Having the off-shore oil industry in mind Sikorsky developed this large helicopter, designated S-92 for the civil market and H-92 Superhawk for the military customers. The helicopter has a long fuselage with a blunt nose, while the end tapers to a point in the vertical plane, but stays wide as the forward part of the cabin. The narrower tail boom extends from just above the taper point. The S-92 has a swept vertical stabiliser with the four blade tail rotor on top, at the right side. The tail rotor is a bit canted. There is a single horizontal stabiliser on the right, also attached to the vertical stabiliser by a rodd. At both sides of the fuselage there are big sponsons holding the fuel and the two wheel main landing gear. The double wheel nose gear retracts forward in the nose. The four blade main rotor is powered by two turboshaft engines placed at the side of the gear box housing.
Other key features of the S-92 are the horizontal stabiliser connected to the vertical fin by a rodd, the canted tail rotorand the fuselage that tapers towards the rear, but stays as wide as the rest of the fuselage.
The different versions of the Sikorsky S-92 can externally be distinguish by
- the number of cabin windows
- the presence of bulges and antennas under the nose, and underneath/at the side of the fuselage
Confusion possible with
The biggest competitor to the S-92 is also the most similar looking helicopter. The AW101/EH101 has three engines though, smaller sponsons, a five blade main rotor and a tail rotor on the left side, to name a few eye-catching differences.
The older and bigger stablemate of the S-92 is also known for large sponsons, but is essentially different in other areas. The S-65 and H-53 variants have six or seven main rotor blades, two or three engines, tail rotor on the left and a high mounted horizontal stabiliser on the right.
This derivative of the S-61/Sea King has more in common with the S-92 than the original. It has a loading ramp at the rear of the fuselage, large sponsons and an all two wheel nose gear. The S-61R and CH-3/HH-3 variants have a five blade main rotor, a tail rotor on the left and a high mounted horizontal stabiliser on the right.
Russia's entry in this class of helicopters is the Mil Mi-38. You will immediately notice that this helicopter has no sponsons, a single wheel main landing gear and a six blade main rotor. Also, the angle between the four tail rotor blades is not equal.