Mil Mi-4

Mil Mi-4
Pays	Union soviétique
Type	Hélicoptère de transport
Photographe	Andreï Zinchuk
Description	Album de 13 photos walk-around d’un « Mil Mi-4 »

Galerie de photos d’un Mil Mi-4, The Mil Mi-4 (USAF/DoD reporting name « Type 36 », nom de rapport de l’OTAN « traquer ») était un hélicoptère de transport soviétique qui a servi dans des rôles militaires et civils.

Source: Mil Mi-4 sur Wiki

Mi-4 01

Mi-4 02

Mi-4 03

Mi-4 04

Mi-4 05

Mi-4 06

Mi-4 07

Mi-4 08

Mi-4 09

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The Response to the West

Lla Mil Mi-4 (NATO reporting name: traquer) was the Soviet Union’s direct response to the American Sikorsky H-19 and H-34. Developed in a frantic one-year period following the display of US helicopter capabilities in the Korean War, the Mi-4 was significantly larger and more powerful than its Western contemporaries. It was the first Soviet helicopter capable of carrying a vehicle internally, marking the birth of Soviet air assault doctrine. Reliable and versatile, it became the ubiquitous face of Soviet rotary-wing aviation throughout the 1950s and 60s.

Attribute	Technical Specification (Mi-4P)
Rôle	Transport / Utility / ASW
Crew	3 (Two pilots and a flight engineer)
First Flight	May 1952
Groupe motopropulseur	1 × Shvetsov ASh-82V 14-cylinder radial engine
Horsepower	1,700 hp (1,268 kW)
Vitesse maximale	185 km/h (115 mph)
charge utile	1,600 kg (3,527 lb) or 16 fully equipped troops
Armament (Mi-4AV)	1 × 12.7mm machine gun in gondola; 4 × 57mm rocket pods

Design Engineering: The Powerhouse in the Nose

Clamshell Rear Doors: Unlike the side-loading Sikorsky H-34, the Mi-4 featured large rear clamshell doors. This allowed small vehicles like the GAZ-69 jeep or anti-tank guns to be driven directly into the hold, a layout that became a standard for almost all future Mil transport helicopters.
Nose-Mounted Radial: Similar to the H-34, the engine sat in the nose, but the Mi-4 used the massive ASh-82V radial (descended from the La-7 fighter engine). It was tilted to allow the drive shaft to pass between the pilots to the gearbox.
Lla « Navigator’s Gondola »: Military variants featured a distinctive glazed « baignoire » gondola under the fuselage for a navigator or observer. This provided excellent downward visibility for spotting targets or guiding landings in rough terrain.
Four-Bladed Rotor: The Mi-4 utilized a four-bladed main rotor, which provided greater lift and smoother flight characteristics than the three-bladed systems common at the time.

Global Reach and Versatility

Antarctic Exploration: The Mi-4 was a hero of Soviet polar research. Its rugged construction allowed it to operate in the extreme cold of Antarctica, moving supplies between research stations and ships.
Chinese Production (Harbin Z-5): China licensed the design as the Harbin Z-5. They produced hundreds of units and continued to use and upgrade the aircraft long after the Soviets had moved on to turbine engines.
The First Gunship: Lla Mi-4AV was the first Soviet helicopter to be heavily armed. It paved the way for the « flying tank » concept, carrying 96 unguided rockets and anti-tank missiles, a direct precursor to the Mi-24 Hind.
Civilian Service: As « Aeroflot’s » primary heavy lifter, it was used for everything from crop dusting and firefighting to « pigeon post » (air mail) in remote regions of the USSR.