73
Bruce in the Peg
Modeling BNSF and Milwaukee Road in SW Wisconsin
QUOTE: Originally posted by jrbernier Joe, Here is the difference: NW2 - Was introduced in 1939(or close to it). First production 1000 hp switcher using the new '567' powerplant. Was kept in production through 1949, and was replaced by the SW7. Spotting features are the 1/2 size radiator grill on the front and large 'curved' glass windows on the ends of the cab. Early models have a 'two step' taper on the long hood in front of the cab. The BLI model is a 'late' NW2 with a 'single' taper in front of the cab. SW7 - Follow-on to the NW2, stayed in production until 1954(replaced by the SW9). This model used a newer model of the '567' engine and sported 1200 hp. Spotting features are a 'full size' radiator grill on the front, rather than the '1/2 size' grill of the NW2. Also features the 'single tape' hood in front of the cab, and smaller 'square' windows in the front of the cab. James, The SW/NW and SC/NC terms only apply to the older 'Winton' 201-A powered engines(late 30's) and the SW1 & NW2-3-5 engines. By 1949, EMD dropped the HP based clasification and everything became a 'SW'(for switcher). The basic 'wasp waist' carbody would become an EMD icon for years.... Jim Bernier