Mil Mi-26 Halo
 

First flight on December 14, 1977, the replacement of the Mi-6 Hook , is the biggest operational Helicopter of the World. Can carry up to 90 troops, a similar capacity of a Lockheed C-130 Hercules and it was the first to operate successfully with an 8 blades main rotor .
Variants include:
Mi-26MS : Medevac version
Mi-26TM : Flying crane
Mi-26TZ : Fuel tanker