A helmet is a form of

protective gear Personal protective equipment (PPE) is protective clothing, helmets, goggles, or other garments or equipment designed to protect the wearer's body from injury or infection. The hazards addressed by protective equipment include physical, elec ...

worn to protect the

head A head is the part of an organism which usually includes the ears, brain, forehead, cheeks, chin, eyes, nose, and mouth, each of which aid in various sensory functions such as sight, hearing, smell, and taste. Some very simple animals may ...

. More specifically, a helmet complements the

skull The skull is a bone protective cavity for the brain. The skull is composed of four types of bone i.e., cranial bones, facial bones, ear ossicles and hyoid bone. However two parts are more prominent: the cranium and the mandible. In humans, the ...

in protecting the human

brain A brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It is located in the head, usually close to the sensory organs for senses such as vision. It is the most complex organ in a v ...

. Ceremonial or symbolic helmets (e.g., a policeman's helmet in the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...

) without protective function are sometimes worn. Soldiers wear

combat helmet A combat helmet or battle helmet is a type of helmet. It is a piece of personal armor designed specifically to protect the head during combat. Modern combat helmets are mainly designed to protect from shrapnel and fragments, offer some protec ...

s, often made from

Kevlar Kevlar (para-aramid) is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora. Developed by Stephanie Kwolek at DuPont in 1965, the high-strength material was first used commercially in the early 1970s a ...

or other lightweight

synthetic fiber Synthetic fibers or synthetic fibres (in British English; see spelling differences) are fibers made by humans through chemical synthesis, as opposed to natural fibers that are directly derived from living organisms, such as plants (like cotton) ...

s. The word ''helmet'' is derived from ''helm'', an

Old English Old English (, ), or Anglo-Saxon, is the earliest recorded form of the English language, spoken in England and southern and eastern Scotland in the early Middle Ages. It was brought to Great Britain by Anglo-Saxon settlement of Britain, Anglo ...

word for a protective head covering. Helmets are used for recreational activities and sports (e.g.,

jockey A jockey is someone who rides horses in horse racing or steeplechase racing, primarily as a profession. The word also applies to camel riders in camel racing. The word "jockey" originated from England and was used to describe the individual ...

s in

horse racing Horse racing is an equestrian performance sport, typically involving two or more horses ridden by jockeys (or sometimes driven without riders) over a set distance for competition. It is one of the most ancient of all sports, as its basic p ...

American football American football (referred to simply as football in the United States and Canada), also known as gridiron, is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense, the team with ...

ice hockey Ice hockey (or simply hockey) is a team sport played on ice skates, usually on an ice skating rink with lines and markings specific to the sport. It belongs to a family of sports called hockey. In ice hockey, two opposing teams use ice hock ...

cricket Cricket is a bat-and-ball game played between two teams of eleven players on a field at the centre of which is a pitch with a wicket at each end, each comprising two bails balanced on three stumps. The batting side scores runs by striki ...

baseball Baseball is a bat-and-ball sport played between two teams of nine players each, taking turns batting and fielding. The game occurs over the course of several plays, with each play generally beginning when a player on the fielding tea ...

camogie Camogie ( ; ga, camógaíocht ) is an Irish stick-and-ball team sport played by women. Camogie is played by 100,000 women in Ireland and worldwide, largely among Irish communities. A variant of the game of hurling (which is played by men onl ...

hurling Hurling ( ga, iománaíocht, ') is an outdoor team game of ancient Gaelic Irish origin, played by men. One of Ireland's native Gaelic games, it shares a number of features with Gaelic football, such as the field and goals, the number of p ...

and

rock climbing Rock climbing is a sport in which participants climb up, across, or down natural rock formations. The goal is to reach the summit of a formation or the endpoint of a usually pre-defined route without falling. Rock climbing is a physically and ...

); dangerous work activities such as

construction Construction is a general term meaning the art and science to form objects, systems, or organizations,"Construction" def. 1.a. 1.b. and 1.c. ''Oxford English Dictionary'' Second Edition on CD-ROM (v. 4.0) Oxford University Press 2009 and com ...

mining Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic via ...

riot police Riot police are police who are organized, deployed, trained or equipped to confront crowds, protests or riots. Riot police may be regular police who act in the role of riot police in particular situations or they may be separate units organize ...

military aviation Military aviation comprises military aircraft and other flying machines for the purposes of conducting or enabling aerial warfare, including national airlift ( air cargo) capacity to provide logistical supply to forces stationed in a war the ...

