Identify by airplane characteristics

This modern Russian DHC-2 look-a-like can have a radial piston or turboprop engine. The SM92 has three large cabin windows and a cruciform tail with strut braced horizontal stabilisers.

This light twin prop aircraft has high mounted wings with tall winglets as main characteristic. Additionally, it has a retractable gear, a high top edge of the front cockpit window and curved top of the fuselage, seen from the side from nose to tail. 

The P2012 is a ten seat aircraft with an all single wheel fixed gear, of which the main gear is attached to the fuselage. Typical are the cabin windows with 'race track' shape, so ovals with straight sides. The wing tips are slightly bent up. (photo by Marco Papa, used with permission)

Of all the cabin class piston twins the Aerostar is the easiest to recognise, because of the wings going straight through the fuselage. Another easy recognition point is the curved leading edge of the vertical stabiliser. The aircraft was first developed by Ted Smith and later taken over by Piper Aircraft, which continued production as the PA-60.

The TR-301 is a monowing conversion of the Antonov An-2 and only has high mounted, double braced wings. For the rest is looks the same as the An-2. The TR-301 can be equipped with a radial piston engine or a turboprop engine, as shown here. (photo: Anna Zvereva/WikiMedia) 

The configuration of the Scorpion with high mounted, straight wings and a double tail is already an easy recognition point. Furthermore the aircraft has air intakes under the wings (but clear of them) and a tandem cockpit/canopy.

Some features of this biplane are the wingtips with more rounding between the tip and the trailing edge than the tip and the leading edge. Also, the tail planes are highly swept. The S-5 was the floatplane version of the S-4 and is shown here; the S-4 has a tail wheel landing gear.

Key features of the Timm N2T are an open tandem cockpit, a non-covered piston radial engine in the nose and long thin fixed main landing gear legs. The fuselage only gradually tapers towards the rear. The aircraft has a large vertical stabiliser.

This is an example of the many homebuilt replicas of the Mustang, often not at full size, that have been built. Except for being clearly smaller, these replicas look a lot like the original, some types more that the other. The Titan T-51 has a sort of Spitfire canopy. (photo: James/WikiMedia)

This French/German transport aircraft can be regarded as a twin-engined Lockheed Hercules. Other characteristics are the nearly square vertical stabiliser, lack of cockpit windows at the crew's feet and four wheel main landing gears.