Take a Ride on the Reading with the: Reading Company Technical & Historical Society http://www.readingrailroad.org/
QUOTE: Originally posted by wjstix EMD's F-units were the FT, F-3, F-7, and F-9. The F-7 was the current F-unit (think it was made 1948-54) in 1949 and since the new GP diesel had the same horsepower, same engine etc. as the F-7, EMD called the first GP model the GP-7 to match.
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Building the CPR Kootenay division in N scale, blog here: http://kootenaymodelrailway.wordpress.com/
Modeling the Reading Railroad in the 1950's
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Modeling BNSF and Milwaukee Road in SW Wisconsin