VTR Strap-On Computer

…Without this homemade electronic tutor, built from less than $100 worth of parts ordered from a catalog, Popa wouldn’t have been able to achieve this level of perfection. The device, called VTR, for Voodoo Trimbulind Robot, provides precise instructions on when to pull and release the control lines that will send the wing spinning, looping, stalling and flipping….

Strap-On Computer Will Do for Paragliding What Deep Blue Did for Chess