LeTourneau Overland Trains used a variety of American made parts and materials. Companies used their contributions to help America fight and win wars. Advertisements like the one here helped to bolster their product lines. After all, if the United States military used their products, why wouldn’t you? The advertisement below is from a news release of the National Carbon Corporation, a division of Union Carbide Corporation.
The last Overland Train, the Overland Mark II (Mk2), consisted of 13 cars – the leading Control Car, 10 Cargo Cars, and two trailing Power Cars. Each of the 54 wheels had its own wheel motor that used National Carbon Company brushes. A total of 668 brushes were needed to complete the Mk2 – 504 brushes were used in the traction motors within the wheels, 56 large brushes for the DC generators, 12 for the exciters, and 96 round items for AC generator contacts.