, and in transportation (e.g.

motorcycle helmet A motorcycle helmet is a type of helmet used by motorcycle riders. Motorcycle helmets contribute to motorcycle safety by protecting the rider's head in the event of an impact. They reduce the risk of head injury by 69% and the risk of death by 42%. ...

s and

bicycle helmet A bicycle helmet is a type of helmet designed to attenuate impacts to the head of a cyclist in falls while minimizing side effects such as interference with peripheral vision. There is ongoing scientific research into the degree of protection ...

s). Since the 1990s, most helmets are made from

resin In polymer chemistry and materials science, resin is a solid or highly viscous substance of plant or synthetic origin that is typically convertible into polymers. Resins are usually mixtures of organic compounds. This article focuses on natu ...

plastic Plastics are a wide range of synthetic or semi-synthetic materials that use polymers as a main ingredient. Their plasticity makes it possible for plastics to be moulded, extruded or pressed into solid objects of various shapes. This adaptab ...

, which may be reinforced with fibers such as

aramid Aramid fibers, short for aromatic polyamide, are a class of heat-resistant and strong synthetic fibers. They are used in aerospace and military applications, for ballistic-rated body armor fabric and ballistic composites, in marine cordage, ma ...

Designs

Some British

gamekeeper A gamekeeper (often abbreviated to keeper), or in case of those dealing with deer (deer-)stalker, is a person who manages an area of countryside (e.g. areas of woodland, moorland, waterway or farmland) to make sure there is enough game for shoo ...

s during the 18th and 19th centuries wore helmets made of

straw Straw is an agricultural byproduct consisting of the dry stalks of cereal plants after the grain and chaff have been removed. It makes up about half of the yield of cereal crops such as barley, oats, rice, rye and wheat. It has a number ...

bound together with cut

bramble A bramble is any rough, tangled, prickly shrub, usually in the genus ''Rubus'', which grows blackberries, raspberries, or dewberries. "Bramble" is also used to describe other prickly shrubs, such as roses (''Rosa'' species). The fruits inclu ...

. Europeans in the tropics often wore the pith helmet, developed in the mid-19th century and made of

pith Pith, or medulla, is a tissue in the stem Stem or STEM may refer to: Plant structures * Plant stem, a plant's aboveground axis, made of vascular tissue, off which leaves and flowers hang * Stipe (botany), a stalk to support some other ...

cork Cork or CORK may refer to: Materials * Cork (material), an impermeable buoyant plant product ** Cork (plug), a cylindrical or conical object used to seal a container ***Wine cork Places Ireland * Cork (city) ** Metropolitan Cork, also known as G ...

. Military applications in the 19th–20th centuries saw a number of

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 hogs, ...

helmets, particularly among aviators and

tank A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and good battlefield mobility provided by tracks and a powerful engin ...

crews in the early 20th century. In the early days of the

automobile A car or automobile is a motor vehicle with Wheel, wheels. Most definitions of ''cars'' say that they run primarily on roads, Car seat, seat one to eight people, have four wheels, and mainly transport private transport#Personal transport, pe ...

, some motorists also adopted this style of headgear, and early

football helmet The football helmet is a piece of protective equipment used mainly in gridiron football, although a structural variation has occasional use in Australian rules football. It consists of a hard plastic shell with thick padding on the inside, a f ...

s were also made of leather. 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 opposin ...

, American, Soviet, German, Italian and French flight crews wore leather helmets, the German pilots disguising theirs under a beret before disposing of both and switching to cloth caps. The era of the First and Second World Wars also saw a resurgence of metal military helmets, most notably the

Brodie helmet The Brodie helmet is a steel combat helmet designed and patented in London in 1915 by Latvian inventor John Leopold Brodie ( lv, Leopolds Janno Braude). A modified form of it became the Helmet, Steel, Mark I in Britain and the M1917 Helmet in ...

and the

Stahlhelm The ''Stahlhelm'' () is a German military steel combat helmet intended to provide protection against shrapnel and fragments of grenades. The term ''Stahlhelm'' refers both to a generic steel helmet and more specifically to the distinctive Ger ...

