GFM cloche

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GFM Type A cloche at Ouvrage Molvange Go-molvange-b8-cloche-gfm.jpg
GFM Type A cloche at Ouvrage Molvange

The GFM cloche was one of the most common defensive armaments on the Maginot Line. A cloche (bell) was a fixed and non-retractable firing position made of a thick iron casting which shielded its occupant. By comparison, turrets could be rotated and sometimes lowered so that only the top shell was exposed.

Contents

GFM is an acronym for Guetteur et Fusil-Mitrailleur (lookout and rifle-machine-gunner), which describes its purpose as a lookout and firing position for light weapons. [1] Most of the bunkers or blocks in a Maginot Line ouvrage were fitted with several fixed armoured cupolas or cloches. The cupolas were designed to allow the soldiers to perform reconnaissance or repel an attack with an absolute maximum of cover, from inside the bunker. The armament of each cloche varied significantly, but were typically equipped with some combination of:

Interior of a GFM cloche, looking upward at the Abri de Hatten Clochegfminterieur.JPG
Interior of a GFM cloche, looking upward at the Abri de Hatten

Description

The cloche consisted of two sections of cast iron: a lining or base that sat over a corresponding circular shaft in the concrete combat block, and the cloche itself, for the 1929 model 2.7 metres (8.9 ft) tall and 1.6 metres (5.2 ft) in outside diameter, projecting about 0.52 metres (1.7 ft) above a concrete apron. The apron sloped away from the cloche for drainage and to allow a depressed field of fire. The interior contained a platform arranged so that one occupant could fire from one of several openings in the 20-centimetre (7.9 in) thick bell. Firing openings were rectangular, and were fitted with a variety of shutters or firing ports, typically stepped to deflect shots away from the opening. A hose could be attached to the weapon to remove gun fumes. Ear-like lifting points projected to each side of the exposed portion of the cloche. [1]

Variants

There were two principal types of GFM cloche, each with a set of subtypes. The 1929 Type A cloche was the initial model, with a short variant, a longer version, a wider version, and a model that could accommodate two soldiers. The 1934 Type B cloche was larger in diameter, with thicker armor. The gun ports were redesigned to fire through a ball fitting that was more resistant to opposing fire. Some Type A cloches were fitted with the new ports. [1]

Periscope

Some GFM cloches possessed a shuttered fitting at the top of the bell through which a periscope could be raised. [1]

See also

GFM Type B cloche at Ouvrage Schoenenbourg Fort Schoenenbourg entree hommes detail tourelle.jpg
GFM Type B cloche at Ouvrage Schoenenbourg

Related Research Articles

JM cloche

The JM cloche is an element of the Maginot Line. It is a non-retractable non-rotating cupola of steel alloy like GFM cloches, but are armed with twin heavy machine guns, as opposed to the lighter automatic rifles associated with the GFM. There are 179 JM cloches on the Maginot Line.

Ouvrage Mont des Welches

Ouvrage Mont des Welches, a gros ouvrage of the Maginot Line fortifications, is part of the Fortified Sector of Boulay. It comprises two entrance blocks, one infantry block, one artillery block, one observation block and two combination blocks. It is located between petit ouvrage Coucou and gros ouvrage Michelsberg, facing Germany. Relatively small for a gros ouvrage, Mont des Welches saw a brief period of sharp action in June 1940, when German forces moving along the rear of the Maginot Line engaged the position without success. After modest renovations in the 1950s, Mont des Welches was abandoned in the 1970s.

Ouvrage Coucou

Ouvrage Coucou is a lesser work of the Maginot Line, located in the Fortified Sector of Boulay. The ouvrage consists of two infantry blocks, and is located between the gros ouvrages of Hackenberg and Mont des Welches, facing Germany, just north of Kemplich.

Ouvrage Hobling

Ouvrage Hobling is a lesser work of the Maginot Line. Located in the Fortified Sector of Boulay, the ouvrage consists of two infantry blocks and two observation blocks, and is located between gros ouvrage Michelsberg and petit ouvrage Bousse, facing Germany. It has been stripped of metals and abandoned.

