Goliath tracked mine explained

Goliath Sd.kfz 302
Type:Demolition vehicle
Origin:Nazi Germany
Is Explosive:yes
Is Vehicle:yes
Service:1942–1945
Used By:Nazi Germany
Romania
Wars:World War II
Design Date:1942
Manufacturer:Borgward and Zündapp
Unit Cost:3,000 ℛℳ (1942)
Production Date:1942–1944
Number:7,564
Mass:370kg (820lb)
Length:1.5m (04.9feet)
Width:0.85m (02.79feet)
Height:0.56m (01.84feet)
Crew:One remote operator
Armour:5mm
Primary Armament:60kg (130lb) explosive charge
Engine:Two Electric Motors
Engine Power:2 x 2.5hp
Clearance:11.4cm (04.5inches)
Vehicle Range:1.5km (00.9miles) on-road;
0.75km (00.47miles) off-road.
Speed:6km/h
Ref:

The Goliath tracked mine (German: Leichter Ladungsträger Goliath, "Goliath Light Charge Carrier") was a series of two unmanned ground vehicles used by the German Army as disposable demolition vehicles during World War II. These were the electrically powered Sd.Kfz. 302 and the petrol-engine powered Sd.Kfz. 303a and 303b. They were known as "beetle tanks" by the Allies.

They carried 60kgor100kgkg (130lbor200lbkg) of high explosives, depending on the model, and were intended to be used for multiple purposes, such as destroying tanks, disrupting dense infantry formations, and the demolition of buildings or bridges. Goliaths were single-use vehicles that were destroyed by the detonation of their warhead.

Development

During and after World War I, a number of inventors devised small, remote-controlled, tracked vehicles intended to carry an explosive charge. During the war, the French developed two vehicles. The Crocodile Schneider Torpille Terrestre[1] carried a 40kg (90lb) explosive charge and saw limited combat use in June 1916. However, it performed poorly and was eclipsed by the first tanks, then being introduced.[2] The Aubriot-Gabet Torpille Électrique was driven by a single electric motor powered by a trailing cable. This vehicle may have been steered by clutch control on its tracks, although early versions may have lacked steering. This may not have mattered as its task was simply to cross no man's land to attack the long trenches of the enemy.[3] The Wickersham Land Torpedo was patented by American inventor Elmer Wickersham in 1918[4] and in the 1930s, a similar vehicle was developed by the French vehicle designer Adolphe Kégresse.

In late 1940, Kégresse's prototype was recovered by the Germans near the Seine; the Wehrmacht's ordnance office directed the Carl F.W. Borgward automotive company of Bremen, Germany to develop a similar vehicle for the purpose of carrying a minimum of 50kg (110lb) of explosives. The result was the SdKfz. 302 (Sonderkraftfahrzeug,), called the Leichter Ladungsträger, or Goliath, which carried 60kg (130lb) of explosives. The vehicle was steered remotely via a joystick control box. The control box was connected to the Goliath by a 650m (2,130feet), triple-strand cable. The cable was stored on a cable drum in the rear compartment of the Goliath. The cable was used for steering the vehicle left/right, forwards and reverse (reverse on the electric driven 302 version only) and to ignite the explosive charge. Each Goliath was disposable, being intended to be blown up with its target. Early model Goliaths used two electric motors but, as these were costly to make (3,000 Reichsmarks) and difficult to maintain and recharge in a combat environment, later models (known as the SdKfz. 303) used a cheaper two-stroke petrol engine.[5]

Service

Is Vehicle:yes
Goliath Sd.kfz 303
Origin:Germany
Type:Demolition vehicle
Service:1943–1945
Used By:Nazi Germany,
Design Date:1942
Manufacturer:Zündapp and Zachertz
Production Date:1943–1945
Number:4,929, both the model a and model b
Weight:430kg (950lb)
Length:1.69m (05.54feet)
Width:0.91m (02.99feet)
Height:0.62m (02.03feet)
Crew:One controller with remote.
Armour:10mm
Primary Armament:100kg (200lb) explosive charge
Engine:Zündapp SZ7 / 2-cylinder
Engine Power:12.5hp
Vehicle Range:12km (07miles) on-road;
7km (04miles) off-road.

Goliaths were used on all fronts where the Wehrmacht fought, beginning in early 1942. They were used principally by specialized Panzer and combat engineer units. Goliaths were used in Italy at Anzio in April 1944, and against the Polish resistance during the Warsaw Uprising in 1944. A few Goliaths were also seen on the beaches of Normandy during D-Day, though most were rendered inoperative after artillery blasts severed their command cables. Allied troops encountered a small number of Goliaths in the Maritime Alps following the landings in southern France in August 1944, with at least one being used successfully against a vehicle of the 509th Parachute Infantry Battalion.

Although a total of 7,564 Goliaths were produced, the single-use weapon was not considered a success due to high unit cost, low speed (just above 6km/h), poor ground clearance (just 11.4cm (04.5inches)), the vulnerable control cable, and thin armour which could not protect the vehicle from small-arms fire. The Goliath was also too big and heavy to be easily man-portable. They mostly failed to reach their targets, although the effect was considerable when they did.[6]

Large numbers of Goliaths were captured by the Allies. Although they were examined with interest by Allied intelligence, they were seen as having little military value. Some were used by the United States Army Air Force as aircraft tugs, although they quickly broke down as the disposable vehicles were not designed for sustained use.

Romanian version

During 1944, Romania designed and built its own model of remote-controlled tracked mine, known as "Romanian Goliath", due to lack of information about its actual name. However, it was markedly different from its German counterpart. The few surviving photos show that the vehicle had no armour, and it is not known if that was ever changed. It did have some functional improvements, however, as the Romanian-designed chassis allowed it to cross trenches and craters much better than its German counterparts. Little is known about the vehicle, other than that it never went beyond the prototype stage and that it weighed about two tonnes.[7]

Surviving examples

Surviving Goliaths are preserved at:

See also

References

Citations
Bibliography

External links

Notes and References

  1. Web site: Land torpedo Crocodile Schneider (France). weaponews.com.
  2. Everett and Toscano (2015) p.412
  3. Web site: A Brief Early History of Unmanned Systems . Everett . Bart . February 19, 2017 . Mechanix Illisttated.
  4. US . 1407969 . patent.
  5. Book: OKH . Army manual D 654/10, Leichter Ladungsträger, Gerätebeschreibung und Bedienungsanweisung . 1 April 1943.
  6. Everett and Toscano (2015) p.489
  7. Web site: "Goliath" — Дистанционно управляемая машина. October 5, 2018.
  8. Web site: Friends' Association of the Scientific Collection of Defence Engineering Specimens Koblenz | Home.