This is a model of an EMD F7 B unit diesel locomotive in an Atchison Topeka & Santa Fe Railroad version. The paint scheme and lettering are prototypical for Era III. The locomotive body is partially chrome-plated to show the original locomotive's typical stainless steel look. The unit has a built-in speaker that can be powered from a 20581 or 20583 A unit by means of a cable that is included.

Length over the couplers 60 cm / 23-5/8".

The A units to go with this locomotive are available under item numbers 20581 and 20583. A typical Era III express train, such as the famous "Super Chief", can be made with the new Santa Fe cars that are also available.