H-10-44 281 and Brake Sled X82 switching at Tulsa, Oklahoma in December 1960 (Al Chione).

For an explanation of the brake sled, we turn to Frisco.org resident expert Karl Brand who provides the following information: There were three brake sleds used at Cherokee Yard in Tulsa, Oklahoma. They were made from the tenders of the 1500 or 4100 class steam locomotives. The “hump” at Cherokee Yard was all downhill, unlike the hump at Tennessee Yard where the hump engines had to shove up and over the hump. Since the cut of cars being shoved down the hill at Cherokee Yard had no train air, the brake sled added weight and brakes to keep things from running away. It’s why the SD38-2s assigned to Cherokee Yard had dynamic brakes, and the SD38-2s assigned to Tennessee Yard did not.