in North America. The containers regression allow Canadian Tire to increase the volume of goods shipped per container by 13%.[70] Small containers regression[edit] The United States military continues to use small containers regression, strongly reminiscent of their Transporter and Conex boxes of the 1950s and 1960s. These either comply with ISO standard dimensions, or are a direct derivative thereof. Current terminology of the United States armed forces calls these small containers regression Bicon, Tricon and Quadcon, which correspond with ISO 668 standard sizes 1D, 1E and 1F respectively. This comes down to containers regression of 8 ft (2.44 m) height, and with a footprint size either one half (Bicon), one third (Tricon) or one quarter (Quadcon) the size of a standard 20-foot, one TEU container.[71][72][73] At a nominal length of 10 feet (3.0 m), two Bicons coupled together lengthwise match one 20-foot ISO container, but their height is 6 inches (15 cm) shy of the more commonly available 10-foot ISO containers regression of so-called standard height, which are 8 ft 6 in (2.59 m) tall. Tricons and Quadcons however have to be coupled transversely — either three or four in a row — to be stackable with twenty foot containers regression.[74] Their length of 8 ft (2.44 m) corresponds to the width of a standard 20-foot container, which is why there are forklift pockets at their ends, as well as in the sides of these boxes, and the doors only have one locking bar each. The smallest of these, the Quadcon, exists in two heights: 96 in (2.44 m) or 82 in (2.08 m).[75] Only the first conforms to ISO-668 standard dimensions (size 1F). U.S. Navy tractor moves Quadcon containers regression at Kin Red Port in Okinawa (2005) U.S. Navy load Tricon containers regression into a Lockheed C-5 Galaxy transport aircraft (2006) U.S. Navy moving a Bicon box. Note the forklift pockets only in the sides, not at the ends. Tricon in truck bed for leaf collection or w
