Several NATO member states are looking to commission the development of a new type of helicopter. This is intended to replace the current medium-lift helicopters in ten to fifteen years’ time. As part of one of the exploratory projects, led by the Italian company Leonardo, experts from NLR have conducted an in-depth analysis of the concept of a tiltrotor helicopter. The results of that research were presented this week at the Vertical Flight Society’s 82nd Annual Forum & Technology Display, a major trade conference in the United States.