A rare look at Vietnam’s Air Defence Technical Institute where various types of unmanned aerial vehicles are undergoing research for operational deployment.
![a2-1444874651_660x0[1]](http://alert5.com/wp-content/uploads/2015/10/a2-1444874651_660x01.jpg)
So far, five different types exist with the smallest at 4kg and the largest at 170kg.
Aviation News
A rare look at Vietnam’s Air Defence Technical Institute where various types of unmanned aerial vehicles are undergoing research for operational deployment.
So far, five different types exist with the smallest at 4kg and the largest at 170kg.