Russian engineers currently work on new helicopter systems for various purposes, Russian military officials say.
      
      Among new developments there will be jammers, airborne command posts, fuelling vehicles, reconnaissance helicopters for engineering and chemical troops, as well as search-and-rescue helicopters.
      
      Russian army air force consists of several thousand helicopters, which perform various types of missions. Military men soon expect massive injection of day-and-night and all-weather combat helicopters, Ka-52s, for instance.
      
      Source: Science & Technology