No. Winch glider launches (which are not a new thing) use a ground-based winch to give the glider an initial impulse, and the glider uses that to gain altitude and then glide for a much longer distance.
https://glidingschool.com/briefing-winch-launch/
Well then it's even simpler, carrying any worthwhile amount of cargo in a winch launched glider is not going to work.
Well then it's even simpler, carrying any worthwhile amount of cargo in a winch launched glider is not going to work.