I saw Randy (OSUguy) ask about E units in another thread, so I thought I'd start a new thread instead of getting off-topic in the other one. Please, feel free to add to or correct what I have. EA/B 6 A-B sets built for B&O (1 sold to the Alton), 2 V12 Winton 201A engines, 1800 hp E1A/B 3 A-B sets and 5 single A units built for AT&SF, 2 V12 Winton 201A engines, 1800 hp, nearly identical to B&O EA's E2A/B 2 A-B-B sets built, one owned by UP/C&NW for City of Los Angeles service, the other owned by SP/UP/C&NW for City of San Francisco service, 2 V12 Winton 201A engines, 1800 hp, bulbous nose to better match earlier streamliners E3A/B 15 A units and 4 B units built, 2 V12 567 engines, 2000 hp, similar to EA/E1 in appearance E4A/B 14 A units and 5 B units built for SAL, 2 V12 567 engines, 2000 hp, nearly identical to E3 except for tilt-out nose door E5A/B 9 A units and 7 B units built for CB&Q/C&S/FW&D, 2 V12 567 engines, 2000 hp, same basic design as E3 except: stainless steel sides, fluting along bottom panel, shorter side windows to accomodate a letterboard E6A/B 113 units built, last pre-WWII E unit, 2 V12 567 engines, 2000 hp, different water tank arrangement from E3, otherwise identical All pre-WWII E units (except E2's) had sharply slanted noses, giving them a very racy look. E7A/B 404 A units and 75 B units built, 2 V12 567A engines, 2000 hp, introduced the EMD "bulldog" nose to passenger locos, many internal improvements originally developed on the FT's E8A/B 454 A units and 35 B units built, 2 V12 567B engines, 2250 hp, 4 more or less evenly spaced portholes replaced the side windows of the E7, new grills along the full length of the upper carbody, rearranged radiator, engine and generator placement, many other internal improvements E9A/B 93 A units and 39 B units built, 2 V12 567C engines, 2400 hp, externally identical to E8 Dwight
The E8A/E9A spotting feature was just covered in a recent issue of Model Railroader: one has a flat lens and rim over the headlight and the other has a recessed lens with a rolled rim (minor difference, but a spotting feature). I'm going on a fan trip in a few weeks with and E9--perhaps, then I'll remember which is which.
