On the first generation of Airbus aircraft the characteristic cockpit windows were introduced, with the aft windows with the cut-off top corner. Furthermore the row of cabin windows on the rear fuselage appears to be curved up compared to the rest of windows. These are the main recognition points to distinguish the aircraft from the Boeing 767 and 777. To distinguish the A300/A310 from the A330 look at the winglets.
This aircraft is similar in size as the Boeing 737. Apart from more subtle differences the Airbus A320 a rather rounded nose, a small dorsal fin and small nose landing gear doors when the gear is extended.
This aircraft is clearly a derivative of the A300. Most characteristics of the A300/A310 also apply to the A330. The main differences are in the winglets and engine nacelles. Additionally the backward tilted main landing gear bogey is notable.
The Airbus A340 shares the fuselage with the Airbus A330, but has four engines instead of two engines. It could mainly be confused with the Ilyushin Il-96, which has different cockpit windows (nearly triangular last window) and taller winglets.
Compared to the Airbus A330 has a different style of cockpit windows in a re-contoured nose, an even smaller dorsal fin and winglets curling up from the wing tip. Note however that some versions of the A330 also have curved up winglets.
No other four engined jet has a double deck, so two rows of cabin windows, over the full length, so the Airbus A380 is easy to recognise.
This large military transport aircraft is quite easy to recognise, because there are no other four-engined turboprop aircraft with high wings and a T-tail. You are more likely to confuse it for a Boeing C-17!
Alenia Aermacchi M346 Master
Another training aircraft that is a look-a-like of the Kawasaki T-4 and the Alpha Jet. The M346 is a mid-wing aircraft, while the other two have high mounted wings. Also note the realitively large vertical stabiliser and the leading edge extensions of the wings along the fuselage.
AMX International AMX
Jointly developed in Italy and Brazil this single engined fighter has rectangular air intakes with rounded corners in the wing roots and the exhaust at the end of the fuselage. Als the single wheels on all landing gear legs are a recognition point, as well as the fixed aerial refueling probe on the nose.
Angel Aircraft 44 Angel
This piston twin has a conventional configuration, but the wing mounted engines drive pusher props. Also has a large entry door on the left and a large dorsal fin.