For us Brits, back in the seventies and eighties we were lucky enough to be visited several times a year by Jo Koullen of Holland with his fantastic Pulse Jets.
http://www.youtube.com/watch?v=d_lf3NCmDx4
A few years ago, after putting this video on Youtube, I was contacted by Jo himself who had seen the video. I sent him some additional footage on a DVD. At that time, Jo was into restoring vintage British cars and still had all his aircraft moth-balled.
I'm just in the process of putting together a Turbine powered Skyrunner 300.
Tim.