"PRR-Talk"'s own Greg Martin worked with Athearn on the design and production of their Genesis EMD F7 units. His own superdetailed units were featured in Athearn's ads for the product, showing the units pulling a heavy freight up the Eastern Slope around Horseshoe Curve.

Greg's models are now on display at the Altoona Railroader's Memorial Museum.

Here is the list of parts Greg used:

CAL SCALE
190-402  F-UNIT ANTENNA MAST      1-PACK (PER A-Unit)

DETAIL ASSOCIATES
SY-2215 LADDER GRABS E/F UNITS    1 PACK
SY-2202 DROP GRABS                       1 PACK
SY-6504 CABOOSE GRABS                  1 PACK

DETAILS WEST
BL-16 BACK-UP LIGHT                       1-PACK PER UNIT

MDC/ROUNDHOUSE
#2972 DUMMY KNUCKLE COUPLES      1 PACK

MV PRODUCTS
LS-19    HEADLIGHT LENSES (BACK-UP LIGHT) 1 PACK

UTAH PACIFIC 
755-92 PLASTIC ANTENNA  MAST       1 PACK
755-61 SPEED RECORDER                   1 PACK (PER A-UNIT)

. 010-INCH BRASS OR STEEL WIRE (Detail Assoc.)

. 018-INCH BRASS OR COATED GALVANIZED FLORAL WIRE (28-GA.)

. 019-INCH BRASS WIRE (Detail Assoc.)

The rear lift rings were scratch build from . 015-inch styrene strip and
1/8-inch Evergreen plastic tube stock.  The Pennsy style round marker lights
on the rear of the units and both ends of the B-unit were created with .
025-inch Evergreen Styrene plastic rod.
  
The configuration on the antenna mast on the rear of the A-units will be
available as my drawings are complete from my upcoming article in MAINLINE
MODELER magazine.  I have attached a copy of a photo that may help...

All information provided by Greg Martin and used with permission.