The M1C helmet was a variant of the

U.S. Army The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, cl ...

's popular and iconic M1 helmet. Developed in

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...

to replace the earlier M2 helmet, it was not made available until issued to

paratrooper A paratrooper is a military parachutist—someone trained to parachute into a military operation, and usually functioning as part of an airborne force. Military parachutists (troops) and parachutes were first used on a large scale during Worl ...

s in January of 1945. It was different from the M2 in various ways, most importantly its bails (chinstrap hinges). The M2 had fixed,

spot weld A spot welder Spot welding (or resistance spot welding) is a type of electric resistance welding used to weld various sheet metal products, through a process in which contacting metal surface points are joined by the heat obtained from resistance ...

ed "D" bales so named for their shape, similar to early M1s. It was found that when sat on or dropped, these bails would snap off. The solution was the implementation of the swivel bail, which could move around and so was less susceptible to breaking. Like the M2, its most visible differences from the standard infantry M1 helmet was the liner. The liner of the M1C, like most paratrooper liners, had a set of "A yokes" or straps fixed to the side of the liner to enable the use of a four-point chinstrap with

leather Leather is a strong, flexible and durable material obtained from the tanning, or chemical treatment, of animal skins and hides to prevent decay. The most common leathers come from cattle, sheep, goats, equine animals, buffalo, pigs and hog ...

chin cup to give support to the head and neck and prevent adverse movement during

jump Jumping is a form of locomotion or movement in which an organism or non-living (e.g., robotic) mechanical system propels itself through the air along a ballistic trajectory. Jump or Jumping also may refer to: Places * Jump, Kentucky or Jump S ...

s. It used a simple but strong and reliable belt loop-type connection to secure the chinstrap to the a-yokes, which could be opened or closed from either side and thus partially removed without tools. This retention system was not significantly different to the M2's, and the normal infantry chinstrap could still be attached to the helmet shell if desired. Often, however, these modified liners could not be manufactured in time for jumps so they were modified by the soldiers themselves. Another difference of the M1C was the chinstraps (this was seen on the M2). The chinstraps found on the M2 and M1C both had a button snap on the end so as to be fastened to the liner. Despite the numerous differences between the M1C and the standard M1 helmet, the shell of the M1C is practically identical to standard swivel bail infantry helmets, making a concrete identification of a helmet as an M1C difficult. There's an argument to be made that the important part of an M1C is actually just a liner with the four-point chinstrap that can slip into any M1 helmet. The M1C would continue in US service after World War II, with a new split-fabric chinstrap introduced between the

Korean War , date = {{Ubl, 25 June 1950 – 27 July 1953 (''de facto'')({{Age in years, months, weeks and days, month1=6, day1=25, year1=1950, month2=7, day2=27, year2=1953), 25 June 1950 – present (''de jure'')({{Age in years, months, weeks a ...

and the

Vietnam War The Vietnam War (also known by other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vietnam a ...

not dissimilar to the one seen on the later

PASGT helmet Personnel Armor System for Ground Troops (PASGT, pronounced ) is a combat helmet and ballistic vest that was used by the United States Armed Forces, United States military from the early 1980s until the mid-2000s, when the helmet and vest were s ...

, but retaining the belt loop-style chinstrap connection. The M1C would remain in service until the adoption of PASGT, though the M1C would remain a fairly uncommon sight after Korea. They do turn up in various non-airborne units in Vietnam photography, however, suggesting that outside of jump-rated units they were treated like any other M1 and that they were perhaps more common than some thought.

References

{{DEFAULTSORT:M1c Helmet Combat helmets of the United States World War II military equipment of the United States Military equipment introduced from 1945 to 1949