Sukhoi Super Jet (SSJ)
Russia's entry in the regional jet market has a very conventional appearance, with low wings, engines under the wings and horizontal stabiliser attached to the rear fuselage. Most typical is the nose, that has a similar shape as that of the Embraer ERJ170/190 family, but has six cockpit windows. Additionally, the vertical fin has no dorsal fin and is somewhat ahead of the tail cone and horizontal stabilisers. The Sukhoi Super Jet (SSJ) has for now no winglets and engines without a separate fan exhaust, so all in all it is still quite easy to recognise.
Super Jet 100 (RRJ-95/RRJ-95B)
From an external appearance viewpoint so far there has been only one subtype of the Sukhoi Super Jet, that is officially designated as Irkut RRJ-95. There are however slightly different versions with a different engine power, performance and/or weights. These are externally the same though.
Confusion possible with
The Sukhoi Super Jet 100 has a similar size as the Embraer 170/175, although the fuselage of the Embraer is narrower. However, the SSJ can easily be recognised by the engines with a single exhaust. Also the SSJ lacks a triangular dorsal fin, winglets and has six cockpit windows instead of four.
Formerly known as the Bombardier CSeries the Airbus A220 has the same basic configuration as the Sukhoi Super Jet, especially the shorter A220-100. The A220 has four cockpit windows, a flat tail cone, engines with separate fan exhausts and canted winglets as recognition points.
This aircraft is more similar in appearance to the Embraer 190/195 than the SSJ. Like the Embraer the Mitsubishi jet has four cockpit windows, winglets and engines with separate fan exhausts. (photo: Chiyoda I/WikiMedia)