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In military terminology, a chalk is a group of paratroopers or other soldiers that deploy from a single aircraft. [1] A chalk often corresponds to a platoon-sized unit for air assault operations, or a company-minus-sized organization for airborne operations. For air transport operations, it can consist of up to a company-plus-sized unit. Frequently, a load of paratroopers in one aircraft, prepared for a drop, is also referred to as a stick.
The term was first coined in World War II for airborne troops during Operation Overlord, the Allied invasion of Europe. The aircraft flight-number was placed on the troops' backs with chalk. It was later used during the Vietnam War, when it was common practice to number with chalk the sides of the helicopters involved in an operation.
In current military terminology a "chalk" may mean either passengers or equipment loaded as cargo. Equipment is loaded in the order it will be needed on arrival. It is not uncommon for planners to refer to aircraft loads by their chalk number, "You are in chalk five but your gear will be shipped in chalk two."
In the Army 75th Ranger Regiment they use the term chalk. A chalk can be made of a Company or as small as a four man fire team. It takes at least four men to make a fire team so that is the smallest number of men that can be called a chalk.
In some instances, when a convoy clearance cannot be obtained, a convoy will be divided up into different groups with four or fewer trucks in each group.[ clarification needed ] Those groups will be referred to as chalk one, chalk two, chalk three, etc. This is to avoid having to obtain a convoy clearance while still maintaining power in numbers while traveling.[ clarification needed ]
A paratrooper or military parachutist is a soldier trained to conduct military operations by parachuting directly into an area of operations, usually as part of a large airborne forces unit. Traditionally paratroopers fight only as light infantry armed with small arms and light weapons, although some paratroopers can also function as artillerymen or mechanized infantry by utilizing field guns, infantry fighting vehicles and light tanks that are airdropped together into the combat zone.
Airborne forces are ground combat units carried by aircraft and airdropped into battle zones, typically by parachute drop. Parachute-qualified infantry and support personnel serving in airborne units are also known as paratroopers.
The 11th Airborne Division is a United States Army airborne formation based in Alaska.
The Airspeed AS.51 Horsa was a British troop-carrying glider used during the Second World War. It was developed and manufactured by Airspeed Limited, alongside various subcontractors; the type was named after Horsa, the legendary 5th-century conqueror of southern Britain.
In military organizations, a pathfinder is a specialized soldier inserted or dropped into place in order to set up and operate drop zones, pickup zones, and helicopter landing sites for airborne operations, air resupply operations, or other air operations in support of the ground unit commander. Pathfinders first appeared in World War II, and continue to serve an important role in today's modern armed forces, providing commanders with the option of flexibly employing air assets. There was a group of pilots who were also designated pathfinders. They flew C-47 (DC-3) aircraft and were the lead planes followed by paratroop transports, used for dropping paratroopers into designate drop zones such as on D-Day, the Normandy Invasion.
Air assault is the movement of ground-based military forces by vertical take-off and landing (VTOL) aircraft, such as helicopters, to seize and hold key terrain that has not been fully secured, and to directly engage enemy forces behind enemy lines. In addition to regular infantry training, air-assault units usually receive training in rappelling, fast-roping techniques, and air transportation. Their equipment is sometimes designed or field-modified to allow better transportation and/or carrying within aircraft.
The Battle of Cassinga also known as the Cassinga Raid or Kassinga Massacre was a controversial South African airborne attack on a South West Africa People's Organization (SWAPO) military camp at the town of Cassinga, Angola on 4 May 1978. Conducted as one of the three major actions of Operation Reindeer during the South African Border War, it was the South African Army's first major air assault operation.
An airdrop is a type of airlift in which items including weapons, equipment, humanitarian aid or leaflets are delivered by military or civilian aircraft without their landing. Developed during World War II to resupply otherwise inaccessible troops, themselves often airborne forces, airdrops can also refer to the airborne assault itself.
The United States Army Airborne School—widely known as Jump School—conducts the basic paratrooper training for the United States Armed Forces. It is operated by the 1st Battalion (Airborne), 507th Infantry, United States Army Infantry School, Fort Moore, Georgia. The Airborne School conducts the Basic Airborne Course, which is open to troops from all branches of the United States Department of Defense, Reserve Officer Training Corps, and allied military personnel.
