The Avions de Transport Regional - ATR 42 and 72 Cockpits

The ATR Family
Avions de Transport Regional (ATR) s a Franco-Italian regional aircraft manufacturer based in Blagnac, France.
The first aircraft designed by the consortium was the ATR 42 which first flew in 1984. The aircraft was a twin turbo-prop with a seating capacity of 42 passengers, hence the name. The firt airline to fly the aircraft was Air Littoral in 1985. Demand for an enlarged aircraft was such that the ATR72 with 72 seats was developed, this aircraft was delivered to Finnair in 1989.
Confusingly the ATR42-300 was the first model powered by two PW120 engines, the updated -320 powered by more powerful PW121 engines was introduced in 1990. The ATR72-100 was the first version of the ATR72. The cockpits of the ATR-300/320/500 and ATR72-100 are identical except for the fuel gauge as the ATR72 has greater fuel capacity.
The ATR72-200 and -500 series also had an identical flightdeck, the changes being to the fuselage and engine variations of the PW120 series engines.
The ATR42-600 and ATR72-600 are the upgraded versions of the aircraft introduced in 2007, they feature more powerful PW127M engines and a new glass cockpit with larger LCD displays, again the ATR42 and ATR72-600 cockpits are identical. The first aircraft flew in 2010.