Ouvrage Bovenberg

Ouvrage Bovenberg is a lesser work of the Maginot Line. Located in the Fortified Sector of Boulay, the ouvrage is located between petits ouvrages Berenbach and Denting, facing Germany. It consists of two infantry blocks and two artillery blocks.

Ouvrage Mottenberg

Ouvrage Mottenberg is a lesser work of the Maginot Line. Part of the Fortified Sector of Boulay, the ouvrage consists of one entrance block and two infantry blocks, and is located between petits ouvrages Coume Annexe Sud and Kerfent, facing Germany.

Ouvrage Einseling

Ouvrage Einseling is a lesser work of the Maginot Line. Located in the Fortified Sector of Faulquemont, the ouvrage consists of one infantry block, and is located between petits ouvrages Bambesch and Laudrefang, facing Germany. Einseling faced a determined German attack on 21 June 1940, during the Battle of France. Unlike its less fortunate neighbors to the west, Einseling was able to resist the attack with help from Laudrefang, its neighbor to the east. The ouvrage survives in a heavily battered state, with its lower levels flooded.

Ouvrage Téting

Ouvrage Téting is a lesser work of the Maginot Line. Located in the Fortified Sector of Faulquemont, the ouvrage consists of one infantry block and two observation blocks, and is located facing Germany between petits ouvrages Laudrefang and the Saar valley, which was to be inundated in times of emergency. With artillery support from its neighbor Laudrefang, Téting held out against German bombardment during the Battle of France in 1940. It is now abandoned.

Ouvrage Métrich

Ouvrage Métrich located in the village of Kœnigsmacker in Moselle, comprises part of the Elzange portion of the Fortified Sector of Thionville of the Maginot Line. A gros ouvrage, it is the third largest of the Line, after Hackenberg and Hochwald. It lies between petit ouvrage Sentzich and gros ouvrage Billig, facing Germany. Located to the east of the Moselle, it cooperated with Ouvrage Galgenberg to control the river valley.

Ouvrage Aumetz

Ouvrage Aumetz is a small work, or petit ouvrage of the Maginot Line. It is part of the Fortified Sector of the Crusnes and is located near the community of Aumetz in the Moselle département of France. The petit ouvrage flanked by the gros ouvrages Bréhain and Rochonvillers, all facing the France-Luxembourg border. Aumetz was initially planned as a gros ouvrage of six combat blocks, but only three infantry blocks were built. Aumetz saw limited action during the Battle of France. In the 1970s it was the first Maginot position to be offered for sale to the public.

LG cloche

The LG cloche was a defensive element common to many Maginot Line ouvrages. The fixed cupola was deeply embedded into the concrete on top of a combat block, with only the top surface visible. The opening permitted the ejection of grenades from the interior of the cloche, providing a means of close defense against enemy troops on top of the bunker. 75 units were installed in the Maginot Line.

VDP cloche

The VDP cloche was an element of the Maginot Line fortifications. A cloche (bell) was a fixed and non-retractable firing position made of a thick iron casting which shielded its occupant. By comparison, turrets could be rotated and sometimes lowered so that only the top shell was exposed. VDP cloches were used for observation of the surrounding area for artillery direction. VDP is an acronym for Vision Directe et Périscopique. By comparison with the GFM cloche, the VDP cloche had narrower ports and was consequently lower in profile.

Ouvrage Soetrich

Ouvrage Soetrich is a gros ouvrage of the Maginot Line in northeastern France. Soetrich is located between petits ouvrages Immerhof and Bois Karre, facing the France-Luxembourg border near the town of Hettange-Grande, part of the Fortified Sector of Thionville. Compared with other gros ouvrages, Soetrich is compact in arrangement, with the entries and underground ammunition magazines and barracks in close proximity to the combat blocks, accessed through underground galleries at an average depth of 30 metres (98 ft). Its primary purpose was to cover the main road to Luxembourg, just to the west. Along with its neighbors, Ouvrage Rochonvillers and Ouvrage Molvange, Soetrich was used during the Cold War as a secure command center for NATO forces.

