These F-7 locomotives are painted UP Yellow with red horizontal stripes flanking the yellow bands. The roofs and ends are painted gray. Lettering is red and outlined in black. These exciting releases represent the livery of the multi-colored Union Pacific F-Series locomotives. Equipped with Blomberg trucks, many of these 1951 UP units joined the immense F3 fleet and some of the F3s were improved to F7 standards. The UP F7 fleet worked for only 10 to 11 years before they were traded-in for GP30s and GP35/DD35s.