Exploitation of small scale wind shear caused by buildings and other common obstructions with R/C gliders
In other words, dynamic
soaring of a model glider across the wind gradient caused by the
side of a building or other common obstruction, particularly those
which aren't really that useful for normal (front-side) slope lift.
Prior work I have links/references to:
Tim Harris has some excellent
information on his site, HandLaunchAerobatics.com.
I encourage you to spend several hours viewing the cool videos
they've shot and learning from his techniques.