The gondola railcar with the J311 designation is one of the most common types of railcars found in the US. It is used to primarily haul coal. The J311 railcar may well be the most detailed and accurate gondola car available on the net. The model is accurate to nuts and bolts and has been built with great precision, using blueprints from the original manufacturer.

The model is fully UVW unwrapped and the zip file contains a weathered set of textures as well as a clean looking set of textures and a re-skin kit.
The model has 7 custom textures:
4096*4096 body skin
4096*4096 body specular map
2048*1024 body inside skin
2048*1024 body inside specular map
512*512 coal texture
2048*2048 truck skin
128*1024 wheel thread mask
all textures are in JPEG format.

Some parts of the model, like the wheels and the bogey are subdivided and have a Turbosmooth modifier applied with their name starting with SDM. The name of the parts that cant be subdivided starts with PLY. The poly count depends on the subdivision level and the as rendered the product, with two Turbosmooth iterations applied, has 1400216 polys and 738413 verts.

The model has two versions one that uses only standard max materials and the one depicted that uses V-ray materials.
The model also:
- Opens and renders without errors
- Is to real-world scale
- Is centered at origin

The scene was rendered with V-ray 3.0, render scene, lighting, cameras not included.