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Big Wheels You can tell from previous images that Union Pacific 844 is a very large steam locomotive owned by Union Pacific Railroad. But until you get down beside it, you can’t appreciate how large it really is. The main wheels are as large as a person. I remember standing beside it wondering how much each of these wheels must have weighed, then how much power the locomotive must create just to turn those wheels, much less pull the train.
SAN FRANCISCO, CA - OCTOBER 7: P-51 Mustang World War II and modern F-16C Fighting Falcon and USAF F-22 Raptor aircrafts perform heritage flight during Fleet Week in San Francisco, CA on October 7, 2012
SAN FRANCISCO, CA - OCTOBER 6: P-51 Mustang World War II and modern F-16C Fighting Falcon and USAF F-22 Raptor aircrafts perform heritage flight during Fleet Week in San Francisco, CA on October 6, 2012
SAN FRANCISCO, CA - OCTOBER 7: P-51 Mustang World War II and modern F-16C Fighting Falcon and USAF F-22 Raptor aircrafts perform heritage flight during Fleet Week in San Francisco, CA on October 7, 2012
SAN FRANCISCO, CA - OCTOBER 7: P-51 Mustang World War II and modern F-16C Fighting Falcon and USAF F-22 Raptor aircrafts perform heritage flight during Fleet Week in San Francisco, CA on October 7, 2012
SAN FRANCISCO, CA - OCTOBER 6: P-51 Mustang World War II and modern F-16C Fighting Falcon and USAF F-22 Raptor aircrafts perform heritage flight during Fleet Week in San Francisco, CA on October 6, 2012
See photo in original gallery.
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