From Scramble - The Aviation Magazine
The Mi-2 helicopter is a light, twin engine, single main rotor, multipurpose helicopter. Dual controls and co-pilot instrumentation are fitted as an option (for training purposes). The helicopter has an fully articulated three bladed, metal main rotor and two bladed metal tail rotor. All blades are fitted with an electrical de-icing system.
The Mi-2 helicopter is powered by two PZL-Rzeszów GTD-350W (designed by Isotov) turboshaft engines, each rated at 419 SHP (313 kW). Both engines have separate drive inputs to the main gearbox which reduces engine speed and drives the main and tail rotors, cooler fan and hydraulic, electrical and pneumatic (wheel braking) systems' accessories. Main rotor control forces are augmented by a hydraulic system. The non retractable tricycle landing gear incorporates the fully castoring nose gear and the main gear fitted out with brakes. One sliding door and two hanging doors provide easy entrance to and exit from the cabin.
Mil Mi-2 was originally designed in Russia during the early 1960s, resulting in a first flight in September 1961 (a total number of two Mil Mi-2 prototypes were made in Russia). In January 1964 an agreement between the USSR and Poland transferred development and production of PZL Mi-2 exclusively to WSK “PZL-Świdnik” factory and commenced in 1965. The Mi-2 evolved since that time and remained in low rate production into the 1990s. The main civil variant is simply designated Mi-2, PZL-Świdnik also developed a diverse number of military variants.
- Mi-2T – (T – Polish: “Transportowy” – Transport) – basic military transport / utility version.
- Mi-2Ch Chekla – (Ch comes from the name of the smoke generator) – version equipped with Chekla smoke generator .
- Mi-2D Przetacznik – (D – Polish: “Dowodzenia” – Command) – airborne Command Post with additional communication.
- Mi-2P – (P – Polish: “Pasażerski” – Passenger) – six-seat passenger version, more comfortable then Mi-2T
- Mi-2R – (R – Polish: “Ratownictwo” – Rescue) – ambulance / medical Evacuation version.
- Mi-2RL – (RL – Polish: “Ratownictwo Lądowe” – Land Rescue) – Search and Rescue version for land use.
- Mi-2RM – (RM – Polish: “Ratownictwo Morskie” – Naval Rescue) – Search and Rescue version for naval use with two-person electric winch over port side door and air-droppable dinghies.
- Mi-2RS Padalec – (RS – Polish: “Rozpoznanie Specjalne” - Special Reconnaissance) - special chemical and biological weapons reconnaissance version.
- Mi-2URN Żmija – (URN – Polish: “Uzbrojony w Rakiety Niekierowane” – Armed with Unguided Rockets) - combat support/armed reconnaissance version; armed with two Mars 2 launchers (each 16 S-5 57mm unguided rockets), fixed 23mm cannon and PKV gun sight in cockpit for aiming all weapons, in service from 1973.
- Mi-2URP Salamandra – (URP – Polish: “Uzbrojony w Rakiety Przeciwpancerne” – armed with Antitank Rockets) - anti-tank version with cabin side outriggers for four 9M14M Malyutka (AT-3 'Sagger') wire-guided missiles, additional missiles in cargo compartment, in service from 1976.
- Mi-2URP-G Gniewosz – similar to Mi-2URP but with additional Gad system (guiding system for two 9M32 Strela 2/SA-7 'Grail') anti-aircraft missiles.
- Mi-2 Platan – adaptation of Mi-2 equipped with Platan mine lying system.
All Military versions can be additionally armed with 2 PK/PKM machine guns mounted in windows.
Development of Mi-2 with two Rolls-Royce Allison 250-C20B turboshaft engines each rated at 426hp (313 kW) The helicopter has an fully articulated three bladed main rotor and two bladed tail rotor. All blades are of glassfiber-epoxy with an electrical de-icing system. Helicoper is equipped with western Honeywell and Garmin avionics. One sliding door and two hanging doors provide easy entrance to and exit from the cabin with volume 7,8m3 (8 passenger seats + 2 seats in pilot’s cabin) and capacity 1200kg (MTOW=3550kg), luggage is stored in a compartment aft of the cabin and accessible from inside the cabin (capacity of 0,4m3, 100kg). PZL-Kania helicopter can be operated in day and night, VFR and IFR and all weather conditions.
PZL Mi-2 plus
Upgrade of Mi-2 featuring: new more powerful PZL-Rzeszów GTD 350W2 engines each rated 429 SHP (319.9 kW), new all composite main rotor blades from PZL-Kania, modernised fuel system, Honeywell and Garmin avionics. PZL Mi-2 plus complies with OEI rate of climb requirements. Polish Air Ambulance Service Mi-2s were converted to this standard.