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Communications Carrier Assembly (CCA)
The Communications Carrier is a skull cap that interfaces with the Electrical Harness Assembly. It contains a microphone and earphones for voice communications. The skull cap is made of teflon and nylon/lycra fabrics.
Hard Upper Torso Assembly (HID
The Hard Upper Torso is a vest-like rigid fiberglass shell which incorporates provisions for Arm, LTA and Helmet attachment. A Water Line and Vent Tube Assembly is fastened to the shell interior and interfaces with he LCVG and the Life Support System (LSS). The main portion of the LSS, containing water and oxygen storage and circulation provisions, mounts on the back of the HUT, while the LSS controls mount on the front within easy reach of the astronaut.
Arm Assembly
The Arm interfaces with the HUT by a ring that retains the Arm Scye Bearing in the HUT opening. The upper and lower arm joints are separated by an arm bearing, which allows lower arm rotation, the lower arm also provides for sizing adjustments and for quick connect/disconnect of the glove via a wrist disconnect.
Maximum Absorbency Garment (MAG).
The Maximum Absorbency Garment is worn under the LCVG and provides for hygienic collection, storage, and eventual transfer of astronaut urine and feces discharged during extravehicular activities.
Helmet Assembly
The Helmet Assembly consists of a transparent Shell, Neck Ring, Vent Pad, Purge Valve, and an adjustable Valsalva device. The Helmet is secured to the HUT and provides an unobstructed field of vision. Optical clarity of the transparent shell is made possible by the use of rugged, impact resistant polycarbonate material. A vent assembly, bonded to the inside rear of the polycarbonate shell, serves to diffuse the incoming gas over the astronaut's face.
Lower Torso Assembly
Liquid Cooling & Ventilation Garment (LCVG)
Lower Torso Assembly
The Lower Torso Assembly consists of an integrated Body Seal Closure, Waist, Waist
Bearing, Leg, Thigh, Knee and Ankle joints, plus Boots. The LTA encloses the lower body and interfaces with the HUT via the body seal closure. The flexible waist section and waist bearing afford the astronaut a large degree of movement about the waist, e.g. bending and hip rotation.
Glove Assembly
The Glove is made up of a restraint and bladder encased in a TMG. The gloves protect the astronaut's wrists and hands and are attached to the arms at the wrist disconnects. The gloves incorporate a rotary bearing to allow wrist rotation, a wrist joint to provide flexion/extension, fabric joints for thumbs and fingers, plus a hot pad for protection of the hand from extreme hot and cold extravehicular conditions. The glove includes fingertip heaters that are controlled by the astronaut.
Extravebicular Visor Assembly (EVVA)
The Extravehicular Visor Assembly is a light-and-heat-attenuating shell which fits over the Helmet Assembly. It is designed to provide protection against micrometeoroid activity and accidental impact damage, plus protect the crewmember from solar radiation. A special coating gives the sun visor optical characteristics similar to those of a two-way mirror; it reflects solar heat and light, yet permits the astronaut to see. Adjustable eyeshades may be pulled down over the visor to provide further protection against sunlight and glare.
The liquid Cooling & Ventilation Garment is a close-fitting undergarment covering the body torso and limbs. It incorporates a network of fine tubing that is maintained in close contact with the astronaut's skin by an outer layer of stretchable open fabric. The space suit is so well insulated that normal body heat maintains warmth, except for occasional cold hands, even on the cold, dark side of the spacecraft. However, cooling is required, therefore, water is circulated through the LCVG tubing to remove excess body heat. Water flows through the various inlet and return tubes and must be uninterrupted in order for the garment to be effective. The LCVG also uses ventilation ducting to return vent flow from the body extremities to the EMU Life Support System (LSS).
Insuit Drink Bag (IDB)
- the bag.
The IDB is a sealed bag that comes in two sizes, holding 21 oz. and 32 oz. of potable (drinking) water. The bag is secured by velcro to the inside front of the HUT. Water is readily accessible to the astronaut through a mouthpiece located at the top of
Since 1947, ILC has been active in the development of products for both government and industry. Then as today, most A C products are comprised of softgoods materials - our primary area of expertise. Today, ILC's products fall into six primary groups:
Space Suits and Equipment Environmental Protection Products Individual and Collective Protection Equipment High Technology Inflatables Camouflage, Concealment, and Deception Human Engineered Composites
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