, and sixteen passengers into the sky before it ever dropped a bomb.
In 1913, at the Russo-Baltic Carriage Factory in Saint Petersburg, a young engineer named Igor Sikorsky unveiled an aircraft unlike anything the world had seen. He called it the Ilya Muromets, after the towering hero of Russian folklore, and the name fit: this was the first multi-engine aircraft ever put into production, a machine built not for war but for luxury.
The original design was startling in its ambition. Passengers sat in wicker chairs inside an insulated cabin warmed by heat drawn from the engine exhaust pipes and lit by a wind-driven generator. There was a lounge, a private bedroom with a small table and cabinet, and — remarkably for 1913 — the first airborne toilet. Mechanics could even climb out through openings in the fuselage onto the lower wings to service the engines mid-flight.
On 11 February 1914, the second prototype took to the air carrying sixteen passengers, a record for the era. Just months later, from 30 June to 12 July 1914, Sikorsky's creation flew roughly 1,200 kilometers from Saint Petersburg to Kiev and back, with brief refueling stops in Orsha and Novosokolniki. The outbound leg took 14 hours and 38 minutes; the return, just 13. Sikorsky later called it proof of the value of large, multi-engine aircraft.
The flight brought him extraordinary recognition. Tsar Nicholas II awarded him the Order of St. Vladimir, Fourth Degree, exempted him from wartime conscription so he could keep designing, and promised a grant of 100,000 rubles from the State Duma. During a military review at Krasnoye Selo, the Tsar personally christened prototype No. 128 the 'Kievsky.' The army, impressed, ordered ten four-engine aircraft of the type.
But the outbreak of World War I redirected everything. Sikorsky redesigned his luxurious airliner into the 'Military Ilya Muromets, Type V' — the world's first purpose-built heavy bomber. Internal racks could carry up to 800 kilograms of bombs, and positions for as many as nine machine guns were fitted around the aircraft, including a pioneering tail gunner position introduced with the S-25 variant in March 1916. The engines themselves were shielded with 5mm armor plating.
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