Glider snatch pick-up

Last updated
A CG-4 Glider taking off after a snatch pickup in 1942 Laurinburg-Maxton Army Air Base CG-4 Glider taking off after snatch pickup.jpg
A CG-4 Glider taking off after a snatch pickup in 1942

Glider snatch pick-up was a technique used by the Allies of World War II to launch a military glider with a low-flying powered aircraft (the tow or tug), which did not have to land. [1]

The snatching aircraft, typically a Douglas C-47 Skytrain ("Dakota"), had a 20 ft (6 m) arm hanging down at a 45-degree angle, supporting a hook at the tip. The hook was attached to a steel rope attached to an automatic winch containing 1000 ft (300 m) of steel cable. On flyover, the hook engaged in a square loop of a nylon tow rope supported on two poles about 20 ft (6 m) apart and 3 ft (1 m) off the ground. This loop was attached to a 180 ft (55 m) nylon tow rope attached to the front of the glider. The special design of the hook meant it was less likely to snag the ground but would grab the loop.

When the hook engaged in the loop, the rope initially paid out from the winch, and then gradually, a brake was automatically applied until up to about 800 ft (244 m) of cable had been paid out. This, and the stretch in the nylon rope, reduced shock loading to less than 1 g for a duration of around 3 to 6 seconds, by which time the glider would be airborne. The steel wire was then winched in. It was possible for one plane to pick up two gliders in this way, in two passes. Gliders could be retrieved for re-use in this way after combat operations.

Some casualties were evacuated from the D-Day landings back to the United Kingdom using this technique. Several rescues of downed aircraft passengers were also performed by landing gliders to pick up survivors and then snatching them from remote locations. [2] [3]

See also

Related Research Articles

<span class="mw-page-title-main">Paragliding</span> Soaring with a paraglider

Paragliding is the recreational and competitive adventure sport of flying paragliders: lightweight, free-flying, foot-launched glider aircraft with no rigid primary structure. The pilot sits in a harness or in a cocoon-like 'pod' suspended below a fabric wing. Wing shape is maintained by the suspension lines, the pressure of air entering vents in the front of the wing, and the aerodynamic forces of the air flowing over the outside.

<span class="mw-page-title-main">Winch</span> Mechanical device that is used to adjust the tension of a rope

A winch is a mechanical device that is used to pull in or let out or otherwise adjust the tension of a rope or wire rope.

<span class="mw-page-title-main">DFS 230</span> German WWII transport glider

The DFS 230 was a German transport glider operated by the Luftwaffe in World War II. It was developed in 1933 by the Deutsche Forschungsanstalt für Segelflug with Hans Jacobs as the head designer. The glider was the German inspiration for the British Hotspur glider and was intended for airborne assault operations.

<span class="mw-page-title-main">Airspeed Horsa</span> British WWII troop-carrying glider

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.

<span class="mw-page-title-main">Mid-air retrieval</span>

Mid-air retrieval is a technique used in atmospheric reentry when the reentering vehicle is incapable of a satisfactory unassisted landing. The vehicle is slowed by means of parachutes, and then a specially-equipped aircraft matches the vehicle's trajectory and catches it in mid-air.

<span class="mw-page-title-main">General Aircraft Hamilcar</span> British assault glider of the Second World War

The General Aircraft Limited GAL.49 Hamilcar or Hamilcar Mark I was a large British military glider produced during the Second World War, which was designed to carry heavy cargo, such as the Tetrarch or M22 Locust light tank. When the British airborne establishment was formed in 1940 by the order of Prime Minister Winston Churchill it was decided to develop a large glider which would be able to transport heavy equipment in support of airborne troops. General Aircraft Limited were chosen in January 1941 to develop this glider, which they designated the GAL.49 'Hamilcar'. It was designed to transport a light tank or two Universal Carriers. A number of problems, which included vacillation by the War Office on the number of gliders it wanted and poor management by GAL, led to delays in the production of the Hamilcar and it was not until mid-1943 that the first production glider was assembled. These problems were only partially solved and production of the glider continued to be slow, hampered by difficulties in finding suitable locations to store and construct them once their parts were produced. A total of 344 Hamilcars had been built when production ended in 1946.

<span class="mw-page-title-main">Arresting gear</span> Cable used to rapidly decelerate an aircraft as it lands

An arresting gear, or arrestor gear, is a mechanical system used to rapidly decelerate an aircraft as it lands. Arresting gear on aircraft carriers is an essential component of naval aviation, and it is most commonly used on CATOBAR and STOBAR aircraft carriers. Similar systems are also found at land-based airfields for expeditionary or emergency use. Typical systems consist of several steel wire ropes laid across the aircraft landing area, designed to be caught by an aircraft's tailhook. During a normal arrestment, the tailhook engages the wire and the aircraft's kinetic energy is transferred to hydraulic damping systems attached below the carrier deck. There are other related systems that use nets to catch aircraft wings or landing gear. These barricade and barrier systems are only used for emergency arrestments for aircraft without operable tailhooks.

