P62NK Class Boxcar
The P62NK is an improved standard P62 with 'N' (nai hou gang) refering to the body paneling differences and 'K' (kuai) for the high speed bogies. They share the double doors and external ribs as the standard P62, thousands have been built but production has now ceased with the P64 taking over (the main external difference with the P64 being the curved roof).
This is CMR's second freight car, after the recently released and succesful P62K. As these cars are identical apart from some external differences, much of the information is shared with the P62K box car review. (Differences about the two variants can be seen above in 'prototype information') They were initally sold in four-packs, but released a couple of years later as individual units. Four bureaus have been produced - Guangzhou, Shanghai, Shanghai North & Beijing (although there is nothing to tell which bureau they belong to apart from on the packaging!)
The cars come in individual two piece plastic clam shells. The cardboard outer box is very thin cardboard. it works well enough, but I can imagine these could be very easily damaged in the mail or in long term storage. If using the original boxes for storage, make sure the brake wheels are to the right of the box or you will damage some of the undercarriage.
Details are really very good - unfortunately the good bits are underneath the car! Nevertheless they feature etched metal walkways, vertical brake wheels, air hoses and ultra fine uncoupling rods. On the downside, some of the vents have been glued on lopsided. They also have pretty chunky ladders, although these don't stand out so much due to the color of the car. The side doors are non-functional.
The cars I have run very freely and are relatively heavy for freight cars which should keep inertia helping the train along - although I'm not sure if that will effect long trains or gradients.
Plastic knuckle couplers - while these ones seem to work quite well, however as a genereal rule I simply don't trust anything apart from KD couplers. They will be very shortly converted to KD's - use medium shank whisker couplers with scale heads (158).