A bomb suit, Explosive Ordnance Disposal (EOD) suit or a blast suit is a heavy suit of body armor designed to withstand the pressure generated by a bomb and any fragments the bomb may produce. [1] [2] [3] It is usually worn by trained personnel attempting bomb disposal. In contrast to ballistic body armors, which usually focus on protecting the torso and head, a bomb suit must protect all parts of the body, since the dangers posed by a bomb's explosion affect the entire body.
Parts of the bomb suit overlap for maximum protection. The suit protects in several different ways. It deflects or stops projectiles that may come from an exploded device. It also stops or greatly decreases the pressure of the blast wave being transmitted to the person inside of the suit. Most bomb suits, such as the Advanced Bomb Suit, use layers of Kevlar, foam, and plastic to accomplish these functions.
In order to maximize protection, bomb suits come with a pair of interchangeable gloves and wrist guard attachments. This gives the wearer's hands mobility and protection needed for the task and avoid cross contamination of any evidence found (e.g., fingerprints).
EOD technicians wear bomb suits during reconnaissance, "render safe" or disruption procedures on potential or confirmed explosive threats. Such suits must provide a tremendous degree of protection from fragmentation, blast overpressure, thermal and tertiary effects should the threat device detonate. At the same time, the suit can significantly hinder their mobility or situational awareness.
Modern day EOD units had their beginnings in World War II, when the German Luftwaffe greatly increased the number of bombs dropped on British soil. As the number of civilian casualties grew due to delayed explosion of bombs, which had often penetrated several feet into the ground after being dropped from planes, men were trained to defuse the unexploded devices and groups were dedicated to try to keep up with that task. [4] As fuse designs changed, many of these early UXD (unexploded device) soldiers died until more successful means to defeat a new design were developed.
As the United States saw its likely involvement in World War II, they requested help from the British to train a civilian EOD force that could defuse unexploded bombs in urban areas. The human cost of learning the variety of fuses and how to defeat them was lower for the U.S. due to this education. After it became clear that EOD tasks were best handled by the military, the U.S. tried several ways to organize EOD personnel that would allow for the need for both specialized training and diverse deployment. [5] [6]
In photos of early missions to defuse unexploded bombs, [7] the men are not wearing any protective gear. In fact, they are often shirtless to cope with the heat generated by the manual labor of digging around the devices before they could be defused. Basically, the individual defusing the bomb succeeded - or died.
The first EOD suits consisted of Kevlar type material and/or armor plates made of metal or fiber-reinforced plastic. Their purpose was to protect the wearer from penetrating injuries by fragments from an exploding device. In the mid-1990s, research showed that these materials alone were not effective against the blast wave itself, which can cause blast lung and other potentially deadly internal injuries. [8] Modern EOD suits have layers of Kevlar, plating, and foam to provide protection from both fragments and the blast wave itself.
The threats posed by an Improvised Explosive Device, commonly known as an IED, can also include chemical or biological agents. This has led to significant advancements since 1999 in the design of bomb disposal suits and helmets. For example, a modern bomb suit may address both conventional blast threats and chemical/biological agents by incorporating a chemical protective undergarment and a helmet compatible with a self-contained breathing apparatus (SCBA).
In 2006, the U.S. National Institute of Justice supported a program to develop a national testing standard for EOD suits so that the protection afforded by a given suit can be described in a standard way. [9] The goal was to have a means to compare the performance of different designs with each other and with expected threats, similar to the NIJ standards that are widely used to test and compare body armor or materials used to stop ballistic threats.
Developers must consider more than just protection, since a person must work on a stressful task that also requires fine motor skills while wearing a bomb suit. Other factors that must be considered include
The pieces of a bomb suit overlap with other pieces for maximum protection from the front and minimal protection for the back and sides from an explosive device. The suit protects in several ways. It deflects or stops projectiles that may come from an exploded device. The second way it protects is by stopping the blast wave from being transmitted and injuring the wearer. Usually, Kevlar, foam, and plastic are layered and covered with fire retardant materials to accomplish these things. It is important that the fibers are strain-rate sensitive, or become more rigid if struck by an object traveling at high speeds, according to a ballistics engineer working for bomb suit manufacturer HighCom Security. [10]
Until the mid-1990s, EOD suits consisted of Kevlar and/or armor plates to stop projectiles. However, the suits did not offer much protection against the blast wave itself. The most recognized injury due to the blast wave is called “blast lung.” The lungs (and other internal organs) can be injured by the blast wave and bleed, even when there is no penetrating injury; such internal injuries can be fatal. In the mid-1990s, research conducted in the UK showed that textile and rigid plate armor by themselves do not protect the lungs from blast injury. [8] It was found that a layer with high acoustic impedance with a backing of a softer, low acoustic impedance layer (such as low density foam) would protect from blast injury. However, it was also shown that it is important to understand the frequency content of the applied blast wave and to experimentally test the way materials are put together to make sure they are effective.
