Gradient Aspen
The Gradient Aspen is a Czech single-place, paraglider designed and produced by Gradient sro of Prague. Introduced in 2003, it remained in production in 2016 as the Aspen 5. Design and development. The Aspen was designed as an intermediate sport glider. The design has progressed through five generations of models, the Aspen, Aspen 2, 3, 4 and 5, each improving on the last. The models are each named for their approximate wing area in square metres.