Identify by airplane characteristics

The tall vertical stabiliser with rounded top and the big rounded nose with four flat cockpit windows are the key features of this amphibian aircraft. Its cabin windows are wide, with curved left and right sides.

There is just one aircraft with such a non-circular pancake shaped radar on top of the fuselage. The E-1 is based on the S-2 Tracker, with which it shares many features like fuselage, wings, engines and gear. The tail is different however: the Tracer has an H-tail as a single fin would not provide sufficient stability.

The Tracker maritime patrol aircraft has quite characteristic cockpit windows, with flat front windows and the spherical side windows. The horizontal stabilisers have a significant dihedral. The single wheel main landing gear retracts in long engine nacelles, which end flat.

The Widgeon is about the same size as the Goose, so a mix-up is imaginable, especially considering that there are many engine modifications. Normally the G.44 has non-radial piston engines. The Widgeon has three cockpit windows of which the front one is curved. The cabin windows have long rectangle shapes.

The G280 is basically a Gulfstream G200 with a T-tail. Especially the short landing gear legs inherited from its predecessor make the G280 easy to recognise from other aircraft in this category, as do the many oval cabin windows.

All large cabin business jets designed and built first by Grumman and now by Gulfstream Aerospace have large oval cabin windows in landscape orientation. This is the main recognition point.

This single-engine jet was developed from the Gulfstream Peregrine 600 jet trainer and Hustler turboprop/jet executive aircraft. It retains from both aircraft the air intake on top of the fuselage, in front of the vertical stabiliser. Very typical are the winglets pointing down.

The design of this Indian basic jet trainer seems inspired by the Jet Provost. Both have a (nearly) straight vertical fin, side-by-side cockpit, long oval air intakes at the sides of the fuselage and an exhaust at the very end of the fuselage. (photo: Aeroprints/WikiMedia)

Like the more well known DHC-1 the HAL HT-2 has a multiframed bubble canopy, fixed main gear attached to the leading edge of the wings and a narrow engine typically associated with inline piston engines. The vertical tail is a low trapezium, of which the rear side with the rudder continues past the tailcone. The wing hardly taper. (photo: Alec Wilson/WikiMedia)

The nose shape of the HTT-40 and in particular the two exhausts at either lower side of it, remind much of the Shorts Tucano. The canopy has three frames and the highest point is at the second frame. The nose gear has two wheels and main gear single wheels that are placed at the inside of the legs. (photo: Government of India/WikiMedia)