The X2 technology The S-97 Raider which Sikorsky displayed at its Development Flight Center in West Palm Beach, Florida, is the result of 20 years of development, started in 2005 with the X2 ...

Sikorsky Pushes X2 For NATO NextGen Rotorcraft Sikorsky has teamed with Leonardo to investigate its compound helicopter technology for NATO's Next Generation Rotorcraft Capability program.

The S-97 Raider is a high-speed scout and attack compound helicopter developed by Sikorsky Aircraft, featuring the innovative X2 Technology with a coaxial rotor system.

The V-280 Valor beat out a proposed joint Sikorsky-Boeing compound helicopter platform dubbed the SB-1 Defiant-X in 2019 for the Future Long-Range Assault Aircraft (FLRAA) program.

LE BOURGET—Airbus Helicopters has achieved its speed target with its Racer compound rotorcraft, successfully flying the experimental aircraft at 240 kt. (276 mph) in April.

Drones (2023). [2] Low-emission optimisation control method for coaxial compound helicopter/engine based on variable geometry adjustment. Aerospace Science and Technology (2024).