Mil Mi-6: Difference between revisions

Mil Mi-6 (view source)

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 The engineers of the Mil design bureau used two Soloviev D-25B turbines to power the giant main rotor. Each of those engines produces 4100kW takeoff and 3505kW nominal output. Their air intakes are equipped with electric de-icing.
 === Rotors ===
-To lift the 27 tons of helicopter plus up to 15 tons of cargo you don't just need strong engines but also an appropriate main and tail rotor. Appropriate in this case means that the 5-bladed main rotor has a diameter of 35m. That does of course produce a lot of torque. To counteract this torque the Russian engineers mounted a four-bladed tail rotor of 6.3m in diameter at the very far back of the helicopter in about 7m height.
+To lift the 27 tons of helicopter plus up to 15 tons of cargo you don't just need strong engines but also an appropriate main and tail rotor. Appropriate in this case means that the 5-bladed main rotor has a diameter of 35m and turns at about 120 rpm. The resulting circumferecial speed is about 220 m/s. That does of course produce a lot of torque which needs to be counteracted. Therefore the Russian engineers mounted a massive four-bladed tail rotor of 6.3m diameter at the very far end of the helicopter in about 7m height.
 Both rotors have electric de-icing equipment.