The two initial versions are the NH 90 NFH (NATO Frigate Helicopter) for the autonomous anti-submarine warfare and anti-ship roles, and the NH 90 TTH (Tactical Transport Helicopter) for assault transport, rescue, electronic warfare and VIP transport duties.

The NFH variants is being developed under Agusta leadership and its advanced mission suite includes a 360° search radar, dipping sonar, forward-looking infra-red, magnetic anomaly detector, and electronic surveillance measures and electronic counter measures systems.

The TTH variant is being developed under Eurocopter Deutschland leadership, with a cabin for 20 troops or one 2 000-kg vehicle. It can carry area-suppression and self-defense weapons. A forward-looking infra-red is standard on the TTH to provide a night and adverse-weather nap of the earth flight capability, and both models are controlled via a quadruplex fly-by-wire control system.

Two engine types are available to increase the NH 90's export potential. The first of five flying and one ground-test prototypes was the French-assembler PT 1 that first flew on 18 December 1995 with RTM 322 engines. The partner nations have now identified home requirements for 642 NH 90s, with 244 helicopters being delivered since March 2000.