It seems that drying cherry orchards is an activity that can really only be done by hovering a helicopter overhead.
Today’s invention uses the same idea, except that it’s applied to the important business of commercial marquees.
When you hire a big tent, a part of the cost has to cover the work involved in avoiding loading it into a truck whilst wet.
Today’s invention is therefore to use a large remote control helicopter to fly a number of programmed passes over any such rental tent, in order to dry it out before packing and transporting.
The UAV downdraft might be supplemented by having a small hot air balloon gas bottle and burner aboard so that the air flow could be heated.