2020 - Is This The World's Most Advanced Pilot Helmet? - Spark > .
The Brodie helmet, widely used during the first World War, had some serious design flaws. But thanks to those flaws we now have a staggeringly accurate map of the brain.
At the outbreak of WW1, none of the combatants were issued with any form of protection for the head other than cloth, felt, or leather headgear, designed at most to protect against saber cuts, that offered no protection from modern weapons.
Brodie's design resembled the medieval infantry kettle hat or chapel-de-fer, unlike the German Stahlhelm, which resembled the medieval sallet. The Brodie had a shallow circular crown with a wide brim around the edge, a leather liner and a leather chinstrap. The helmet's "soup bowl" shape was designed to protect the wearer's head and shoulders from shrapnel shell projectiles bursting from above the trenches. The design allowed the use of relatively thick steel that could be formed in a single pressing while maintaining the helmet's thickness. This made it more resistant to projectiles but it offered less protection to the lower head and neck than other helmets.
The original design (Type A) was made of mild steel with a brim 1.5–2 inches (38–51 mm) wide. The Type A was in production for just a few weeks before the specification was changed and the Type B was introduced in October 1915. The specification was altered at the suggestion of Sir Robert Hadfield to a harder steel with 12% manganese content, which became known as "Hadfield steel", which was virtually impervious to shrapnel hitting from above. Ballistically this increased protection for the wearer by 10 per cent. It could withstand a .45 caliber pistol bullet traveling at 600 feet (180 m) per second fired at a distance of 10 feet (3.0 m). It also had a narrower brim and a more domed crown.
Stahlhelm (plural Stahlhelme) is German for "steel helmet". The Imperial German Army began to replace the traditional boiled leather Pickelhaube (spiked combat helmet) with the Stahlhelm during World War I in 1916. The term Stahlhelm refers both to a generic steel helmet, and more specifically to the distinctive (and iconic) German design.
The Stahlhelm, with its distinctive "coal scuttle" shape, was instantly recognizable and became a common element of military propaganda on both sides, just like the Pickelhaube before it.
In early 1915, Dr. Friedrich Schwerd of the Technical Institute of Hanover had carried out a study of head wounds suffered during trench warfare and submitted a recommendation for steel helmets, shortly after which he was ordered to Berlin. Schwerd then undertook the task of designing and producing a suitable helmet, broadly based on the 15th-century sallet, which provided good protection for the head and neck.
After lengthy development work, which included testing a selection of German and Allied headgear, the first Stahlhelme were tested in November 1915 at the Kummersdorf Proving Ground and then field tested by the 1st Assault Battalion. Thirty thousand examples were ordered, but it was not approved for general issue until New Year of 1916, hence it is most usually referred to as the "Model 1916". In February 1916 it was distributed to troops at Verdun, following which the incidence of serious head injuries fell dramatically. The first German troops to use this helmet were the stormtroopers of the Sturm-Bataillon Nr. 5 (Rohr), which was commanded by captain Willy Rohr.
In contrast to the Hadfield steel used in the British Brodie helmet, the Germans used a harder martensitic silicon/nickel steel. As a result, and also due to the helmet's form, the Stahlhelm had to be formed in heated dies at a greater unit cost than the British helmet, which could be formed in one piece.
At the outbreak of WW1, none of the combatants were issued with any form of protection for the head other than cloth, felt, or leather headgear, designed at most to protect against saber cuts, that offered no protection from modern weapons.
When trench warfare began, the number of casualties on all sides suffering from severe head wounds (more often caused by shrapnel bullets or shell fragments than by gunfire) increased dramatically, since the head was typically the most exposed part of the body when in a trench.
The huge number of lethal head wounds that modern artillery weapons inflicted upon the French Army led them to introduce the first modern steel helmets in the summer of 1915. The first French helmets were bowl-shaped steel "skullcaps" worn under the cloth caps. These rudimentary helmets were soon replaced by the Model 1915 Adrian helmet (Casque Adrian), designed by August-Louis Adrian. The idea was later adopted by most other combatant nations.
The British and Commonwealth troops followed with the Brodie helmet (a development of which was also later worn by US forces) and the Germans with the Stahlhelm.