To effectively stop a blast wave, thick layers of Kevlar, foam and plastic are needed to prevent serious bodily harm. Since the entire body needs protection, the resulting bomb suit is heavy (80 lb (36 kg) or more), hot to the point of risking heat stress, and impairs movement. Therefore, often one individual will put on a suit to approach a device for defusing after it has been identified. The weight of the suit is often a tradeoff with the amount of protection it can provide. A range of bomb suits are thus available so that agencies can choose the needed protection without unnecessary weight when possible. A minimal suit consists of a jacket, apron and helmet that weigh as little as 11 lb (5.0 kg). These are listed as being suitable for demining activities but not EOD.
The materials needed to make bomb suits protective do not release body heat generated by the wearer. [1] The result can be heat stress, which can lead to illness and disorientation, reducing the wearer's ability to accomplish the task. [1] [2] [3] [11] The most recent models of bomb suits include battery-operated cooling systems to prevent heat stress. One manufacturer's study claims that the internal cooling systems on 39 to 81 lb (18 to 37 kg) bomb suits helped the wearer stay at workable temperatures for up to an hour, even in a hot environment. [12]
Bomb disposal is an explosives engineering profession using the process by which hazardous explosive devices are disabled or otherwise rendered safe. Bomb disposal is an all-encompassing term to describe the separate, but interrelated functions in the military fields of explosive ordnance disposal (EOD) and improvised explosive device disposal (IEDD), and the public safety roles of public safety bomb disposal (PSBD) and the bomb squad.
A bulletproof vest, also known as a ballistic vest or a bullet-resistant vest, is an item of body armour that helps absorb the impact and reduce or stop penetration to the torso by firearm-fired projectiles and fragmentation from explosions. The vest may come in a soft form, as worn by many police officers, prison officers, security guards, and some private citizens, used to protect against stabbing attacks or light projectiles, or hard form, using metallic or para-aramid components. Soldiers and police tactical units wear hard armour, either in conjunction with soft armour or alone, to protect against rifle ammunition or fragmentation.
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Overpressure is the pressure caused by a shock wave over and above normal atmospheric pressure. The shock wave may be caused by sonic boom or by explosion, and the resulting overpressure receives particular attention when measuring the effects of nuclear weapons or thermobaric bombs.
Unexploded ordnance, unexploded bombs (UXBs), and explosive remnants of war are explosive weapons that did not explode when they were employed and still pose a risk of detonation, sometimes many decades after they were used or discarded. When unwanted munitions are found, they are sometimes destroyed in controlled explosions, but accidental detonation of even very old explosives also occurs, sometimes with fatal results. A dud is an unexploded projectile fired in anger against an enemy, but which has failed to explode. A projectile not fired in anger but which has failed to explode is called a 'blind'.
Yahalom is a sayeret unit of the Israeli Combat Engineering Corps of the Israel Defense Forces (IDF). The name "Yahalom", while meaning 'diamond' in Hebrew, is also an abbreviation of "Special Operations Engineering Unit".
The Explosive Ordnance Disposal Badge is a military badge of the United States Armed Forces which recognizes those service members, qualified as explosive ordnance disposal (EOD) technicians, who are specially trained to deal with the construction, deployment, disarmament, and disposal of high explosive munitions including other types of ordnance such as nuclear, biological and chemical weapons along with improvised explosive devices (IED) and improvised nuclear devices (IND). Also known as the “EOD Badge” or "Crab", the decoration is issued by the United States Army, Air Force, Navy and Marine Corps. The EOD Badge is the only occupational badge awarded to all four services under the United States Department of Defense.
Body armor, personal armor, armored suit (armoured) or coat of armor, among others, is protective clothing designed to absorb or deflect physical attacks. Historically used to protect military personnel, today it is also used by various types of police, private security guards, or bodyguards, and occasionally ordinary citizens. Today there are two main types: regular non-plated body armor for moderate to substantial protection, and hard-plate reinforced body armor for maximum protection, such as used by combatants.
