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Unditching roller

Photo of an M3 Scout Car from the front, outdoors on a city street with other military vehicles. It has a wide cylindrical object mounted on front beneath the radiator grill. A coil of barbed wire and coiled rope are also mounted.
An M3 Scout Car showing the wide unditching roller at the front

An unditching roller is a device fitted to the front of military vehicles, such as the M3 Scout Car[1] and the M3 half-track, for the purpose of preventing the vehicle from getting stuck in an obstacle, such as a ditch.[2] The C4 based Citroën P17C Kégresse from 1931 also had such a roller.[3]

Upon entering a ditch, the roller prevents the front of the vehicle from digging into the opposite face of the ditch; instead, the roller acts as a wide wheel enabling the front to climb out of the ditch more easily.[2]

See also

References

  1. ^ "M3A1 Scout Car". Heritage Flight Museum.
  2. ^ a b Zaloga 2018, p. 44.
  3. ^ Ellis 1970, p. 161.

Bibliography

  • Ellis, Chris (1970). Military Transport of World War I: including Vintage Vehicles and Post War Models. Poole: Blandford Press. ISBN 0-7137-0701-1.
  • Zaloga, Steven J. (2006). Early US Armor: Armored Cars 1915–40. New Vanguard 254. Osprey Publishing. ISBN 9781472825148.
  • Wikimedia Commons logo Media related to Unditching roller at Wikimedia Commons
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