I have heard some of those stories and believe them.
http://en.wikipedia.org/wiki/Vimana
I know a brahmin...his family was commissioned by the gov...to translate the sanskrit......most of india is convinced the zorosters had them.....
https://images.search.yahoo.com/yhs/search;_ylt=A0LEV7vtZzVVIkAAwNUnnIlQ;_ylu=X3oDMTB0b2ZrZmU3BHNlYwNzYwRjb2xvA2JmMQR2dGlkA1lIUzAwMl8x?_adv_prop=image&fr=yhs-mozilla-003&va=chinese+aluminum+armor+tomb&hspart=mozilla&hsimp=yhs-003