On the V-22, the T406 engines are housed in wing-tip tilting nacelles, allowing the distinctive flight characteristics of the V-22. For takeoff and landing the nacelles are directed vertically (90° to fuselage), while for forward flight they are rotated parallel to fuselage. The engine has been considered as a cost-effective upgrade for existing heavylift helicopters such as the
CH-47 Chinook and the
CH-53. == Applications ==