A-Model 72018 V-12 (Mi-12) Homer

The Mil Mi-12 (NATO code: Homer) was a prototype very heavy Soviet-made transport helicopter with a full-metal, half-shell structure, with a fixed undercarriage in a very rare transverse twin-rotor system. The drive was provided by four DA-25VF turbine engines with a capacity of 6500 KM each. In total, only two prototypes of this machine were created: the first was flew in 1968, and the second was presented at the Paris air show in 1971. Despite the unimaginable capacity for a helicopter (1969, the Mi-12 lifted a load of approx. 44,000 kg!), The Mi-12 turned out to be an extremely unsuccessful design. The main problem was the design itself, which created a lot of operational problems and caused huge vibrations of the helicopter. The main constructor (Mikhail Mil) used them mainly due to the lack of helicopter engines with a capacity of over 10,000 HP in the USSR in the 1960s. This led to the use of four engines, two in two in two nacelles. The failed Mi-12 never got past the prototype stage.