United States Navy Explosive Ordnance Disposal technicians render safe all types of ordnance, including improvised, chemical, biological, and nuclear. They perform land and underwater location, identification, render-safe, and recovery of foreign and domestic ordnance. They conduct demolition of hazardous munitions, pyrotechnics, and retrograde explosives using detonation and burning techniques. They forward deploy and fully integrate with the various Combatant Commanders, Special Operations Forces (SOF), and various warfare units within the Navy, Marine Corps, Air Force and Army. They are also called upon to support military and civilian law enforcement agencies, as well as the Secret Service.
The HLONS (HMMWV Laser Ordnance Neutralization System), commonly known as ZEUS, is a solid-state laser weapon which is used by the U.S. military in order to neutralize surface land mines and unexploded ordnance. The ZEUS-HLONS system was a co-operative effort between Sparta Inc and NAVEODTECHDIV (Naval Explosive Ordnance Disposal Technology Division) to demonstrate that a moderate-power commercial solid state laser (SSL) and beam control system could be integrated onto a Humvee (HMMWV) and used to clear surface mines, improvised explosive devices (IEDs), or unexploded ordnance from supply routes and minefields.
Bunker gear is the personal protective equipment (PPE) used by firefighters. The term is derived from the fact that the trousers and boots are traditionally kept by the firefighters bunk at the fire station to be readily available for use.
A ballistic face mask, also known as facial armor, is a type of personal armor designed to protect the wearer's face from ballistic threats. Ballistic face masks are usually made of Kevlar or other bullet resistant materials and the inside of the mask may be padded for shock absorption, depending on the design.
The use of personal protective equipment (PPE) is inherent in the theory of universal precaution, which requires specialized clothing or equipment for the protection of individuals from hazard. The term is defined by the Occupational Safety and Health Administration (OSHA), which is responsible for PPE regulation, as the "equipment that protects employees from serious injury or illness resulting from contact with chemical, radiological, physical, electrical, mechanical, or other hazards." While there are common forms of PPEs such as gloves, eye shields, and respirators, the standard set in the OSHA definition indicates a wide coverage. This means that PPE involves a sizable range of equipment. There are several ways to classify them such as how gears could be physiological or environmental. The following list, however, sorts personal protective equipment according to function and body area.
The Advanced Bomb Suit (ABS) is a full body bomb suit designed to protect explosive ordnance disposal (EOD) soldiers from threats associated with improvised explosive devices, including those related to fragmentation, blast overpressure, impact, heat, and flame. Manufactured by Med-Eng, the ABS uses new material technology and design to improve protection, comfort, and ergonomics. The suit is constructed from Kevlar with an outer anti-static cover of 50/50 Nomex/Kevlar and comprises a jacket, crotchless trousers, groin cup, and rigid ballistic panels. To minimize weight and maximize flexibility, protection is provided at various levels, specific to body regions, based on susceptibility to wounds. The suit does not provide gloves to the operator so that maximum ability on the hands is present.
Blast-related ocular trauma comprises a specialized subgroup blast injuries which cause penetrating and blunt force injuries to the eye and its structure. The incidence of ocular trauma due to blast forces has increased dramatically with the introduction of new explosives technology into modern warfare. The availability of these volatile materials, coupled with the tactics of contemporary terrorism, has caused a rise in the number of homemade bombs capable of extreme physical harm.
The Kosovo Police's Bomb Squad (IED/EOD) was established in March 2006, prompted by the necessity to protect citizens’ lives and property, and to assist in investigation of crime-related cases.
No. 5131 (BD) Squadron was an Explosive Ordnance Disposal (EOD) squadron of the Royal Air Force. First formed in 1943, 5131 Bomb Disposal Squadron was the Royal Air Force’s explosive ordnance disposal capability for 77 years. Its technicians were trained to deal with conventional munitions, chemical munitions and improvised explosive devices. The Squadron also responded to aircraft crashes; clearing the area of explosive risks and making any ordnance, aircraft assisted escape systems and flare countermeasures safe. During the 77-year operational history of the squadron, it saw action in World War II, the Suez conflict, the Indonesian conflict, the Cyprus invasion, the Falkland Islands war, Kosovo, Bosnia, Iraq, Afghanistan and Northern Ireland as well as Military Assistance to Police taskings in the UK.
Technician Specialist in Deactivation of Explosive Artifacts, commonly known by its abbreviation TEDAX, is the Spanish name for bomb disposal units.
The Explosive Ordnance Disposal (EOD) Centre of Excellence is one of NATO Centres of Excellence, located in Trenčín, Slovakia. It assists NATO member countries, partners, other countries and international organizations, in order to enhance EOD capabilities.