| Designation | F2 | F3
Phase1 |
F3
Phase 2 Early |
F3
Phase 2 Late |
F3
Phase 3 |
F3
Phase 4 |
"F5" |
| Dates | Jul 46 to
Dec 46 |
Nov-Dec 46>> | Feb-May 47>> | Dec 47-Apr 48>> | Mar-Jun 48>> | Aug-Nov 48>> | October 48
to Feb 49 |
| Radiator Fans | High, flat-top 36" | Low-pan-top 36" | |||||
| Top-third panel | Chicken Wire in openings only | Full Chicken wire at top third panel | Horizontal Stainless Steel Grille | ||||
| Rear vent opening | Short | Long | |||||
| Center-third panel | Three equally-spaced portholes | Chicken wire between two portholes covering 4 rectangular openings | 4 horizontal louvers between two portholes | ||||
| Electrical | Same as FT | D17 traction motors | D27 traction motors
w/heavier cables |
||||
| Number Boards | Same as FT | Large, mounted on nose | |||||
| Original [your road name] Numbers & Liveries | numbers | numbers | numbers | numbers | numbers | numbers | numbers |
