The hybrid system provides protection for personnel in combat vehicles, vans, and shelters.
#Protective shelter 3 letters series
An example of MCPE application to weapon systems includes mounting on a wheeled or tracked vehicle, on the M292 expandable van, or on a series of vans linked together ( Figure 6-4). The system includes a variety of equipment, consisting of GPFUs, protective entrances, and various installation kits ( Figure 6-3). Modular CPE provides positive pressure NBC protection to a variety of vans and shelters.
![protective shelter 3 letters protective shelter 3 letters](https://i2.wp.com/www.activityshelter.com/wp-content/uploads/2016/08/letter-i-worksheets-insect.png)
For guidance on maintenance and parts of the SCPE see TM 3-4240-288-12&P. Entry and exit restrictions remain the same. A bib section is available that will fit between the protective entrance and the frame of any door, and when taped down, seals the entrance from outside contamination. Any cracks or holes will need to be sealed in the doorway. Places such as a bank vault or warehouse freezer are examples of where an M20 without liner can be placed. The M20 can be erected without the liner using only the protective entrance and blower compartment. It provides a contamination-free environment in which 10 soldiers can work, eat, or rest without the encumbrance of the IPE. Just as the M51, the SCPE can be used as a temporary rest and relief shelter (for example, as a break area for personnel working in heavy maintenance and supply operations) or as a command and control center. It is lightweight and mobile, and it allows unit commanders to convert existing structures into protected command, control, and operations centers. The SCPE provides a clean-air shelter for use against chemical and biological warfare agents and radioactive particles ( Figure 6-2). M20 Simplified Collective-Protection Equipment It can also be used as a temporary rest and relief shelter. The shelter is predominately used by battalion aid stations and other medical units. It features an overpressure and environmental control system. The M51 shelter is a trailer-mounted system ( Figure 6-1). Overpressure systems for fixed sites are discussed in detail in FM 3-4-1. This entrance is an air lock, and it prevents contamination from entering the enclosure. Personnel enter and exit through a protective entrance. The air pressure precludes leakage of contaminated air into the enclosure. The system does not protect against gamma radiation or neutrons. Gas and particulate filters remove any NBC contamination from the air. Overpressure SystemĪn overpressure system is an enclosure of pressurized purified air. In addition, it can provide warm air to facepieces in cold weather. It reduces breathing resistance through masks, and it aids in sweat evaporation. The filtered, pressurized air supplied to individuals extends the MOPP gear's capabilities. Except for the M13A I GPFU, the components of these systems are similar. The currently fielded systems are given in Table 6-3. The systems are assigned as GPFUS and are rated by their airflow capacity, in cubic feet per minute. Ventilated-facepiece systems supply filtered air to the protective mask canisters (both the M25A1 and M42 masks) of combat vehicle crew members and the M24 and M43 aircrew protective masks. See Table 6-2 for the advantages and disadvantages of each system. There are four basic types of CPE: vent ventilated-facepiece, overpressure, hybrid, and total systems ( Table 6-1). Used together, these systems enhance a unit's capability to perform its mission in an NBC environment.
![protective shelter 3 letters protective shelter 3 letters](https://wbhfradio.org/wp-content/uploads/2014/01/Shelter-letter.jpg)
This includes equipment such as the M51 shelter and the M20 SCPE.
![protective shelter 3 letters protective shelter 3 letters](https://backgroundimages.withfloats.com/actual/1ecf655b99e94965b8e1458c11bd63f4.jpg)
![protective shelter 3 letters protective shelter 3 letters](https://www.activityshelter.com/wp-content/uploads/2016/06/trace-the-letter-a-tracing.png)
CPE comes to a unit as either a component of a piece of equipment or as a TOE asset. Under NBC conditions, CPE allows soldiers to function effectively. Types of Collective ProtectionĬPE provides protection to a group of individuals under NBC conditions that permits relaxation of individual NBC protection. Understanding entry/exit procedures will greatly impact on the effective use of collective-protection systems. Collective protection can provide relief from MOPP4 for eating, rest, and hygiene. Collective protection does not replace MOPP gear it only allows the commander to reduce MOPP levels while in a contaminated environment. Commanders must examine and accurately plan for the additional manpower and logistics needed to operate in a collective-protection mode. Planning for collective protection should be an integral part of plans for the AirLand Battlefield. Collective-protection equipment (CPE) is integrated into some weapon systems to increase their effectiveness in an NBC environment. Collective protection is required to provide a safe environment for soldiers to carry out tactical functions, such as medical care, command, control, and communications, without being restricted by wearing NBC protective clothing.