Sikorsky VH-92 Sikorsky VH-92 The Sikorsky/Lockheed Martin VH-92 is an American helicopter under development to replace the United States Marine Corps' Marine One U.S. Presidential transport fleet. It is a military variant of the Sikorsky S-92. Sikorsky entered the VH-92 variant of the S-92 into the VXX competition for U.S. Presidential helicopter Marine One, but lost to the Lockheed Martin VH-71 Kestrel. However, the competition was restarted in 2010 due to ballooning VH-71 development costs, allowing Sikorsky to resubmit the VH-92 in April 2010. By mid-2013, all other aircraft makers had dropped out of the contest, leaving only Sikorsky. On 7 May
Sikorsky S-18 leave the ground. Sikorsky S-18 The Sikorsky S-18 was a Russian twin engine aircraft designed by Igor Sikorsky and built by the Russian Baltic Railroad Car Works aviation division at Petrograd during World War I. The S-18 was a large three bay biplane fighter/interceptor powered by two Sunbeam Crusader V-8 water-cooled engines mounted on the lower wing in a pusher configuration. The aircraft featured armor protection for both crew members with the gunner/observer seated in the nose and armed with a single machine gun. The aircraft was very heavy and with the less than reliable Sunbeam engines neither example built