from the blog, /2017/09

from the blog, /2016/04

from the blog, /2012/07

from the illustrations, /HAL/Light__Combat__Helicopter-LCH

from the illustrations, /Erickson__air_crane/Aircrane-S_64-E

from the illustrations, /Airbus__Helicopters/Gazelle-SA342

from the blog, /2012/08