Kay Kāvus (Persian: کیکاووس; Avestan: 𐬐𐬀𐬎𐬎𐬌 𐬎𐬯𐬀𐬥 Kauui Usan); sometimes Kai-Káús or Kai-Kaus,[1][2] is a mythological shah of Greater Iran and a character in the Shāhnāmeh.
Kāvus rules Iran for one hundred and fifty years during which he is frequently though increasingly grudgingly aided by the famous hero Rostam.
[3][4] According to the Shāhnāmeh, Kāvus had a flying craft made consisting of a throne to the corners of which were attached four long poles pointing upward.
Pieces of meat were attached at the top of each pole and the ravenous eagles were chained to the feet.
Rostam eventually had to rescue the king who, miraculously, survived the crash.