[2] Several were used for record breaking endurance flights by female pilots during the early 1930s including one in which the aircraft stayed aloft for almost ten days.

[5] 116" track undercarriage is fitted with oleo-pneumatic shock obsorbers and Bendix brakes, and is braced to the front struts and lower longerons.

Fox" (named for their sponsor, a fur coat company and nicknamed the "Flying Boudoir" by the press) for 196 hours 5 minutes, refuelling in flight from a Curtiss Robin to set an endurance record near Valley Stream, New York.

[13] Helen Richey and Frances Marsalis flew production Thrush J NC7568 "Outdoor Girl" (named for a brand of women's cosmetics, a new sponsor) for 237 hours, 42 minutes (nearly ten days) from the 20th to the 30th of December 1933 over Miami, Florida.

Jean LaRene and Mary Elizabeth Owens made five attempts at the world's endurance record at the Curtiss-Reynolds Airport in August during the 1934 Chicago World's Fair in Curtiss Thrush J NR581N "Lone Star"[14] Jean LaRene made another attempt in NR581N on the record with Henrietta Sumner from 8 December to 30 November 1934 over Oklahoma City but experienced engine problems and was forced down after 198 hours and 13 minutes aloft.