Sikorsky X2 Sikorsky X2 The Sikorsky X2 is an experimental high-speed compound helicopter with coaxial rotors developed by Sikorsky Aircraft. Sikorsky developed the X2 helicopter on a $50 million budget. The design includes expertise gathered from several earlier design projects. The S-69/XH-59A Advancing Blade Concept Demonstrator had shown that high speed was possible with a coaxial helicopter with auxiliary propulsion (two jet engines), but that vibration and fuel consumption was excessive; the Cypher UAV expanded the company's knowledge of the unique aspects of coaxial flight control laws with a fly-by-wire aircraft; and the RAH-66 Comanche developed expertise in composite rotors and advanced
Igor Sikorsky designed the first heavy bomber for Russia. In 2013, "Flying" magazine ranked Sikorsky number 12 on its list of the 51 Heroes of Aviation. On March 22, 2018 the Kiev city council officially renamed Kiev airport "International Airport "Kyiv" (Zhulyany) named after Igor Sikorsky". Sikorsky was a deeply religious Russian Orthodox Christian and authored two religious and philosophical books ("The Message of the Lord's Prayer" and "The Invisible Encounter"). Summarizing his beliefs, in the latter he wrote: Igor Sikorsky Igor Ivanovich Sikorsky (, "Ígor' Ivánovič Sikórskij"; May 25, 1889 – October 26, 1972), was a Russian-American aviation pioneer in both