apparently there is a pretty good drag carrot there if you can make it work
I was thinking about this the other day, the Mirage fighter jet's delta wing whilst very efficient at high speed generates enormous drag at low speeds, should the donk(s) stop then it needs a ridiculous amount of speed (190Kts) to glide (at roughly 45 degrees nose down). There was even an old joke that developed which recommended that if the engine stopped then open the canopy, throw out a brick and follow it down.
But I'm sure the marketeers now running the design department will simply bolt a big emergency parachute to it, and the remaining engineer will devise a brick quick release system for guidance.