ALLEGRA HD single-aisle flat-bed seat

ALLEGRA HD is Aviointeriors' single-aisle derivative of the Allegra platform, purpose-built for the growing segment of carriers operating lie-flat business class on narrowbody aircraft — a configuration that has emerged as structurally viable with the entry of A321XLR, Boeing 737 MAX, and existing A321neo operations on thinner long-haul routes. On a single-aisle cabin cross-section the challenge is maintaining meaningful bed width and passenger privacy within a fuselage that constrains total cabin width to approximately 140 inches. Allegra HD achieves this via a 2-1 alternating layout: the middle row deploys as a pair and the outer row as singles, giving each seat direct or near-direct aisle access without the herringbone angle-flat compromise. Seat widths are in the 20–23 inch range and flat-bed lengths reach 77–81 inches — comparable to wide-body staggered products of a decade ago. The seat shares the Allegra platform's electrical actuation architecture, IFE integration provisions, and personal storage design. The modular compartments, lumbar support and massage options, and the trim and finish customisation programme from the wide-body Allegra carry over to the HD, allowing airlines operating mixed wide-/narrow-body fleets to present a consistent business-class product across both aircraft families. For GCC procurement teams specifically evaluating narrowbody business class for point-to-point regional routes or thin long-haul operations, ALLEGRA HD is one of the few certified single-aisle flat-bed products with a documented product page from an established EASA-regulated Italian manufacturer with over 50 years of production history.