Description
Vietnam War Bring-Back U.S. M141 Shrouded Tail-Fin Assembly — 81mm M362 / M362A1
Item Overview
This verified Vietnam War bring-back is a U.S. M141 shrouded tail-fin assembly from an 81mm mortar round. Used on M362 and M362A1 high-explosive cartridges, it combines a wartime connection with the distinctive ringed design of American mortar ammunition. Its surviving construction makes it an engaging piece for an ordnance collection.
Identification and Features
The assembly has radial stabilizing fins surrounded by a circular outer ring, known as the fin shroud. A perforated cartridge housing runs through the center.
Function
The fins stabilized the projectile in flight, helping keep its nose pointed along its path. The central cartridge housing contained the ignition cartridge and supported the propelling-charge assembly. This design combined flight stabilization and support for the ammunition’s propulsion components in one tail assembly.
Documented End-Item Application
Army technical manual TM 43-0001-28 identifies the M141 fin assembly as a component of both the M362 and M362A1 81mm high-explosive cartridges. Its ammunition data sheet lists the M1, M29, M29A1, and M252 mortars as applications for those cartridges. The assembly formed the tail section of the complete round.
Product History
Army data sheets record the M362A1’s standard classification in 1964. The M362 used a forged-steel projectile body, while the M362A1 used cast pearlitic malleable iron, a type of cast iron. Both models used the M141 tail assembly, so the detached tail alone does not distinguish which cartridge originally carried it.
Parent-Equipment History
The U.S. 81mm mortar family developed from the French Brandt design adopted for the M1 mortar. The M29 began replacing the M1 in 1952 as American infantry equipment evolved after World War II. The later M252 continued the medium-mortar role, entering U.S. service in 1987.
Weapon-System Background
These 81mm mortars were smoothbore, muzzle-loading weapons designed for high-angle fire. Their curved projectile paths allowed infantry to reach positions behind terrain or cover. High-explosive ammunition supplied blast and fragmentation, while smoke and illuminating rounds supported other battlefield tasks.
History of Use
During the Vietnam War, 81mm mortars supported infantry operations and the defense of field positions. Crews used different ammunition types to meet changing needs, from explosive fire support to screening and illumination. This example’s verified bring-back history connects it directly to that period. Its damaged forward end is consistent with recovery after detonation.
Condition
The forward end is badly torn and flared at the former projectile attachment point. The circular shroud, radial fins, and perforated central housing remain recognizable, allowing close study of the assembly’s layout. Please check the pictures for the general condition of the item.
Ideal For
This assembly suits Vietnam War collections, U.S. mortar ammunition displays, and museum exhibits about infantry support weapons. Its visible construction makes it useful for comparison with period technical diagrams. Collectors interested in verified wartime bring-backs will appreciate its service connection and distinctive relic condition.
Approx length 6.5", Approx width 3", Approx height 3", Approx weight 0.6lbs.
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