David E. Powell
2020-01-05 21:41:01 UTC
I was just thinking, a few years ago, I saw a concept for a modern "Biplane" type arrangement for a twin jet passenger or cargo jet. The bottom airfoil pinched up, and I was thinking of the old Bellanca Aircruiser, and the unique wing arrangement that the Aircruiser had going on.
So, here's my take on the "Flying W" wing concept in the Jet Age: How about doing it with an "almost straight" wing, just as much sweep as you need for the speed you want, maybe even a "cranked" wing with a straighter inner section (The trailing edge straighter than the leading edge) with the two turbofans positioned to direct thrust into that center "gap" in each side's wings. This could be worked into almost a "channel wing" arrangement, with the thrust worked to provide a bit of additional lift.
This arrangement could lead to some great benefits for a short field operation profile, and while not a true "channel wing," could be a neat hybrid for the purposes of getting a bit of benefit from that lift while maintaining a more traditional layout and handling characteristics at higher speeds.
Of course, the arrangement could make for a convenient landing gear location, retracting into the lower "W Wing" points on each side, with a nose gear up front. (The trick would be designing the nose gear, I think!)