. Modern helmets have a much wider range of applications, including helmets adapted to the specific needs of many athletic pursuits and work environments, and these helmets very often incorporate plastics and other synthetic materials for their light weight and shock absorption capabilities. Some types of synthetic fibers used to make helmets in the 21st century include

fibers, such as

and

Twaron Twaron (a brand name of Teijin Aramid) is a para-aramid. It is a heat-resistant and strong synthetic fibre developed in the early 1970s by the Dutch company Akzo Nobel's division Enka BV, later Akzo Industrial Fibers. The research name of the para ...

. Race car helmets include a head and neck support system that keeps the helmet (and head) attached to the body in severe collisions.

Helmet types

Helmets of many different types have developed over time. Most early helmets had military uses, though some may have had more ceremonial than combat applications. Two important helmet types to develop in antiquity were the

Corinthian helmet The Corinthian helmet originated in ancient Greece and took its name from the city-state of Corinth. It was a helmet made of bronze which in its later styles covered the entire head and neck, with slits for the eyes and mouth. A large curved pro ...

and the Roman galea. During the

Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire a ...

, many different military helmets and some ceremonial helmets were developed, almost all being metal. Some of the more important medieval developments included the

great helm The great helm or heaume, also called pot helm, bucket helm and barrel helm, is a helmet of the High Middle Ages which arose in the late twelfth century in the context of the Crusades and remained in use until the fourteenth century. The barreled ...

, the

bascinet The bascinet – also bassinet, basinet, or bazineto – was a Medieval European open-faced combat helmet. It evolved from a type of iron or steel skullcap, but had a more pointed apex to the skull, and it extended downwards at the rear and ...

, the

frog-mouth helm The frog-mouth helm (or meaning "jousting helmet" in German) was a type of great helm, appearing from around 1400 and lasting into the first quarter of the 16th century. The helmet was primarily used by mounted knights for tournaments (jousting) ...

, and the

armet The armet is a type of combat helmet which was developed in the 15th century. It was extensively used in Italy, France, England, the Low Countries and Spain. It was distinguished by being the first helmet of its era to completely enclose the head ...

. The great seal of

Owain Glyndŵr Owain ap Gruffydd (), commonly known as Owain Glyndŵr or Glyn Dŵr (, anglicised as Owen Glendower), was a Welsh leader, soldier and military commander who led a 15 year long Welsh War of Independence with the aim of ending English rule in Wa ...

(c. 1359 – c. 1415) depicts the prince of

Wales Wales ( cy, Cymru ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by England to the Wales–England border, east, the Irish Sea to the north and west, the Celtic Sea to the south west and the ...

& his stallion wearing full

armour Armour (British English) or armor (American English; see spelling differences) is a covering used to protect an object, individual, or vehicle from physical injury or damage, especially direct contact weapons or projectiles during combat, or fr ...

, they both wear protective headgear with Owain's gold

dragon A dragon is a reptilian legendary creature that appears in the folklore of many cultures worldwide. Beliefs about dragons vary considerably through regions, but dragons in western cultures since the High Middle Ages have often been depicted as ...

mounted on top. This would have been impractical in battle, so therefore these would have been ceremonial. In the 19th century, more materials were incorporated, namely leather, felt and

. The

pith helmet The pith helmet, also known as the safari helmet, salacot, sola topee, sun helmet, topee, and topi) is a lightweight cloth-covered helmet made of sholapith. The pith helmet originates from the Spanish Empire, Spanish military adaptation of the na ...

and the leather

pickelhaube The ( pl. ; from german: Pickel, lit=point' or 'pickaxe, and , , a general word for "headgear"), also , is a spiked helmet that was worn in the 19th and 20th centuries by Prussian and German military officers, firefighters and police. Although ...

were important 19th century developments. The greatest expansion in the variety of forms and composition of helmets, however, took place in the 20th century, with the development of highly specialized helmets for a multitude of athletic and professional applications, as well as the advent of modern plastics. During

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

, the French army developed the

Adrian helmet The Adrian helmet (french: Casque Adrian) was an influential design of combat helmet originally produced for the French Army during World War I. Its original version, the M15, was the first standard helmet of the French Army and was designed whe ...

