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EMD
F UNIT PHASE IDENTIFICATION |
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Something
that is often confusing to railfans and model railroaders is how to
distinguish EMD F unit phases. Listed below is a summary of what I
have gleaned from various sources. What I believe are the generally
accepted, main identifying features are highlighted: |
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FTA
- four portholes, (if
dynamic brakes rectangular boxes on top in front of, behind and along side
the cooling fans). |
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F2A
& F3A ph 1 - three
portholes, pointed overhang on roof at rear, (if dynamic
brakes two rectangular grilles on top behind cab). |
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F3A
ph 2 early - two portholes, chicken
wire screen from cab windows to rear of unit and between portholes, high
shrouds on fans, pointed overhang on roof at rear, (if
dynamic brakes two rectangular grilles on top behind cab). |
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F3A
ph 2 late - two portholes, chicken
wire screen from cab windows to rear of unit and between portholes,
low shrouds on fans, pointed overhang on roof at rear, (if
dynamic brakes two rectangular grilles on top behind cab). |
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F3A
ph3 - two portholes, chicken
wire screen from cab windows to rear of unit, louvered vents between
portholes, low shrouds on fans, pointed overhang on roof at rear,
(if dynamic brakes two rectangular grilles on top behind cab). |
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F3A
ph4 - two portholes, horizontal
grille from cab windows to rear of unit, louvered vents between
portholes, low shrouds on fans, pointed overhang on roof at rear,
(if dynamic brakes two rectangular grilles on top behind cab). |
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F7A
ph1 early - two portholes, horizontal
grille from cab windows to rear of unit, louvered vents between
portholes, low shrouds on fans, pointed overhang on roof at rear,
(if dynamic brakes a 5th fan on top same size as cooling fans). |
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7FA
ph1 late - two portholes, horizontal
grille from cab windows to rear of unit, louvered vents between
portholes, low shrouds on fans, no overhang on roof at rear,
(if dynamic brakes a 5th fan on top same size as cooling
fans). |
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F7A
ph 2 - two portholes, vertical
slit grille from cab windows to rear of unit, vertical
slit vents between portholes, low shrouds on fans, no overhang
on roof at rear, (if dynamic brakes a larger 5th fan on top). |
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F9A
- two portholes, vertical slit grille from cab windows
to rear of unit, vertical slit vents between portholes,
portholes closer together and extra vertical slit vent
between portholes and cab door, (if dynamic brakes a
larger 5th fan on top). |
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FTB - four
portholes; some FTBs have 5th porthole on one side indicating optional hostler
controls, (if
dynamic brakes rectangular boxes on top in front of, behind and along side
the cooling fans). |
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F2B
& F3B ph 1 - three portholes, chicken
wire screen over grille openings, small grille openings
at end on sides, pointed overhang on roof at rear, (if
dynamic brakes two rectangular grilles on top). |
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F3B
ph 2 early - three portholes, chicken
wire screen over grille openings, larger grille opening at end on sides,
high shrouds on fans, pointed overhang on roof at rear, (if
dynamic brakes two rectangular grilles on top). |
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F3B
ph 2 late & F3B ph3 - three
portholes, chicken wire screen over grille openings, larger
grille opening at end on sides, low shrouds on fans,
pointed overhang on roof at rear, (if dynamic brakes two
rectangular grilles on top). |
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F3B
ph4 - three portholes, horizontal
grille, low shrouds on fans, pointed overhang on roof at
rear, (if dynamic brakes two rectangular grilles on top). |
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F7B
ph1 early - three portholes, horizontal
grille, low shrouds on fans, pointed overhang on roof at
rear, (if dynamic brakes a 5th fan on top same size
as cooling fans). |
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F7B
ph1 late - three portholes, horizontal
grille, low shrouds on fans, no overhang on roof at
rear, (if dynamic brakes a 5th fan on top same size
as cooling fans). |
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F7B
ph 2 & F9B - three portholes, vertical
slit grille, (if dynamic brakes a larger 5th
fan on top). |
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