The Hipp's Superbirds J-3 Kitten and related designs are a family of single-engined, single seat, high wing conventional landing gear-equipped aircraft available in kit form or as plans from Hipp's Superbirds of Saluda, North Carolina.

[1][2][3][4] The J-3, J-4 and Reliant designs are intended to have empty weights under 254 lb (115 kg), and fit into the US ultralight category.

[4] The Hipp's J-3, J-5 and Reliant are all very similar aircraft developed from the original J-4, and differing only in fuselage design and wingspan.

"[1] The Reliant was first displayed at Oshkosh in 1987 where it received the Grand Champion and Charles Lindbergh awards.

[4] Data from Cliche, Kitplanes and Purdy[1][2][3][4]General characteristics Performance Avionics