Identify by airplane characteristics

The Bücker Jungmeister is a radial piston powered biplane with slightly swept wings. Typical are the forward tilted main gears, top of the rear fuselage curving down and rounded trapezoid vertical stabiliser. 

The designers of the CA-15 seem to have been inspired by the P-51 Mustang, but they claim not. Anyway, both aircraft are quite similar. The CA-15 has the retractable tail gear further aft though, and the bubble canopy is rather small. (photo WikiMedia)

This trainer/light fighter has many look-a-likes. The tail has a medium size dorsal fin. The canopy has two bow frames and the wings a constant dihedral. The nose gear is quite close to the prop, but not as much as on the Tucano. (photo: Mztourist/WikiMedia)

This amphibian aircraft was specifically designed as a fire fighter, being able to scoop up water from lakes, rivers and seas. The fuselage cross section is nearly square, ending in a flat tail cone. The cruciform tail is also a trademark of the aircraft. 

For nearly four decades the Tutor was Canada's primary jet training aircraft. Characteristic for the aircraft are the side-by-side cockpit, small air intakes in the wing roots and a relatively small and low T-tail without dorsal fin.

The wings of this aircraft can be tilted 90 degrees, so that the propellers become rotors, providing lift. It also has a tail rotor. Other features are a three fin tail, of which the middle one is taller than the others. The two wheel gears are retrac­table.

This maritime patrol aircraft is based on the Bristol Britannia, visible in the tail and wings, but has a different fuselage including cockpit windows, bomb bays, chin-mounted radom, etc. Also the Argus has radial piston engines.

The Canadair Regional Jet series are essentially a stretched version of the Challenger 600 series. Later versions are more similar in appearance to the Global series, but have engine nacelles with a separate fan exhaust.

The nose of the Caproni Ca.20 has a streamlined shape, thanks to the covered rotating piston engine. As such, the engine cover acts as a biog propeller spinner. The wings are wire-braced, with the wires at the top being attached to a pyramid shape metal frame in front of the cockpit.

The CASA Aviojet has long, oval shaped air intakes in front of the wings. Also characteristic is the exhaust before the end of the fuselage, below the horizontal stabiliser.