O-M Rio Grande's Rotary Plow Part 1
Railroad Model Craftsman 1977-07 pg. 48 Scale: On3 Category: "M.O.W. Equipment"
Prototype photos of this machine are included in the article. Many close-up detail photos. Full-scale On3 fold-out drawing of all side (including top and bottom) are in the article.
O-M Rio Grande's Rotary Plow Part 2
Railroad Model Craftsman 1977-08 pg. 52 Scale: (none) Category: "M.O.W. Equipment"
The Denver & Rio Grande rotary plow, O-M, is basically a boxcar with a locomotive stuffed inside. This last installment covers the tender and auxiliary water car. The article contains prototype photos, scale drawings, weathering drawings, and close-up detail photos of the prototype.