Glider infantry was a type of airborne infantry in which soldiers and their equipment were inserted into enemy-controlled territory via military glider. Initially developed in the late 1930s by Germany, glider infantry units were used extensively during World War II but are no longer used by any modern military.
Military gliders have been used by the militaries of various countries for carrying troops and heavy equipment to a combat zone, mainly during the Second World War. These engineless aircraft were towed into the air and most of the way to their target by military transport planes, e.g., C-47 Skytrain or Dakota, or bombers relegated to secondary activities, e.g., Short Stirling. Most military gliders do not soar, although there were attempts to build military sailplanes as well, such as the DFS 228.
No. 190 Squadron was a Royal Air Force squadron with a relatively short existence, but a very broad career. It served as a trainer squadron during the first World War and as convoy escort, airborne support and transport squadron during World War II.
A military helicopter is a helicopter that is either specifically built or converted for use by military forces. A military helicopter's mission is a function of its design or conversion. The most common use of military helicopters is transport of troops, but transport helicopters can be modified or converted to perform other missions such as combat search and rescue (CSAR), medical evacuation (MEDEVAC), airborne command post, or even armed with weapons for attacking ground targets. Specialized military helicopters are intended to conduct specific missions. Examples of specialized military helicopters are attack helicopters, observation helicopters and anti-submarine warfare (ASW) helicopters.
Jumpmasters are the expert paratroopers in an airborne unit who train and teach the military techniques for jumping from airplanes.
The Brigada de Reacção Rápida is a unit of the Portuguese Army which was known as BAI - Brigada Aerotransportada Independente until 2006. Its different units are highly trained Paratroopers, Commandos and Special Operations Troops capable of responding to threats in any part of continental Portugal or any other Portuguese overseas territory with quick deployment by air, sea or land. This brigade is the most requested by the Portuguese Government to fulfill international assignments due to its experience and multi-role capability.
The Regimento de Paraquedistas, based in Tancos, Portugal, is a unit of the Portuguese Army and serves as the instruction center for recruitment and training of the Portuguese paratroopers. This unit includes an entire battalion, acting as support and reserve for airborne units which contains for example, military war dogs and airborne pathfinders and an instruction battalion responsible for the forming of new paratroopers.
Mission Boston was a parachute combat assault at night by Major General Matthew Ridgway's U.S. 82nd Airborne Division on June 6, 1944, part of the American airborne landings in Normandy during World War II. Boston was a component element of Operation Neptune, the assault portion of the Allied invasion of Normandy, codenamed Operation Overlord. 6,420 paratroopers jumped from nearly 370 Douglas C-47 Skytrain troop carrier aircraft into an intended objective area of roughly 10 square miles (26 km2) located on either side of the Merderet river on the Cotentin Peninsula of France, five hours ahead of the beach landings.
The British airborne operations in North Africa were conducted by British paratroopers of the 1st Parachute Brigade, commanded by Brigadier Edwin Flavell, as part of the Tunisian campaign of World War II, over the period between November 1942 and April 1943.
The Portuguese Paratroopers are an elite infantry assault force, representing the bulk of the airborne forces of Portugal. They were created in 1956 as part of the Portuguese Air Force, being transferred to the Portuguese Army in 1993. Presently, most of the Paratroopers are part of the Portuguese Rapid Reaction Brigade which comprises all 3 special forces troops.
The People's Liberation Army Air Force Airborne Corps is a combined air force ground forces corps which consists of air assault infantry, airborne forces, and special forces under direct command of the People's Liberation Army Air Force (PLAAF). It was reorganized and renamed from the 15th Airborne Corps in May 2017 and now comprises six airborne brigades and a special forces brigade. The PLAAF Airborne Corps is China's primary strategic airborne unit and part of the newly formed rapid reaction units (RRUs) of the Chinese military which is primarily designated for air assault, airborne, long-range penetration, and special warfare missions. Its role is similar to that of the U.S. Army's XVIII Airborne Corps, the British Army's Parachute Regiment, and the Russian Airborne Forces (VDV).