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CHURCHILL AND THE TANK (2)...quite easy in a short time to fit up a number of steamtractors with small armoured shelters, in which men andmachine guns could be placed, which would be bulletproof.Used at night, they would not be affected byartillery fire to any extent. The caterpillar system wouldenable trenches to be crossed quite easily, and the weightof the machine would destroy all barbed-wire entanglements.”3The writer was <strong>Winston</strong> <strong>Churchill</strong>. His lettermarked the first step toward the practical evolution ofthe tank in World War I.The caterpillar track was invented in 1770 byRichard Edgeworth, an Englishman. During theCrimean War (1853-56) his countryman, James Boydell,constructed a few steam-powered tractors based on thisdesign, which unfortunately were not ready in time forthe Crimea, though there were plans to use them. Thedevelopment of the tank remained dormant until thearrival of the internal combustion engine, first developedin Germany by Gottlieb Daimler in 1885. 4In 1904, Benjamin Holt of Stockton, California,became convinced that a steam traction engine withextended wheels was not practical in farming. Holt hadbegun to develop and produce steam-powered wheeltypetractors in the mid 1880s. He had turned to thepossibility of using a track to replace the wheels becauseof its superior weight-bearing surface. Holt had gone toEngland in 1903 to investigate developments in crawlertractors. He had also sent some of his own companyofficials to view a track-laying design by Alvin O.Lombard of Waterville, Maine, who had developed atracked log hauler on skids for use in the winter. Aftergathering as much information as possible, Holt beganto perfect his own design on track-laying tractors. 5On Thanksgiving Day, 24 November 1904, Holtsuccessfully tested his first track-type tractor close to theStockton site of Holt Manufacturing Company. The testtractor had a refitted steam traction engine. The wheelshad been replaced with two track frames 30 inches high,42 inches wide and nine feet long. The tracks fitted toeach frame were constructed of 3x4-inch wooden slats.This first crawler was able to operate on ground too softfor men and horses, because of its greater weight bearingsurface area. After numerous tests, regular productionmodels of the Holt track-layer were introduced in 1906,priced at $5500 each. 6Although successful in bearing weight in softground, these early track layers were cumbersome andexpensive to operate, and depended on horses to bringwater and fuel to feed the boilers and fire boxes. In 1908Holt brought out a gasoline-powered crawler which inmotion had the appearance of a caterpillar. The famousCaterpillar trademark was born through Holt’s efforts. 7Across the Atlantic in 1901, British inventorFrederick Simms had produceda design of what hecalled a motor-war car,with a Daimler engine, abulletproof shell and twomaxim guns on revolvingturrets. The British WarOffice rejected Simm’sdesign and showed nointerest in similarschemes.By the outbreak ofthe First World War, aWisconsin company producedthe Killen-StraitArmoured Tractor. Itstracks consisted of a continuousseries of steellinks, joined together withsteel pins. In June 1915 aKillen-Strait with a Britisharmored car body plonkedon top was tested at Wormwood Scrubs before <strong>Winston</strong><strong>Churchill</strong> and David Lloyd George, who watched it cutthrough barbed wire entanglements. (See photo, previousarticle.) <strong>Churchill</strong> had just fallen from power, havingbeen relieved as First Lord of the Admiralty on 28 Mayover the Dardanelles operation. It is possible that theDardanelles, itself conceived as an alternative to trenchwarfare, weighed on <strong>Churchill</strong>’s mind as he observedanother possible solution to the slaughter in Europe. 8Holt’s Caterpillar tractor had by then becomefamous among both warring sides for its design andworkability, and a Holt Agency had been established inAustria by a Hungarian, Leo Steiner. In 1912 theAustrian military was attracted to Holt’s design when itproved superior in hauling heavy artillery. In 1913Steiner was ordered to procure as many Holt tractors aspossible but when war broke out with England in 1914,the pro-British Holt refused to fill the orders. 9When the British military became interested in thepossibilities of crawler traction on the battlefield, theytoo turned to Holt. As early as September 1914, Holtengineers were sent to England, while the British WarDepartment sent an officer to Holt’s newly opened EastPeoria, Illinois factory. One Briton greatly influenced byHolt’s Caterpillar was Col. Ernest Swinton, who had theidea to build an armed and armored machine gundestroyer. 10 With the help of Col. Maurice Hankey,then Secretary of the War Cabinet, <strong>Churchill</strong> at theAdmiralty was persuaded to set up a “Landships Committee”to look at the possibilities of building a new warmachine. 11 (Refer to David Fletcher’s preceding article.)The Admiralty Landships Committee ultimately commissionedLt. W.G. Wilson of the Naval Air Service andPROGENITOR: A Talbot armored carof the Royal Naval Air Service onstandby during <strong>Churchill</strong>’s visit toOstend in 1914 (Tank Museum)FINEST HOUR 135 / 46

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