In 1904, Ulyanin started research in remote control of aircraft, ships and land vehicles (in 1910 he patented a technology of remote control and in October 1915 a radio-controlled boat of his construction sailed from Kronstadt to Peterhof).

In early 1910, captain Sergey Ulyanin joins the brothers Vladimir and Alexander Lebedev to create PTA (St. Petersburg Aviation Partnership) which received a government contract to design a "foldable plane" that could be assembled within 2 hours.

It was based on Farman III but with a smaller wing area and a nacelle for the pilot and the observer.

Russian Foreign Son of a land owner in the village of Staraya Sitnya, Moscow Governorate Aleksey Ulyanin (1817—1879).

One of his siblings was Nikolay Ulyanin (1850—1907), Engineer Major general, chief of the Central Asian Railway, killed in a terrorist attack during the revolution of 1905-1907.