Elytron 2S: The out-of-the-box tiltrotor concept
• http://www.gizmag.com, David SzondyA Elytron 2S (shown here in a proposed seven-seater version) is a tiltrotor aircraft that uses a Prandtl's box wing design.
A Elytron 2S (shown here in a proposed seven-seater version) is a tiltrotor aircraft that uses a Prandtl's box wing design.