, the British developed the

, and the Germans produced the

Flight helmet A flight helmet, sometimes referred to as a "bone dome" or "foam dome", is a special type of helmet primarily worn by military aircrew. A flight helmet can provide:Aerospace International (magazine), March 2011, pages 26–29 * Impact protection ...

s were also developed throughout the 20th century. A multitude of athletic helmets, including

batting helmet A batting helmet is worn by batters in the game of baseball or softball. It is meant to protect the batter's head from errant pitches thrown by the pitcher. A batter who is " hit by pitch," due to an inadvertent wild pitch or by intent, may be ...

hockey helmet A hockey helmet is worn by players of ice hockey, inline hockey, and bandy Bandy is a winter sport and ball sport played by two teams wearing ice skates on a large ice surface (either indoors or outdoors) while using sticks to direct a ba ...

cricket helmet Helmets in cricket were developed in the 20th century. History There are recorded instances of cricketers using scarves and padded caps to protect themselves throughout cricket history. Patsy Hendren was one of the first to use a self-designed p ...

s and

racing helmet A racing helmet is a form of protective headgear worn by racing car and rally drivers. Motor racing has long been known to be an exceptionally risky sport:Lippi, G., Salvagno, G. L., Franchini M., and Guidi G. C.; “Changes in technical regulation ...

s, were also developed in the 20th century. Helmets since the mid-20th century have often incorporated lightweight plastics and other synthetic materials, and their use has become highly specialized. Some important recent developments include the French

SPECTRA helmet The SPECTRA helmet or CGF Gallet Combat Helmet is the PASGT-style ballistic helmet in use with the French military, and the armies of several other countries. Built by CGF Gallet (producer of the F1 helmet for firemen), it weighs , is available ...

, Spanish MARTE helmet or the American

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

(commonly called "Kevlar" by U.S. troops) and

Advanced Combat Helmet The Advanced Combat Helmet (ACH) is the United States Army's current combat helmet, used since the early 2000s. It was developed by the United States Army Soldier Systems Center, the U.S. Army Special Operations Command, and the U.S. Army Researc ...

, or ACH.

Heraldry

As the

coat of arms A coat of arms is a heraldry, heraldic communication design, visual design on an escutcheon (heraldry), escutcheon (i.e., shield), surcoat, or tabard (the latter two being outer garments). The coat of arms on an escutcheon forms the central ele ...

was originally designed to distinguish

noble A noble is a member of the nobility. Noble may also refer to: Places Antarctica * Noble Glacier, King George Island * Noble Nunatak, Marie Byrd Land * Noble Peak, Wiencke Island * Noble Rocks, Graham Land Australia * Noble Island, Great B ...

combatants on the battlefield or in a

tournament A tournament is a competition involving at least three competitors, all participating in a sport or game. More specifically, the term may be used in either of two overlapping senses: # One or more competitions held at a single venue and concentr ...

, even while covered in

, it is not surprising that

heraldic Heraldry is a discipline relating to the design, display and study of armorial bearings (known as armory), as well as related disciplines, such as vexillology, together with the study of ceremony, rank and pedigree. Armory, the best-known branc ...

elements constantly incorporated the shield and the helmet, these often being the most visible parts of a

knight A knight is a person granted an honorary title of knighthood by a head of state (including the Pope) or representative for service to the monarch, the church or the country, especially in a military capacity. Knighthood finds origins in the Gr ...

's military equipment. The practice of indicating

peerage A peerage is a legal system historically comprising various hereditary titles (and sometimes non-hereditary titles) in a number of countries, and composed of assorted noble ranks. Peerages include: Australia * Australian peers Belgium * Belgi ...

through the display of barred or grilled helmets first appeared around 1587-1615, and the heraldic convention of displaying helmets of rank in the United Kingdom, which came into vogue around Stuart times, is as follows: *Sovereign: a gold barred-face (tournament) helm placed affronté *Peer's helmet: silver barred-face (tournament) helm placed in profile *Knight's or baronet's helmet: steel helm (earlier jousting helm, later

close helm The close helmet or close helm is a type of combat helmet that was worn by knights and other men-at-arms in the Late Medieval and Renaissance eras. It was also used by some heavily armoured, pistol-armed, cuirassiers into the mid-17th century. ...