Ouvrage Bois-Karre

Ouvrage Bois- Karre is located in the Fortified Sector of Thionville of the Maginot Line, facing the France - Luxembourg border. The petit ouvrage is situated in the Cattenom Forest between the gros ouvrages Soetrich and Kobenbusch, just south of Boust. It is unusual for a Maginot fortification in its construction as a single blockhouse, with no underground gallery system or remotely located entries. Bois-Karre has been preserved and is maintained as a museum.

Ouvrage Haut-Poirier

Ouvrage Haut-Poirier is a lesser work of the Maginot Line. The ouvrage consists of one entry and three infantry blocks, and is located between the Saare valley and petit ouvrage Welschhof, facing Germany. It is the only ouvrage in the Fortified Sector of the Sarre, the remainder of the area being covered by smaller blockhouses and areas of inundation. It was assaulted by German forces during the Battle of France and was captured after a seven-hour bombardment. Haut-Poirier is abandoned, although one of its satellite casemates is maintained as a museum.

Ouvrage Otterbiel

Ouvrage Otterbiel forms part of the Maginot Line in the Fortified Sector of Rohrbach, Sub-sector of Bitche, and is located on the Camp de Bitche of the French Army. It is located between gros ouvrage Schiesseck and petit ouvrage Grand Hohekirkel. Part of the Fortified Sector of Rohrbach, the petit ouvrage comprises four combat blocks and an entry block. Due to budget restrictions, a planned flanking infantry block was never constructed. Otterbiel saw no significant action in the Battle of France, and limited action during the 1944/45 Lorraine Campaign. It was renovated for use during the Cold War. Otterbiel is used for ammunition storage by the French Army.

Ouvrage Eth

Ouvrage Eth is an isolated petit ouvrage of the Maginot Line, built as part of the "New Fronts" program to address shortcomings in the Line's coverage of the border with Belgium. It is located between the villages of Eth and Wargnies-le-Grand, in Nord département. Eth is the sole Maginot fortification in the Fortified Sector of the Escaut, which primarily consisted of individual casemates, blockhouses and the improved 19th-century Fort de Maulde. During the Battle of France the ouvrage resisted artillery attack for four days before the garrison evacuated through a drain to a neighboring casemate.

Ouvrage Bersillies

Ouvrage Bersillies is a petit ouvrage of the Maginot Line, built as part of the "New Fronts" program to address shortcomings in the Line's coverage of the border with Belgium. Like the other three ouvrages near Maubeuge, it is built on an old Séré de Rivières system fortification, near the town of Bersillies. The preserved Ouvrage La Salmagne is nearby to the southeast. Bersillies is not open to the public.

Ouvrage Chesnois

Ouvrage Chesnois, also known as Ouvrage Chênois, is a gros ouvrage of the Maginot Line, located in the Fortified Sector of Montmédy, facing Belgium. The ouvrage lies between the towns of Montlibert and Thonne-le-Thil. It possesses six combat blocks. It is located between gros ouvrage Thonnelle and petit ouvrvage La Ferté. The position was sabotaged and abandoned by French forces that were ordered to retreat from the exposed position in June 1940 during the Battle of France. The ouvrage is now abandoned and sealed.

Casemate de Marckolsheim Sud

The Casemate de Marckolsheim Sud is a pre-World War II fortified position near the Rhine river in eastern France. The casemate was part of an extension of the Maginot Line fortifications along France's border with Germany. As a unit of the Fortified Sector of Colmar, the casemate was part of French defenses during the German assault of 15–18 June 1940, Operation Kleiner Bär. It has been preserved and is part of a museum focusing on the Rhine section of the Maginot Line. The museum is located at the eastern edge of the town of Marckolsheim.

References

  1. 1 2 3 4 Mary, Jean-Yves; Hohnadel, Alain; Sicard, Jacques (2009). Hommes et Ouvrages de la Ligne Maginot, Tome 2 (in French). Histoire & Collections. pp. 65–68. ISBN   2-908182-97-1.

Bibliography