The Jetstream has a relatively wide, short fuselage though, with a circular cross section, oval cabin windows, seven flat cockpit windows and a pointed nose. The main gear has single wheels and retracts inward in the wings, while the nose gear has two wheels.
The British Aerospace 146 is a four engined medium size jet airliner, of which most versions are passenger aircraft with cabin windows. That latter makes it stand out compared to similar sized transport aircraft. The BAe146 also have a two wheel main landing gear retracting sideways, and a speed brake in the tail cone.
In an attempt to modernize the Hawker-Siddeley 748 and capture a part of the booming commuter market British Aerospace basically stretched the HS748 and fitted the aicraft with modern turboprop engines, driving six-bladed propellers. The Advanced Turbo Prop (ATP) was born.
British Aerospace EAP
This was the development aircraft for the Eurofighter Typhoon. It is a bit smaller, has double delta wings, a less tall tail with curved dorsal fin and non-tilted air intakes. (photo: Hugh Llewelyn/WikiMedia)
Typical for the Hawk are the small, long D-shaped air intakes in front of the wing roots and the curved leading edge of the vertical stabiliser. Additionally it has horizontal stabilisers with significant anhedral.
The Jetstream 41 is the stretched version of the Jetstream 31, so the two aircraft have a large similarity. Apart from the length, the main differences are in the main landing gear, engine nacelles and ventral fin.
In general the Britten-Norman Islander can be easily recognised as it is a high-wing aircraft with engines underneath the wings and a fixed landing gear. The main gear is attached to the wings at the engine nacelles, meaning long struts.
Britten-Norman BN-2A MkIII Trislander
The Trislander is the three engined version of the BN-2 Islander. The third engine is located in the tail, making it easy to recognise. For the rest is looks like a larger Islander, including the long main landing gear legs attached to the wings.
This trainer/light fighter has many look-a-likes. The tail has only a small 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.