Bell V-280 Valor tilt rotor prototype revealed during ground trials Saturday, 2 September 2017 Army, Asian, News, War data-lang="en"> Bell V-280 Valor #tiltrotor prototype revealed during ground trials https://t.co/8ujMtC4WHp #avgeek #Texas http://pic.twitter.com/QCb1DKyiaN — Aviation Analysis Wg (@avianalysiswing) September 2, 2017 Tweet Subscribe to receive free email updates: