The ATR 72 is a twin-engine turboprop, short-haul regional airliner developed and produced in France and Italy by aircraft manufacturer ATR (French: Avions de transport régional or Italian: Aerei da Trasporto Regionale), a joint venture formed by French aerospace company Aérospatiale (now Airbus) and Italian aviation conglomerate Aeritalia (now Leonardo S.p.A.). The number 72 in its name is derived from the aircraft's typical standard seating capacity of 72 passengers.
The ATR for 3D printing has antennas, engine details, air intakes and separate wheels for easy painting. The model is separate to facilitate printing, assembly is easy and I recommend using decals or stickers to represent the doors and windows, so you will have a more smooth model and easy to finish.
This model is originally in 1/200 scale, but you can use any size you like, enjoy!