SOKOL KR ("FALCON") SPACESUIT, MANUFACTURED BY NPP ZVEZDA, CA 1973
A Sokol-KR (“Falcon”) Spacesuit, manufactured by NPP Zvezda, ca 1973
Full two-piece spacesuit, manufactured by NPP Zvezda, approx. 61 inches tall, top and bottom half joined by zipper completely circling waist. White outer restraint later of white nylon canvas, integral helmet with soft hood and polycarbonate visor locking with gold anodized aluminum flange, complete with leather and lambskin communications cap outfitted with two microphones and labeled N 498 and p 58 in stitching. Support sling running horizontally across chest to crotch using webbed belts and metal clips. Integrated pressure valve on chest reading "ОТВЕРНУТЬ ДО СРЕДНЕГО УПОРА ПЕРЕД ПОЛЕТОМ РДСП 3" [unscrew fully to medium before flight RDSP 3], Zvezda "САЮМ" [Salyut] patch to right of valve. Lacing detail under arms and at hips. Arms with trussed sleeves with adjustable articulating cables and webbed belt lashings, left arm with USSR State Emblem patch, right arm with USSR Flag Patch. Pressure gauge on left sleeve; detachable gloves, and glove liners. Legs with pleated knee attaching to suit with zippers, each leg with utility pocket and soled boots attaching with zippers. Gloves marked "ГП-7-111-0380110" and "ГП-7-111-0150384" at cuff.
VERY RARE SOKOL-KR ("FALCON") SPACESUIT, a version of the Sokol-K Rescue Spacesuit which was used on Soyuz 12, from 1973-1980. Zvezda made many refinements to the Sokol-K suit, and the Sokol-KR was a version that was designed to work with a regenerative life-support system on the TKS spacecraft. The suit was never flown, as the TKS never ended up flying a crew, though this suit was clearly used for training.
The Sokol space suit was, and still is, worn by all who fly on the Soyuz spacecraft. The suit was developed from 1973-1979 with the goal of supporting a suited astronaut for up to 30 hours in a pressurized cabin and two hours in an unpressurized one. Described by manufacturer NPP Zvezda as a rescue suit, the Sokol was designed to keep the wearer alive in the event of an accidental depressurization rather than being used outside the spacecraft on an EVA. The suit was developed following the disastrous loss of the Soyuz 11 crew in 1971 through sudden depressurization, and its successor, the Sokol-KV2, was first used on the Soyuz T-2 mission, launched on June 5, 1980.
For details on the development of Russian spacesuits, see Abramov and Skoog, Russian Spacesuits.