VKK-6MP-1 high-altitude compensation full pilot suit with GSh-6LP pressure helmet, serial 0380764, size 3M, with original 1988 factory passport and matching K-66 valve documentation. First developed in the early 1960s, the suit was principally associated with MiG-25 Foxbat and MiG-31 Foxhound interceptor crews.
There are less than 3,000 original Gsh-6 model helmets produced, making it a very rare helmet these days. The helmet is in new condition, although with some rubs on the clear visor. A smaller sun protective visor is located inside of the helmet and operated via a small knob on the right side of the helmet.
The VKK-6 is rated to 100,000 ft altitude and -50 to +50 degrees Celsius, and has been in long service with the Soviet Air Forces and has been used in the Russian Aerospace Force.
The 1970s saw the replacement of the VKK-4 helmet with the VKK-6. Major differences were replacements of just one zipper on one shoulder, abdominal bladder system as opposed to a hose, and changes to the chest size for enhanced comfort and ease of entry. Additionally, more zips and lace were added for a better fit.