A friend sent me this link to an interesting site: http://www.custerchannelwing.com/02_history.html

The design uses the prop airflow over the wing channels to produce static lift, enough to lift the aircraft off the ground vertically!

Have any RCU members ever built an operating model of this craft? It's intriguing, to say the least!

In the photo below, apparently it is taking off almost vertically.