North American F-100A (52-5778) Super Sabre sitting on the Rogers dry lakebed, 1959. Pitch-up could be overcome by several ''fixes'', but the problems and cost outweighed the potential benefits. The obvious conclusion from NACA High-Speed Flight Station testing as to the desirability of the low horizontal tail surface led to that configuration's becoming standard on the first-generation supersonic sweptwing fighters such as the F-100 Super Sabre.