Opposed pistons have had good success in marine and railroad applications.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Fairbanks_Morse_38_8-1&#x2F;8_diesel_engine" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Fairbanks_Morse_38_8-1&#x2F;8_diese...</a>