Mil Mi-4 Hound

Developed in just 8 months, following an order from Stalin in Oct 1951 after evaluation of western helicopter operations in Korea, the Mi-4 Hound arrived in Apr 1952.

• Hound-A was a troop carrier for the Air Force
• Hound-B was an early Naval ASW model
• Hound-C was initially a close air support model
• Mi-4P was a passenger model introduced by Aeroflot in Nov 1958
• Mi-4L was a VIP transport
• Mi-4S was initially a crop sprayer but became better known in Forestry support.

the c/n numbers built with a serial number and a batch-number.
Example a Czechoslovak Mi-4 serial D-54 c/n 06 25
06 is the serial number (6th built in batch 25)
25 is the batch number.
Example a East German Interflug Mi-4 serial DM-SPX c/n 10 142
10 is the serial number (10th built in batch 142)
142 is the batch number.