Aeritalia G222 & Alenia C-27J
This aircraft spans two generations, one from the early 1970s and the second since the late 2000s. It was originally conceived by the aircraft division of Fiat, soon to become part of Aeritalia. The aircraft was designated G222. The G222 was clearly meant as a medium sized military transport aircraft, having a rear loading ramp. The cockpit has quite some windows, both at the feet of the crew and above their heads. The tandem main landing gear retracts in streamline bodies underneath the fuselage.
The second generation is a completely modernised version, developed by Alenia in response to a USAF requirement. It has many features of the C-130J Hercules, but still looks as a version of the original G222.
How to recognise the different versions of the G222 and C-27J will be added later.
Confusion possible with
Both in terms of looks and potential customers the CN235 and C295 are the main competitor of the G222/C-27J. The CN235 and C295 have more cabin windows, no cockpit windows at the feet of the pilots and is generally looking more 'fat' than the G222.
Fairchild C-123 Provider
Also the Provider comes close in general appearance. It even has cockpit windows at the cockpit crew's feet. The few cabin windows are square though, there are no streamline bodies for the gear and the dorsal fin is much bigger. Finally it has radial piston engines, sometimes complemented by two jet engines under the wings.
The An-26 and An-32 are also military transport aircraft with a rear loading ramp. However, both have long main landing gear legs retracting in the engine nacelles.