Frisco heavy 2-8-2 By Angela Cotey | December 4, 2014 | Last updated on August 7, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates The Frisco’s 4200-series Mikados of 1930 were among the most powerful 2-8-2s on any railroad. They were rated at 68,500 lbs. tractive effort — 78,100 lbs. with booster — and could wheel fast freights at 50 mph. Frank E. Ardrey photo Comments+ You must login to submit a comment