6 ms·I guess it must be a stealth helicopter as wellby 6534278 3y agoI guess it must be a stealth helicopter as wellbell-cot 3y agoDucted tail rotors are used on some stealth helicopters...but no, it's not. Some basics: https://en.wikipedia.org/wiki/Stealth_helicopter https://en.wikipedia.org/wiki/Stealth_helicopter6534278 3y agoread the HN title! It was a joke