Sikorsky introduces S-92A+ and S-92B helicopter models
ATLANTA, Ga.,- Sikorsky, a Lockheed Martin company, announced new plans for its S-92 helicopter line that will re-designate fielded helicopters as the S-92A+ after modification, and newly produced aircraft as the S-92B. The two variants will share a nearly identical configuration, with S-92B helicopters also featuring enlarged cabin windows and plans for a common cabin door suitable for offshore and SAR configurations. The announcement came at the 2019 Helicopter Association International Heli-Expo show.
These changes to the S-92 will introduce new technology that is focused on reliability and operating cost reduction, while delivering increased capability. Changes will increase commonality of the aircraft between the offshore, SAR, and utility configurations and allow for speedier reconfiguration between roles.
Sikorsky expects to launch an hourly aftermarket support program, reflecting a targeted economic improvement of the S-92A+ and S-92B, that will be available concurrent with deliveries.
Notably, both configurations will include the Phase IV main gearbox. This gearbox has been validated to exceed the requirements of CFR 29.927(c) as demonstrated by full-scale testing witnessed by the FAA. All of the primary lubrication system oil was removed prior to operating the gearbox for the equivalent of over 500 nautical miles of flight at an airspeed of 80 knots. No discernable anomalies were identified during the post-test examination.
General Electric's CT7-8A6 engine, capable of producing more power in higher altitudes and hotter temperatures, also will be available as an option for both the S-92A+ and S-92B products.
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