 Due to extensive modifications needed to accommodate the Curtiss engine, it quickly became the Mormon Meteor II and Jenkins broke land speed endurance records with it during 1936-37.In 1938, he debuted the Mormon Meteor III, setting even more records.The most notable was in 1940 when Jenkins managed 3,868 miles in 24 hours at an average speed of 161 mph, a record that stayed unchallenged until 2005.