Technical Manual (TM 3-4240-264-34) for M51 Inflatable Shelter System
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Technical Manual (TM 3-4240-264-34) M51 CB Inflatable Shelter
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This Technical Manual TM 3-4240-264-34 covers the M51 Trailer-Transported Inflatable Chemical-Biological Collective Protection Shelter System and is dated December 1975. For collectors of U.S. Army technical manuals, Chemical Corps material, Cold War protective equipment, and military field-support literature, this is a strong period reference tied to a specialized and less commonly encountered Army collective-protection system.
Because this is a -34 technical manual, it belongs to the direct and general support maintenance side of Army documentation rather than simple operator use. Manuals in this category were intended to support more advanced servicing, inspection, repair, and maintenance functions than a basic field-use booklet. That gives this publication strong technical and workshop-oriented value for collectors, researchers, and restorers.
The M51 Trailer-Transported Inflatable CB Collective Protection Shelter System
The M51 belongs to the broader family of U.S. military collective protection and chemical-biological support equipment. As identified by its nomenclature, it was a trailer-transported inflatable shelter system designed for CB collective protection, placing it squarely in the support side of Army protective operations rather than in the category of conventional weapons or vehicles.
A shelter system of this type was intended to provide a protected enclosed space for personnel in environments where chemical or biological contamination was a concern. The fact that it was both inflatable and trailer transported makes it especially interesting from a historical standpoint, because it reflects the Army’s effort to create mobile, deployable protected environments rather than relying only on fixed shelters or permanent installations.
For collectors, that makes this manual especially appealing. It documents the technical side of Cold War protective systems rather than more commonly seen combat equipment, and it ties directly to one of the more unusual categories of Army field-support gear.
What This Manual Covers
As a direct and general support maintenance technical manual, TM 3-4240-264-34 would have been intended to support higher-level maintenance and technical service functions for the M51 shelter system.
In practical terms, a manual like this is especially relevant for:
- nomenclature and identification
- maintenance and servicing guidance
- inspection and adjustment procedures
- repair and troubleshooting reference
- direct and general support maintenance information
- archival and restoration research use
That makes it valuable not only as a collectible, but also as a practical reference for anyone studying how the Army maintained collective-protection shelter systems during the late Cold War period.
Historical Significance
The date December 1975 places this publication in the later Cold War period, when the U.S. military maintained extensive technical literature covering collective protection, chemical-biological defense, filtration, decontamination, and protected-environment support systems. Manuals like this reflect a period when Army documentation extended far beyond weapons and vehicles to include the equipment required to help units remain operational in hazardous conditions.
For collectors and historians, this manual is especially relevant to subjects such as:
- Cold War U.S. Army technical manuals
- collective protection shelter systems
- chemical-biological protective equipment
- inflatable military shelter systems
- dated military technical publications
Because it covers a specialized trailer-transported inflatable shelter rather than a more common vehicle or weapon system, it also adds variety to collections that already include standard ordnance or maintenance manuals.
About This Manual
This listing is for Technical Manual TM 3-4240-264-34 for the M51 Trailer-Transported Inflatable CB Collective Protection Shelter System, dated December 1975.
It is especially well suited for:
- U.S. Army technical manual collections
- Chemical Corps and protective-equipment displays
- Cold War military paper collections
- museum exhibits on military field-support systems
- archive and research libraries focused on U.S. military technical publications
Because manuals were working documents, surviving examples are valued not only for their content, but also for their connection to real military maintenance and support practice.
Why This Manual Matters
Many military manuals focus on weapons, vehicles, or combat systems. This one documents the support side of military readiness, specifically a mobile collective-protection shelter system intended for hazardous environments. That makes it especially useful for collectors who want to preserve the broader technical and logistical picture of Army Cold War preparedness rather than only front-line hardware.
For collectors, it is a solid stand-alone Cold War technical manual with a specialized subject focus. For researchers, it offers a useful reference point for Army collective-protection shelter documentation and maintenance practice. For museums, it helps explain the behind-the-scenes systems that supported operations in contaminated or threatened environments.
Ideal For
This manual is a strong fit for:
- U.S. Army technical manual collections
- Cold War Chemical Corps displays
- collective protection and shelter-system collections
- museum and archival reference libraries
- collectors of military paperwork and dated technical publications
Approx length 11", Approx width 8.5", Approx height .75", Approx weight 1.5lbs.
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