RE: UP "Giant of the West" - EMD DDA40X Centennial, UP 6936
Yes, It is 98ft - 2in long... hence 40 5/8 in. over the pulling faces. ( 1/29 )
The designed curved was for a 10ft. radius min.. so far so good...
The completed trucks are a full 4 axle, fully flanged wheel set, all 4 axles driven by two motors....for each motor block!!
The individual trucks actually will get around a 60" radius curve, but installed on the frame, the running unit - having run a full test lap at Dennis Sirrine's in Mesa, AZ, which has a few 10ft. radius curves,... the wheels "squealed" on two curves. So it is "right there". I will be doing some fine tuning to get it to run smoothly around a bit smaller curve, just under 10 ft.