Athearn HO F7B with DCC & Sound SP Freight #8199

Athearn HO F7B with DCC & Sound SP Freight #8199 Overview

The F-units were the most successful “first generation” road (main line) diesel locomotives in North America, and were largely responsible for superseding steam locomotives in road freight service. Before this, diesel units were mostly only built as switcher locomotives, and only used in rail yards.