The Q's first Hi-Cube Center-Flow covered hoppers joined the roster in 1966, 600 4,600 cubic foot triple hopper grain cars classed LO-8 and numbered CB&Q 86200 - 86699, and FW&D 3051 - 3150. All LO-8's were divided into three compartments and featured three-section trough loading hatches. All but Q 86690 - 86699 had Enterprise gravity outlets, the last 10 cars were equipped with ACF pneumatic outlets. The cars were built at AC&F's Huntington, West Virginia plant starting in March 1966.

The Q's first Hi-Cube Center-Flow covered hoppers joined the roster in 1966, 600 4,600 cubic foot triple hopper grain cars classed LO-8 and numbered CB&Q 86200 - 86699, and FW&D 3051 - 3150. All LO-8's were divided into three compartments and featured three-section trough loading hatches. All but Q 86690 - 86699 had Enterprise gravity outlets, the last 10 cars were equipped with ACF pneumatic outlets. The cars were built at AC&F's Huntington, West Virginia plant starting in March 1966.

Production of Airslide cars began in 1954 and the Q acquired its first 100 of the 2,600 cubic-foot cars from General American in December of that year: Class LO-1's 87000 - 87099.. The cars were anything but colorful, with gray bodies, black plain bearing trucks, black lettering, and small black and white heralds on the car side between posts. The "Everywhere West" slogan appeared on both sides. Another 100 nearly identical cars ( but riding on No. 93 roller bearing A-3 Ride Control trucks ) came in 1955, numbered 87100 - 87199 and classed LO-1A. These first 200 Airslides ( generally used for flour loading ) featured outside posts which were open at the bottom. Vibrator castings, welded to the car sides, two per side, are characteristics of Airslides. These cars were built at GATC's East Chicago plant, and eventually were renumbered into the BN 400500 - 400699 number series.

Production of Airslide cars began in 1954 and the Q acquired its first 100 of the 2,600 cubic-foot cars from General American in December of that year: Class LO-1's 87000 - 87099. Another 100 nearly identical cars ( but riding on No. 93 roller bearing A-3 Ride Control trucks ) came in 1955, numbered 87100 - 87199 and classed LO-1A. Fifty-two more of the 29-foot long, 2,600 cubic-foot capacity Airslides joined the roster in 1957 as CB&Q Class LO-2 and numbered 87200 - 87251. The next batch of Airslides - 75 more 50 tonners, classed LO-1B and numbered 87300 - 87373 were delivered in 1958, the year the Q adopted its new image, and consequently they came in the new painting/lettering scheme: gray body, black trucks and underbody ( meaning the hopper slope sheets and discharge outlets were now black instead of gray, though the bolsters and draft gear remained gray ), red lettering and a large Scothlite herald. Note the cross stiffener between posts protruding above and below the herald. These cars, like all Q Airslides, had a baked-on enamel lining.

Production of Airslide cars began in 1954 and the Q acquired its first 100 of the 2,600 cubic-foot cars from General American in December of that year: Class LO-1's 87000 - 87099. Another 100 nearly identical cars ( but riding on No. 93 roller bearing A-3 Ride Control trucks ) came in 1955, numbered 87100 - 87199 and classed LO-1A. Fifty-two more of the 29-foot long, 2,600 cubic-foot capacity Airslides joined the roster in 1957 as CB&Q Class LO-2 and numbered 87200 - 87251. The next batch of Airslides - 75 more 50 tonners, classed LO-1B and numbered 87300 - 87373 were delivered in 1958, the year the Q adopted its new image, and consequently they came in the new painting/lettering scheme: gray body, black trucks and underbody ( meaning the hopper slope sheets and discharge outlets were now black instead of gray, though the bolsters and draft gear remained gray ), red lettering and a large Scothlite herald. Note the cross stiffener between posts protruding above and below the herald. These cars, like all Q Airslides, had a baked-on enamel lining. Unlike the earlier LO-1 and LO-2 classes which had open bottoms on the outside vertical posts, the LO-1B series posts had closed bottoms. The Class LO-1B's were eventually renumbered into the BN 400800 - 401139 number series.

Production of Airslide cars began in 1954 and the Q acquired its first 100 of the 2,600 cubic-foot cars from General American in December of that year: Class LO-1's 87000 - 87099. Another 100 nearly identical cars ( but riding on No. 93 roller bearing A-3 Ride Control trucks ) came in 1955, numbered 87100 - 87199 and classed LO-1A. Fifty-two more of the 29-foot long, 2,600 cubic-foot capacity Airslides joined the roster in 1957 as CB&Q Class LO-2 and numbered 87200 - 87251. The next batch of Airslides - 75 more 50 tonners, classed LO-1B and numbered 87300 - 87373 were delivered in 1958, the year the Q adopted its new image, and consequently they came in the new painting/lettering scheme: gray body, black trucks and underbody ( meaning the hopper slope sheets and discharge outlets were now black instead of gray, though the bolsters and draft gear remained gray ), red lettering and a large Scothlite herald. Note the cross stiffener between posts protruding above and below the herald. These cars, like all Q Airslides, had a baked-on enamel lining. Unlike the earlier LO-1 and LO-2 classes which had open bottoms on the outside vertical posts, the LO-1B series posts had closed bottoms. The Class LO-1B's were eventually renumbered into the BN 400800 - 401139 number series.