The Brodie helmet is a steel combat helmet designed and patented in London in 1915 by John Leopold Brodie. The term Brodie is often misused. It is correctly applied only to the original 1915 Brodie's Steel Helmet, War Office Pattern. A modified form of it became the Helmet, steel, Mark I in Britain and the M1917 Helmet in the U.S. Colloquially, it was called the shrapnel helmet, battle bowler, Tommy helmet, tin hat, and in the United States the doughboy helmet. It was also known as the dishpan hat, tin pan hat, washbasin, battle bowler (when worn by officers), and Kelly helmet. The German Army called it the Salatschüssel (salad bowl).
The original design (Type A) was made of mild steel with a brim 1.5–2 inches (38–51 mm) wide. The Type A was in production for just a few weeks before the specification was changed and the Type B was introduced in October 1915. The specification was altered at the suggestion of Sir Robert Hadfield to a harder steel with 12% manganese content, which became known as "Hadfield steel", which was virtually impervious to shrapnel hitting from above. Ballistically this increased protection for the wearer by 10 per cent. It could withstand a .45 caliber pistol bullet traveling at 600 feet (180 m) per second fired at a distance of 10 feet (3.0 m). It also had a narrower brim and a more domed crown.
As the German army behaved hesitantly in the development of an effective head protection, some units developed provisional helmets in 1915. Stationed in the rocky area of the Vosges the Army Detachment "Gaede" recorded significantly more head injuries caused by stone and shell splinters than did troops in other sectors of the front. The artillery workshop of the Army Detachment developed a helmet that consisted of a leather cap with a steel plate (6 mm thickness). The plate protected not only the forehead but also the eyes and nose.
The Stahlhelm, with its distinctive "coal scuttle" shape, was instantly recognizable and became a common element of military propaganda on both sides, just like the Pickelhaube before it.
After lengthy development work, which included testing a selection of German and Allied headgear, the first Stahlhelme were tested in November 1915 at the Kummersdorf Proving Ground and then field tested by the 1st Assault Battalion. Thirty thousand examples were ordered, but it was not approved for general issue until New Year of 1916, hence it is most usually referred to as the "Model 1916". In February 1916 it was distributed to troops at Verdun, following which the incidence of serious head injuries fell dramatically. The first German troops to use this helmet were the stormtroopers of the Sturm-Bataillon Nr. 5 (Rohr), which was commanded by captain Willy Rohr.
In contrast to the Hadfield steel used in the British Brodie helmet, the Germans used a harder martensitic silicon/nickel steel. As a result, and also due to the helmet's form, the Stahlhelm had to be formed in heated dies at a greater unit cost than the British helmet, which could be formed in one piece.
From 1936, the Mark I Brodie helmet was fitted with an improved liner and an elasticated (actually, sprung) webbing chin strap. This final variant served until late 1940, when it was superseded by the slightly modified Mk II, which served the British and Commonwealth forces throughout World War II. British paratroopers and airborne forces used the Helmet Steel Airborne Troop.
Several Commonwealth nations, such as Australia, New Zealand, Canada and South Africa, produced local versions of the MK II, which can be distinguished from those made in Britain.
During this period, the helmet was also used by the police, the fire brigade and ARP wardens in Britain. The helmets for the ARP wardens came in two principal variants, black with a white "W" for wardens and white with a black "W" for senior ranks (additional black stripes denoted seniority within the warden service); however numerous different patterns were used. A civilian pattern was also available for private purchase, known as the Zuckerman helmet, which was a little deeper but made from ordinary mild steel.
Several Commonwealth nations, such as Australia, New Zealand, Canada and South Africa, produced local versions of the MK II, which can be distinguished from those made in Britain.
During this period, the helmet was also used by the police, the fire brigade and ARP wardens in Britain. The helmets for the ARP wardens came in two principal variants, black with a white "W" for wardens and white with a black "W" for senior ranks (additional black stripes denoted seniority within the warden service); however numerous different patterns were used. A civilian pattern was also available for private purchase, known as the Zuckerman helmet, which was a little deeper but made from ordinary mild steel.
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.