Eurocopter’s X3 hybrid aircraft reaches 180 kts
Dec 09, 2010
Eurocopter’s X3 high-speed hybrid helicopter demonstrator, which performed its maiden flight on September 6, 2010, has reached the program’s Step 1 speed objective: attaining a true airspeed of 180 kts in level flight at a reduced level of engine power.
Having already surpassed the speed of a traditional helicopter, the next milestone for the demonstrator is the Step 2 phase at Eurocopter’s headquarters in Marignane, France, where the X3 will enter a second set of flight tests during which it is expected to reach sustained cruise speeds in excess of 220 kts.
The X3 utilizes a Eurocopter Dauphin helicopter airframe. It is equipped with two turboshaft engines that power a five-blade main rotor system, along with two propellers installed on short- span fixed wings. This hybrid configuration creates an advanced transportation system that offers the speed of a turboprop-powered aircraft and the full hover flight capabilities of a helicopter. It is tailored to applications where operational costs, flight duration and mission success depend directly on the maximum cruising speed.
The X3 combines vertical takeoff and landing capabilities with fast cruise speeds of more than 220 kts. Eurocopter envisions a wide range of operations for this concept, including long-distance search and rescue (SAR) missions – benefiting from the hybrid aircraft’s combination of higher cruise speeds with excellent vertical takeoff/landing performance.