) placed affronté with visor open *Esquire's helmet: steel helm placed in profile with visor closed Earlier

rolls of arms Roll or Rolls may refer to: Movement about the longitudinal axis * Roll angle (or roll rotation), one of the 3 angular degrees of freedom of any stiff body (for example a vehicle), describing motion about the longitudinal axis ** Roll (aviation), ...

reveal, however, that early heraldic helmets were depicted in a manner faithful to the styles in actual military or

use at the time.Fox-Davies, P. 316.

Gallery

File:Cretan Helmet.jpg, Boar tusk

Minoan The Minoan civilization was a Bronze Age Aegean civilization on the island of Crete and other Aegean Islands, whose earliest beginnings were from 3500BC, with the complex urban civilization beginning around 2000BC, and then declining from 1450B ...

helmet, 1600–1500 BCE File:Boars's tusk helmet NAMA6568 Athens Greece1.jpg, Boar tusk Mycenaean helmet, 14th century BCE File:Corinthian helmet Denda Staatliche Antikensammlungen 4330.jpg,

, 500 BCE File:Greek - Chalcidian-Type Helmet - Walters 542468.jpg, Greek

Chalcidian helmet A Chalcidian helmet or Chalcidian type helmet was a helmet made of bronze and worn by ancient warriors of the Hellenic world, especially popular in Greece in the fifth and fourth centuries BC. The helmet was also worn extensively in the Greek (s ...

, 500 BCE File:Bronze helmet of conical shape MET DP21094.jpg, Greek

pilos The pileus (, ; also or in Latin) was a brimless felt cap worn in Ancient Greece, Etruria, Illyria (Pannonia), later also introduced in Ancient Rome. The pileus also appears on Apulian red-figure pottery. The pilos together with the petasos we ...

helmet, 450–425 BCE File:Boeotian helmet.jpg,

Boeotian helmet The Boeotian helmet was a type of combat helmet used in Ancient Greece during the classical and Hellenistic periods, as well as in Ancient Rome; it possibly originated in the Greek region of Boeotia. Characteristics The Boeotian helmet was mod ...

, 4th century BCE File:Illyrian-Greek helmet from Montenegro - Budva -4th cBC.png, Greek

Illyrian type helmet The Illyrian type helmet (or Greco-Illyrian type helmet) is a style of bronze helmet, which in its later variations covered the entire head and neck, and was open-faced in all of its forms.. It originated in Peloponnese, ancient Greece, and was ...

, 4th century BCE File:Pletena helmet.jpg,

Thracian helmet A helmet is a form of protective gear worn to protect the head. More specifically, a helmet complements the skull in protecting the human brain. Ceremonial or symbolic helmets (e.g., a policeman's helmet in the United Kingdom) without protect ...

, 4th century BCE File:Parade helmet.jpg, Celtic (Gallic) parade helmet, 350 BCE File:Ancient bronze greek helmet -South Italy.jpg,

Attic helmet The Attic helmet was a type of helmet that originated in Classical Greece and was widely used in Italy and the Hellenistic world until well into the Roman Empire. Its name is a modern historiographic convention: "Terms such as Illyrian and Attic ar ...

, 350 BCE to 300 BCE File:Phrygian helmet.jpg, Greek bronze

Phrygian helmet The Phrygian helmet, also known as the Thracian helmet, was a type of helmet that originated in ancient Greece and was widely used in Thrace, Dacia, Magna Graecia and the Hellenistic world until well into the Roman Empire. Characteristics The n ...

, 350 BCE to 300 BCE File:Roman helmet.jpg, Roman cavalry helmet, 1st century CE File:The Nijmegen cavalry helmet, an iron mask sheathed in bronze and silver discovered in 1915 on the left bank of the Waal river near Nijmegen, second half of the first century, Museum het Valkhof, Nijmegen (Netherlands) (9569871602).jpg, Roman cavalry helmet File:The black helmet of a Mongolian army(2).JPG, Black Mongolian helmet File:Khalili Collection Islamic Art mtw 1415.jpg, alt=Iranian helmet, iron, bronze rivets and gilding., Iranian, 7th or 8th century AD Spangenhelm File:KHM Wien A 12 - Bascinet by Master A, Milan, c. 1400, side.jpg, Early 15th century

with ''hounskull'' visor File:Helm for the Joust of Peace (Stechhelm) MET DP271142.jpg, 15th-century German

used in

jousting Jousting is a martial game or hastilude between two horse riders wielding lances with blunted tips, often as part of a tournament (medieval), tournament. The primary aim was to replicate a clash of heavy cavalry, with each participant trying t ...

