On Wednesday, April 16, 2014 5:31:37 PM UTC-5, son_of_flubber wrote:
I have a question about the history of soaring... (I'm not asking a practical serious question.) Has anyone tried and/or had any luck with a 'slow burn single use' solid rocket in a glider? It would have the advantage of high energy density, low drag and quick start.

https://www.youtube.com/watch?v=vsqg28y_s3s

As for whether or not it is practical, ask the high altitude model rocket guys how much the spend on a "shot" for one of their rockets with not near enough propellant to launch a glider. Then go take a couple of tows and see which you would rather do. But it is an interesting thought.