His is an original, USSR – Soviet – Russian – Military Air-force – High Altitude pressure suite BKK-15M 5-P. It is designed for long high-altitude flights. VKK (BKK) stands for “vuisotnui kompensiruyushtii kostyum”- altitude compensation suit. There are connecting hoses that are to be attached to connectors in the cockpit. There is no separate pressure […]