Eurocopter X4 medium-twin helicopter will enter service in 2017.
A new artist rendering of the in-development Eurocopter X4 medium-twin helicopter was released today during a presentation made at the EASA Rotorcraft Symposium in Cologne. It shows design changes made since the X4 was introduced in 2011, including a horizontal empennage with a two-level lifting on the tail boom and an aft-fuselage “skirt,” the role of which is unknown.