File:Helmet of Mamluk Sultan Qaitbay, Hermitage Museum, St. Petersburg (37046195461).jpg, Ottoman zischagge helmet, mid-16th century File:German - Close Helmet of the "Maximilian" Style - Walters 51465 - Profile.jpg, 16th century Maximilian style

close helmet The close helmet or close helm is a type of combat helmet that was worn by knights and other men-at-arms in the Late Medieval and Renaissance eras. It was also used by some heavily armoured, pistol-armed, cuirassiers into the mid-17th century. ...

File:Parade helmet VandA M.52-1909.jpg, 19th-century Japanese

kabuto ' (兜, 冑) is a type of helmet first used by ancient Japanese warriors which, in later periods, became an important part of the traditional Japanese armour worn by the samurai class and their retainers in feudal Japan. Note that in the Jap ...

File:Braunschweigisches Husaren-Regiment Nr. 17 Totenkopf Paradehelm Cut out.jpg, German

Pickelhaube The ( pl. ; from german: Pickel, lit=point' or 'pickaxe, and , , a general word for "headgear"), also , is a spiked helmet that was worn in the 19th and 20th centuries by Prussian and German military officers, firefighters and police. Although ...

File:Musee-de-lArmee-IMG 0976.jpg, Late 19th-century pith helmet File:Soldiers Zhejiang Campaign 1942.jpg, Type 90 helmets worn by the Japanese during the Second World War File:Bundesarchiv Bild 101I-089-3779-11A, Russland, Hauptmann mit Ritterkreuz Recolored.jpg, A German

stahlhelm The ''Stahlhelm'' () is a German military steel combat helmet intended to provide protection against shrapnel and fragments of grenades. The term ''Stahlhelm'' refers both to a generic steel helmet and more specifically to the distinctive Ger ...

during World War II File:VMA-311Flight Helmet.JPG,

Vietnam War The Vietnam War (also known by #Names, 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 Vie ...

era Marine

squadron Squadron may refer to: * Squadron (army), a military unit of cavalry, tanks, or equivalent subdivided into troops or tank companies * Squadron (aviation), a military unit that consists of three or four flights with a total of 12 to 24 aircraft, de ...

VMA-311

flight helmet A flight helmet, sometimes referred to as a "bone dome" or "foam dome", is a special type of helmet primarily worn by military aircrew. A flight helmet can provide:Aerospace International (magazine), March 2011, pages 26–29 * Impact protection ...

File:US soldiers wearing the PASGT helmet, Hawaii (cropped).jpg,

helmet File:Fire helmet, c. 1893, leather, steel - Old Colony History Museum - Taunton, Massachusetts - DSC03887.jpg, Leather and steel firefighting helmet File:Sporthelme.jpg, Ski helmet (left), paragliding helmet (right) File:STS-135 Sandy Magnus undergoes a fit check of her Sokol suit.jpg, Astronaut helmet File:Aviakit Pudding basin helmet.jpg, Aviakit motorcyclist "pudding basin" helmet File:White-helmets.jpg, Full face and open face motorcycle helmets File:Hurling helmet 000 0200.jpg,

Hurling Hurling ( ga, iománaíocht, ') is an outdoor team game of ancient Gaelic Irish origin, played by men. One of Ireland's native Gaelic games, it shares a number of features with Gaelic football, such as the field and goals, the number of p ...

Camogie Camogie ( ; ga, camógaíocht ) is an Irish stick-and-ball team sport played by women. Camogie is played by 100,000 women in Ireland and worldwide, largely among Irish communities. A variant of the game of hurling (which is played by men onl ...

helmet File:Magnus Muhrén 2012b.jpg,

Bandy Bandy is a winter sport and ball sport played by two teams wearing ice skates on a large ice surface (either indoors or outdoors) while using sticks to direct a ball into the opposing team's goal. The international governing body for bandy is ...

helmet

References

External links

"Helmets...A Medieval Note In Modern Warfare"
August 1942, ''

Popular Science ''Popular Science'' (also known as ''PopSci'') is an American digital magazine carrying popular science content, which refers to articles for the general reader on science and technology subjects. ''Popular Science'' has won over 58 awards, incl ...