13/10/2026
🏆 A team of six students, led by Prof. Dr. Marilena Pavel, has won 1st place in the undergraduate category of the 43rd Annual Student Design Competition of the Vertical Flight Society.
The competition challenged students to redesign the Bell XV-15 tiltrotor, originally developed as a prototype with NASA in 1977, into a hybrid-electric tiltrotor configuration for future Advanced Air Mobility (AAM) applications. The redesigned aircraft was required to address the demands of a 21st-century aircraft architecture, incorporating a new propulsion system, aerodynamic enhancements, improved structural efficiency, advanced flight-control systems, and increased operational flexibility.
The HEXV-15 Kestrel solution, designed by the team, proposed a novel wing–proprotor configuration featuring nacelle-mounted wing extensions and a comprehensive redesign of the XV-15’s proprotors, main wing and structural frame. These modifications were developed to accommodate the hybrid-electric propulsion architecture whilst accounting for the performance and integration requirements of future battery technologies.
Congratulations to Michael Boutros, Ruben van Duuren, Elias Gruters, Paris Limnidis, Rishi Nair and Mick P***k, and their supervisors Marilena Pavel, Ivan Komala and André Correia on this achievement👏
The winning design will be presented at the VFS Annual Forum & Technology Display in Phoenix, Arizona, in 2027.