RTTX Intermodal flatcar carrying 3 20' international containers on chassis. Two Crowley and one TransAmerica containers. Vehicle manufacturers required that parts must move on chassis for better ride quality.
85' cars that were made for Twin 35' trailers when they were longest trailers permitted on the highways. The Spine cars are Skeleton cars for trailers but eventually some were container only and some were trailer or container cars. When double stack container cars were introduced the conventional car comparison was the TTAX/TTTWX type 89'4" flatcar that could carry 2 40' international containers.
TTEX conventional intermodal flatcar carrying 3 40' International Containers on Chassis. APL 40' International Container on chassis. An unproductive use of TTEX railcars meant for long trailers. Early days of double stack container cars where there was not enough capacity for international containers.
The Intermodal Railcar Fleet prior to the Double Stack Revolution.A comparison of the Intermodal fleet in 1988 compared to 2024 shows the impact of the double stack container car revolution. In 1988 conventional cars (AAR code P) represented 89% of the fleet whereas in 2024 they represented less than one half of one percent of the fleet. In 1988 the nascent double stack container car (AAR code S
Table 2 shows the pre double stack intermodal railcar fleet loading capability by car type. Namely, the loading capability for trailers and containers by length and width. Trailer capability for 28', 40', 45', 48' and 53' trailers. Container capability for 20', 40', 45', 48' and 53' containers. Trailer and container width for 96" and 102".
Table 1 shows the pre double stack intermodal railcar fleet by car type with tare weight, length, Deck type, Guide Rail type, Bridgeplate type and Hitch type.
TTCX 60' Conventional Container Only Flatcar Carrying one 20' and one 40' International Containers on Bellies. One container is a TransAmerica container.
Table 2 shows the pre double stack intermodal railcar fleet loading capability by car type. Namely, the loading capability for trailers and containers by length and width. Trailer capability for 28', 40', 45', 48' and 53' trailers. Container capability for 20', 40', 45', 48' and 53' containers. Trailer and container width for 96" and 102".
A boxcar converted to Intermodal Service known as "lead sleds" due to their heavy tare weight. NS car carrying an Evergreen 40' international container on a chassis. Before stacks American Honda would require its parts containers going to inland assembly plants move on chassis for better ride quality.
A boxcar converted to Intermodal Service know as "lead sleds" due to their heavy tare weight. NS car carrying a container on its belly. Some railroads converted boxcars in times of severe car shortages must to the chagrin of other railroads that understood the economics.
SOO Line conventional 89' intermodal flatcar carrying one NOL, Neptune Orient Line, 20' international container and one 40' TransAmerica international container on their bellies. SOO Line is owned by CPKC now. NOL in 1984 was a small Singapore ocean carrier that bought APL, American President Lines.
Ocean carriers involved with double stack container cars and train service. Sea-Land using SPRR double stack container cars and SPRR service in 1981. Then Sea-Land's own Twin Stack double stack container cars and train service from Tacoma to Chicago and Little Ferry began in 1985. APL test train using SPRR double stack container cars from Valla, CA to Chicago in 1983. APL buys its own double