Aircraft Review : Sikorsky S-92 by DMO Flight Design   Routes : EGPH (Edinburgh) to EGPD (Aberdeen) - EGQL (RAF Leuchars) to USS Nimitz (aircraft carrier)           S-92 The Sikorsky S-92 is a four-bladed twin-engine medium-lift helicopter built by Sikorsky Aircraft for the civil and military helicopter market. The S-92 was developed from the Sikorsky S-70 helicopter and has similar parts such as flight control and rotor systems.