I found this picture of an Mi-4 with a modification I have never seen on a rotorcraft before. Its designated Mi-4MK:
http://www.mi-helicopter.ru/eng/index.php?id=15
Any info would be great. ;D
Stingray
http://www.mi-helicopter.ru/eng/index.php?id=15
![43E9BA48.jpg](/proxy.php?image=http%3A%2F%2Fwww.mi-helicopter.ru%2Frus%2Fimg%2Fuser%2F43E9BA48.jpg&hash=a54c0532e84900472f670a7f94b2da01)
Any info would be great. ;D
Stingray