Freewing Jas-39 Gripen introduction EN The JAS 39 Gripen’s unique delta wing and canard configuration enables it to achieve a highly maneuverable flight envelope, with a tighter turning radius than the American F-16! Flown by more than a dozen NATO countries, the Gripen is a Mach 2-capable multirole fighter whose 25 year service history continues onward with distinction. Freewing has raised the bar again for RC foam electric delta winged jets with the JAS 39 Gripen.