The NATO reporting name Helix suits the contra-rotating rotor arrangement and its powerful lift. The aircraft weighs about 6.5 tonnes empty and 11 tonnes with a normal load, with a maximum takeoff weight of 12 tonnes. The stated crew is one pilot plus two or three specialists, depending on the version, although more than one person aboard may be able to fly it. Maximum speed is about 270 kilometres per hour, cruising speed is about 205 kilometres per hour, and stated maximum range is near 980 kilometres. Radar, magnetic anomaly detectors, dipping sonar, and sonobuoys provide several ways to search for submarines. This range of equipment gives the heavy airframe considerable adaptability.
Notable Point · 12:09-15:30
Coaxial lift, weight, and ASW systems
Contra-rotating rotors, a heavy airframe, long range, and several ASW sensors define the Helix's operational role.