of crashing. All 4 (each costed US $ 3 million) produced had crashed

(The 4 cost $17.9 million https://en.wikipedia.org/wiki/DRDO_Nishant#Specifications_.28DRDO_Nishant.29)

http://www.ndtv.com/india-news/nishant-unmanned-aerial-vehicle-of-indian-army-crashes-in-pokhran-1245328