Sikorsky has selected GE Aviation (Booth No. 1217) to provide the GE YT706-GE-700R engines and engineering support for Sikorsky’s S-97 Raider program. The Raider is the military version of the experimental X2, a single-engine rotorcraft with coaxial counter-rotating main rotors and a pusher propeller. The Fadec-controlled GE engine offers 2,500 to 3,000 shp and is based on the GE700/CT7 family. GE said it developed the GE3000 for medium-lift applications and this engine could be incorporated into the Raider in the future.
Rotorcraft » Rotorcraft Engines
News and issues regarding all manner of civil and military rotorcraft powerplants.
Pratt & Whitney Canada (Booth No. 3317) is busy with developments on the PT6C-67E, which powers the Eurocopter EC175 medium twin, and the PW210 family, the powerplant for the Sikorsky S-76D and the AgustaWestland AW169 medium twins.
The PW210S (Sikorsky S-76D) and the PW210A (AgustaWestland AW169) have different certification schedules. The FAA certified the 1,077-shp PW210S last December after a postponement due to delays in the S-76D program.
Olivier Andriès, who has been the CEO of Turbomeca since June, predicts that helicopter engines will become fuel-electric hybrids around 2030. He also predicted that, in about 20 years, conventional turbine engine performance will be close to an asymptote. By that, he meant further improvement of turbine technology will be enormously difficult and expensive, if not impossible. So the next step will be hybridization, he said. “We will see integrated propulsion systems using thermodynamic and electric solutions,” he told AIN.
Oliver Andriès, From Ministries To Industry
Sikorsky Aircraft named 35 suppliers participating in an industry-funded effort to build two prototype S-97 Raider helicopters for evaluation by the U.S. military. The Raider is a follow-on to the company’s X2 technology demonstrator with coaxial contra-rotating main rotors and a pusher propeller.
Turbomeca plans to reduce the specific fuel consumption (SFC) of its turboshaft engines by 37 percent by 2030, and at the Helitech 2011 show discussed the strategies it is implementing to accomplish that change. While the company plans to make changes to the engine machinery, it expects much of the reduction to come from engine-airframe integration and new practices that make more efficient use of the engine.
As the Eurocopter EC145 T2 light twin helicopter has completed “hot and high” testing, the manufacturer has released “promising” performance estimates.
The Pratt & Whitney Canada PW210S, which will power the Sikorsky S-76D helicopter, received Canadian certification on October 14, P&WC announced yesterday. Test engines logged more than 8,700 hours in test cells and flight tests as part of the approval process.
Eurocopter expects that its recently tested helicopter hybrid power concept will enter commercial service, soon perhaps as early as next year.
Eurocopter is upgrading most of its product range, with the goal of providing improved performance and reduced costs. The manufacturer is reporting progress on the developments of the AS350B3e Ecureuil (AStar), EC135T2e/P2e, EC145T2, AS365N3e and Super Puma L1e/C1e. All were announced at Heli-Expo 2011 in February.