The H51A class of covered hoppers were built by PC at their Holidaysburg Car Shops in 1968 as PC 887287-887336. Cars then became CR 887287-887336. Many cars were sold the leasing companies such as AEX and NRLX and can be seen across the country. Cars are rated at 100 tons, 4635 cuft, & are 55ft 6in long.
