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Clark 290M Tractor, Wheeled

The Clark 290M Tractor, Wheeled is a 4x4 articulating tractor with a tilt dozer blade and rear connections for a 20-yard scraper bowl. The Clark 290M was used in Vietnam, for road construction, defensive fortifications, and general construction activity. The tractor was also used as a prime mover or recovery vehicle due to its heavy rated drawbar pull capacity of 34,650 to 38,150 pounds.

The Clark 290M was powered by a Cummins 380hp, 855 cid six cylinder diesel engine (Model NT380) mated to the Clark four speed powershift transmission (Model 8420). The wheels were mounted on 70,500 pound capacity Clark planetary axles.

The Clark 290M was replaced in the U.S. military by the Caterpillar 830M or 830MB, a very similar wheeled tractor.

Clark 290M Tractor, Wheeled photographed 29 March 2006 in Texas.  Photo courtesy of Bob Pettit
Clark 290M Tractor, Wheeled photographed 29 March 2006 in Texas. Photo courtesy of Bob Pettit.

Today in WW II: 25 Nov 1941 Germans reach outskirts of Moscow but cannot sustain attack; Germans hold positions until Dec 5.  More 
25 Nov 1942 British SOE team and anti-Nazi Greeks blow up the Gorgopotamos railway viaduct, the first significant sabotage in occupied Europe [Operation Harling, Nov 25-26].
25 Nov 1943 Battle of Cape St. George between Buka and New Ireland, off Papua New Guinea, fought by US and Japanese naval forces.
25 Nov 1944 In Philippine waters, USS Intrepid [CV-11] hit by two Japanese kamikaze planes within five minute period, killing 69 and seriously wounding 85 of the crew.
25 Nov 1944 Most deadly German V-2 rocket attack in Britain happened at New Cross Road, destroying a Woolworths store and surrounding area, killing 160 people, seriously injuring 120 others.
25 Nov 1944 Japanese occupy Nanning, a transportation hub in south China, for the second time, in final stages of the Ichi-Go offensive.
25 Nov 1944 Last American airborne troops withdraw from unsuccessful Operation Market Garden positions.
Visit the Olive-Drab.com World War II Timeline for day-by-day events 1939-1945! See also WW2 Books.

Clark 290M Tractor, Wheeled, Diesel Engine Driven

The full nomenclature for the Clark 290M was Tractor, Wheeled, Industrial: Diesel Driven: Med DBP: W/Dozer, W/Backrip Scarifier, w/Drawbar, Trailer Pintle and Hydraulic Scraper Controls (Clark Model 290M) w/ROPS. The 290M was also called the Clark-Michigan 290M.

Manuals for the Clark 290M are numbered TM 5-2420-206-xx where the xx represents the maintenance level.

A pair of U.S. Army Clark 290M Tractors with scraper preparing railroad right of way, Vietnam
A pair of U.S. Army Clark 290M Tractors with scraper preparing railroad right of way, Vietnam.

Clark 290M Tractor, Wheeled photographed 29 March 2006 in Texas. Text stenciled above the white star reads: CAUTION: Remove locks at base before moving tractor with scraper attached. Photo courtesy of Bob Pettit
Clark 290M Tractor, Wheeled photographed 29 March 2006 in Texas. Text stenciled above the white star reads: "CAUTION: Remove locks at base before moving tractor with scraper attached." Photo courtesy of Bob Pettit.

Clark 290M Tractor, Wheeled photographed 29 March 2006 in Texas.  Photo courtesy of Bob Pettit
Clark 290M Tractor, Wheeled photographed 29 March 2006 in Texas. Photo courtesy of Bob Pettit.

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