Identify by helicopter characteristics

The large Mi-26 is quite similar to its predecessor, the Mi-6, but has no wings. Also, the main gear is close to the fuselage and has double wheels.

With its rounded fuselage the Mi-34 looks a bit like the Hughes 369 family, including the engine being placed in the rear of the fuselage, in front of the tail boom. This tail boom extends from the middle of the fuselage though, not the top. The Mi-34 has a T-tail with a ventral fin.

This helicopter looks like an enlarged Mi-8, especially with a longer cabin. Like its predeseccor it a fixed, single wheel main landing gear and two wheel nose gear. The Mi-38 features a six blade main rotor. Typical is the unequal angle between the four tail rotor blades .

The Mi-6 is one of the largest helicopters ever built, and still powered by two turboshaft engines. A typical feature are the short wings, that give additional lift in forward flight. The main gear has large, single wheels and the nose gear two wheels.

One of the most common Soviet designed helicopters comes in many variants. All have a single wheel fixed main landing gear attached by struts to the rear fuselage, and engines on top of the fuselage, in front of the main rotor. The nose gear has two wheels. In most cases the fuselage is very rounded, especially the rear, which has clamshell doors or a loading ramp. The cabin windows are round. The tail rotor can be on the left or right side, depeding on the exact model.

NATO's standard medum size helicopter has a four blade main and tail rotor. The nose gear has two wheels, while the main gear has single wheels. It retracts in small sponsons. Typical is the side of the fuselage, with a sharp line separating the upper and lower half (like the 'bone line' of a car).

The Piasecki PV-14/PV-18, known in military service as H-25 and HUP, is one of the smallest tandem helicopters. The fuselage is highest at the front and tapers to the rear, where there is a large pylon that holds the engine. It has a fixed all single wheel tail wheel landing gear.

Flying Banana is the nickname of this tandem helicopter, and that is fitting. The H-21 leans back due to a long nose gear. The fixed main gear is attached to the lowest part of the fuselage. Finally, it has horizontal stabilisers with rectangular end plates as vertical stabilisers.

The name already says it: it is a smaller version of the Hughes 500. Indeed the basic shape is very similar, but the Mini 500 has a two blade main and two blade tail rotor. The cabin provides space for just the pilot.

This family of small helicopters has a two blade main rotor placed high above the fuselage, on a long trapezium shaped pylon covering the rotor axis. The engine is placed in the rear fuselage, below the slender tail boom. On the longer versions versions the engine is covered, on the short R22 not.