<span class="mw-page-title-main">General Aircraft Hotspur</span> British military glider of the Second World War

The General Aircraft GAL.48 Hotspur was a military glider designed and built by the British company General Aircraft Ltd during World War II. When the British airborne establishment was formed in 1940 by order of Prime Minister Winston Churchill, it was decided that gliders would be used to transport airborne troops into battle. General Aircraft Ltd were given a contract by the Ministry of Aircraft Production in June 1940 to design and produce an initial glider for use by the airborne establishment, which resulted in the Hotspur.

<span class="mw-page-title-main">Glider infantry</span> Air warfare

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.

<span class="mw-page-title-main">Radio-controlled glider</span> Type of radio-controlled aircraft

A radio-controlled glider is a type of radio-controlled aircraft that normally does not have any form of propulsion. They are able to sustain continuous flight by exploiting the lift produced by slopes and thermals, controlled remotely from the ground with a transmitter. They can be constructed from a variety of materials, including wood, plastic, polymer foams, and composites, and can vary in wing loading from very light to relatively heavy, depending on their intended use.

<span class="mw-page-title-main">Fulton surface-to-air recovery system</span> System used to retrieve persons on the ground using an aircraft

The Fulton surface-to-air recovery system (STARS), also known as Skyhook, is a system used by the Central Intelligence Agency (CIA), United States Air Force, and United States Navy for retrieving individuals on the ground using aircraft such as the MC-130E Combat Talon I and B-17 Flying Fortress. It involves using an overall-type harness and a self-inflating balloon with an attached lift line. An MC-130E engages the line with its V-shaped yoke and the person is reeled on board. Red flags on the lift line guide the pilot during daylight recoveries; lights on the lift line are used for night recoveries. Recovery kits were designed for one- and two-man retrievals.

<span class="mw-page-title-main">Waco CG-4</span> American WWII glider

The Waco CG-4 was the most widely used American troop/cargo military glider of World War II. It was designated the CG-4A by the United States Army Air Forces, and given the service name Hadrian by the British.

<span class="mw-page-title-main">Flugwissenschaftliche Vereinigung Aachen</span> Aachen-based non-profit organisation

Flugwissenschaftliche Vereinigung Aachen is a non-profit organization, founded in 1920, which is closely associated to RWTH Aachen University, with members consisting of RWTH Aachen students, which have included Felix Kracht. FVA supports and organizes various training courses for flight training, handling of composites and other aircraft materials including steel and aluminum.

<span class="mw-page-title-main">Gliding</span> Recreational activity and competitive air sport

Gliding is a recreational activity and competitive air sport in which pilots fly unpowered aircraft known as gliders or sailplanes using naturally occurring currents of rising air in the atmosphere to remain airborne. The word soaring is also used for the sport.

<span class="mw-page-title-main">Laurinburg–Maxton Army Air Base</span> Inactive USAAF base, closed 1945

Laurinburg–Maxton Army Air Base is an inactive United States Air Force base, approximately 6 miles east-northeast of Laurinburg, North Carolina. It was active during World War II as a I Troop Carrier Command training airfield.

<span class="mw-page-title-main">Aerial advertising</span> Type of advertisement

Aerial advertising is a form of advertising that incorporates the use of flogos, manned aircraft, or drones to create, transport, or display, advertising media. The media can be static, such as a banner, logo, lighted sign or sponsorship branding. It can also be dynamic, such as animated lighted signage, skywriting, or audio.

<span class="mw-page-title-main">Glider (sailplane)</span> Type of aircraft used in the sport of gliding

A glider or sailplane is a type of glider aircraft used in the leisure activity and sport of gliding. This unpowered aircraft can use naturally occurring currents of rising air in the atmosphere to gain altitude. Sailplanes are aerodynamically streamlined and so can fly a significant distance forward for a small decrease in altitude.

<span class="mw-page-title-main">Polyt V</span> Single-engined, single-seat glider tug

The Polyt V is a single-engined, single-seat glider tug designed and built by graduates and students of the Technical University of Denmark. Only one was constructed but it has had a long active life.

The NRC tailless glider, also called the NRL tailless glider, was a two-seat tailless research glider designed by the National Research Council of Canada and built by the National Research Laboratories, at the instigation of G.T.R. Hill who had previously designed the British Westland-Hill Pterodactyl series of tailless aircraft.

Marlette Township Airport is a public use airport located one mile southwest of Marlette, Michigan. The airport is publicly owned by Marlette Township.

References

  1. ESCO Arresting (31 March 2009). "All American Aviation and the US Army Glider Pick-ups" via YouTube.
  2. https://www.mylubbock.us/docs/silent-wings-museum-file-library/retrievalsystem.pdf [ dead link ]
  3. Mrazek, J.E. (2011). Airborne Combat: The Glider War/Fighting Gliders of WWII. Stackpole Books. p. 417. ISBN   9780811744669 . Retrieved 2017-01-07.