english: This is a little bit earlier version of it, that's why it's given the X designation, but it's a four-passenger aircraft that could take off vertically, like a helicopter -- therefore it doesn't need an airfield.
non_english: Ovo je nešto ranija verzija, i zbog toga mu je data namena X, ali to je letelica za četiri putnika koja bi mogla uzleteti vertikalno, kao helikopter -- stoga ne treba aerodrom.