Sikorsky chooses rotor blade de-icing avionics from Curtiss-Wright for S-76D medium-lift helicopter

CITY OF INDUSTRY, Calif., 19 July 2012. Helicopter designers at Sikorsky Aircraft Corp. in Stratford, Conn., needed ice-detection and -protection technology for the company's S-76D twin-engine medium-lift helicopter. They found their solution from the Curtiss-Wright Controls Avionics and Electronics segment in City of Industry, Calif.

Sikorsky awarded Curtiss-Wright a potential $12 million contract to supply Curtiss-Wright's ice detection and protection technology for the S-76D, which operators typically use for offshore oil, emergency medical services, executive transport, search & rescue, and airline applications.

Curtiss-Wright will provide Sikorsky with two separate helicopter avionics systems that work together to detect ice build-up and de-ice the helicopter's rotor blades as necessary.

The Curtiss-Wright Icing Severity Detection System (ISDS) will determine the rate of ice buildup on S-76D rotors. When required, the Rotor Ice Protection System (RIPS) activates the rotor blade heaters to de-ice the aircraft safely, Curtiss-Wright officials say. The initial value of the contract is $600,000. Sikorsky is a subsidiary of United Technologies Corp.

“Our advanced ice detection and blade de-icing systems enable the S-76D helicopter to fly in known icing conditions, significantly extending its utility and range,” says David Adams, co-chief operating officer of Curtiss-Wright Corp.

Curtiss-Wright engineers will build the ISDS equipment in Christchurch, England, and the RIPS equipment in City of Industry, Calif.

The S-76D helicopter can seat 12 to 13 passengers and has a gross-weight-lift capacity of 11,700 pounds. Powering the aircraft are two Turbomeca Arriel 2S2 turboshaft engines. The helicopter has a range of 411 nautical miles, can fly as fast as 155 knots, and can reach altitudes as high as 13,800 feet.

The S-76D cockpit avionics suite consists of the Thales TopDeck avionics system; four-axis fully coupled autopilot; enhanced ground proximity warning systems (EGPWS); traffic collision avoidance system (TCAS1); Honeywell Primus 660 weather radar; health usage monitoring system (HUMS); Thales digital map; and Rockwell Collins Pro Line 21 communications and navigation radios.

For more information contact Curtiss-Wright Controls Avionics and Electronics online at, or Sikorsky Aircraft at

Follow Avionics Intelligence news updates on Twitter, and join the revamped Avionics Intelligence group on Linkedin at

Easily post a comment below using your Linkedin, Twitter, Google or Facebook account.

Related Products

There is no current content available.

Related Companies

There is no current content available.

Most Popular Articles

Wire News provided by   


All Access Sponsors

Follow Us On...