The NHI NH90 is a medium sized, twin-engine, multi-role military helicopter manufactured by NHIndustries. The first prototype has it maiden flight in December 1995. The primary role of the NFH version is autonomous anti-submarine warfare (ASW) and anti-surface unit warfare (ASuW), mainly from naval ships. These aircraft are equipped for day and night, adverse weather and severe ship motion operations. Additional roles include anti-air warfare support, vertical replenishment (VERTREP), search & rescue (SAR) and troop transport.