The original airplane had a 60-gallon fuel system. In 1961, Piper offered an optional 90-gallon system, which gave the Comanche 180 seriously long legs: nine hours, provided it was only loaded with the pilot, one passenger and a little baggage. Range remains one of the Comanche's strong points and many have been fitted with even more fuel capacity in tip tanks and fuselage tanks to give it impressive endurance. In 1961, the gross weight of the 250 was boosted by 100 pounds. Electric flaps replaced the manual ones in 1962 models. Production of both the 180 and 250 ended after the 1964 model year. The 180, which obviously came second to its bigger brother in load carrying and was not selling as well as the 250, was dropped altogether while the 250 was upgraded to the 260.