https://www.aviationconsumer.com/aircraftreviews/piper-pa-28-235-236/
"The 235s second decade began with the 1973-74 Charger, a somewhat rare bird. It was still a PA-28, but with enough differences to be significant. For one thing, the constant-speed prop was made standard. The follow-on model, dubbed Pathfinder, was produced from 1975 to 1978. During the reign of these two models, several alterations were made, the most notable being a five-inch fuselage stretch coupled with a 100-pound boost in takeoff weight and a corresponding 59-pound increase in empty weight. There were other minor alterations, such as the provision of standard shoulder harnesses for the front seats and a stall horn to replace the stall light found in older Cherokees.
The final variant, the PA-28-236 Dakota, was introduced in 1979. This airplane boasted the new semi-tapered wing planform that had first turned up on the Warrior in 1975 and marked the emergence of the modern Piper line that still exists today. It was larger in a couple of critical dimensions, with another fuselage stretch of 7.5 inches and a wingspan increase of 3.4 feet."
"The 235s second decade began with the 1973-74 Charger, a somewhat rare bird. It was still a PA-28, but with enough differences to be significant. For one thing, the constant-speed prop was made standard. The follow-on model, dubbed Pathfinder, was produced from 1975 to 1978. During the reign of these two models, several alterations were made, the most notable being a five-inch fuselage stretch coupled with a 100-pound boost in takeoff weight and a corresponding 59-pound increase in empty weight. There were other minor alterations, such as the provision of standard shoulder harnesses for the front seats and a stall horn to replace the stall light found in older Cherokees.
The final variant, the PA-28-236 Dakota, was introduced in 1979. This airplane boasted the new semi-tapered wing planform that had first turned up on the Warrior in 1975 and marked the emergence of the modern Piper line that still exists today. It was larger in a couple of critical dimensions, with another fuselage stretch of 7.5 inches and a wingspan increase of 3.4 feet."
