Turbines and Tenders Now Available! Just in: Museum Quality and Rivet Counter HO Scale Union Pacific GTEL 8500 Horsepower “Big Blow” Turbines! Click here to see the in-stock models: http://bit.ly/HOBigBlowTurbine These are the hallmarks of the Union Pacific Railroad’s unique GTEL 8500 Horsepower Turbine locomotives. Often called “Big Blows” because of their deafening noise, they roamed the less populated landscape between Council Bluffs, IA and Ogden, UT. 30 three-unit sets were built between 19