ATHEARN

READY-TO_RUN 

HO Scale

 This is a F7A and F7B CONSIST Locomotive

 

This is a DC POWERED F7 A unit 

and a F7 B unit " Dummy "

OUT - OF - PRODUCTION Locomotives

Lettered for the:

GREAT NORTHERN

Featuring the 

GREAT NORTHERN Lettering

" BIG SKY BLUE ROCKY " LOGO Paint Scheme

The unit is highly detailed

The EMD F7 is a model of 1,500-horsepower (1,100 kW) diesel-electric locomotive produced between February 1949 and December 1953 by the Electro-Motive Division of General Motors (EMD) and General Motors Diesel (GMD).

Although originally promoted by EMD as a freight-hauling unit, the F7 was also used in passenger service hauling trains such as the Santa Fe Railway's high-speed flagship trains, the Super Chief, & El Capitan, and the Ontario Northland's Northlander.

History

The F7 was the fourth model in GM-EMD's successful line of F-unit locomotives, and by far the best-selling cab unit of all time. In fact, more F7s were built than all other F-units combined. The F7 succeeded the F3 model in GM-EMD's F-unit series, and was replaced in turn by the F9. Final assembly was at GM-EMD's La Grange, Illinois, plant or GMD's London, Ontario, facility. There was no F4, -5 or -6 model; "7" was chosen to match the contemporary twin-engine E7, and was also applied to the new GP7 road-switcher.

The F7 differed from the F3 primarily in internal equipment—mostly electrical—and some external features. Its continuous tractive effort rating was 20 percent higher, e.g. 40,000 lbf (180 kN) for an F7 with 65 mph (105 km/h) gearing, compared to 32,500 lbf (145 kN) for an F3 with the same gearing.

Many F7s remained in service for decades, as railroads found them economical to operate and maintain. However, the locomotive was not very popular with yard crews who operated them in switching service because they were difficult to mount and dismount, and it was also nearly impossible for the engineer to see hand signals from a ground crew without leaning way outside the window. As most of these engines were bought and operated before two-way radio became standard on most American railroads, this was a major point of contention. In later years, with the advent of the "road switchers" such as the EMD GP7, F-units were primarily used in "through freight" and "unit train" service where there was little or no switching to be done.

Engine and powertrain

The F7's prime mover is a 16-cylinder 567B series diesel engine developing 1,500 hp (1.1 MW) at 800 rpm. The 567B is a mechanically aspirated two-stroke design in a 45-degree V engine configuration, with 567 cu in (9.29 L) displacement per cylinder, for a total of 9,072 cu in (148.66 L).  A direct current generator that is mechanically coupled to the flywheel end of the engine powers four traction motors, with two motors mounted on each Blomberg B truck. EMD has built all of its major components since 1939.

Identification

There are no easily identifiable differences between late F3 production and early F7 production; the major differences were all internal electrical system changes. However, no F7 had the "chicken wire" grilles seen on most F3s, and no F3s had later F7 changes described below under Phases.

The F9 is distinguishable from the late F7 by having five, rather than four, carbody center louver groups covering the carbody filters. The additional one is placed ahead of the first porthole, where F7s have no openings. The F9's greater power output, of course, cannot be seen from the outside.

There were also two main classes of F7s: passenger and freight. Most passenger units had upper and lower headlights, but there were exceptions. Many freight units had the upper Mars or Pyle brand warning light as well. And some passenger units only had a single upper headlight, i.e. the Pennsylvania. Many units eventually had the upper lights or the door light removed/plated over and the Mars/Pyle light removed. These early warning lights had a motor and linkages that often required maintenance in the shops.

LOCOMOTIVE FEATURES: 

See-through cab windows - 

 Directional constant lighting - 

Walkway Tread - 

 Headlight brightness remains constant - 

Separately applied photo-etched metal and  injection molded detail parts -  

Detailed fuel tank -  

Accurately-painted and –printed paint schemes - 

Scale knuckle couplers - Kadee® compatible - 

Fully-assembled and ready-to-run - 

Scaled from prototype resources including drawings, field measurements, photographs, and more - 

5-pole skew wound motor, precision machined flywheels, and multi-link drivetrain - 

All-wheel drive with precision gears for smooth & quiet operation -  

All-wheel electrical pickup provides reliable current flow - Wheels with RP25 contours operate on all popular brands of track  - 

Heavy die-cast frame for greater traction and more pulling power - 

Packaging securely holds model for safe storage - 

" These have been highly sought after Units "

 We do combine shipping on multiple purchases.  If you do a Buy It Now the transaction requires immediate payment for each item separately. 

What you need to do is put it in the shopping cart and then when you go to checkout it will recalculate the shipping and combine the items for you. 

If you pay first I am unable to make any adjustment because ebay has then taken its fees on the shipping as well.  If you have a concern message me and I can work something out for you.

 

THIS IS AN ASSEMBLED Item

The item is NEW in the original box from old stock 

 

PERSONAL INVENTORY:

Many of these unique items are from my personal inventory which was accumulated over the years.   They are hard to part with but due to downsizing in retirement they too are looking for a good home which can appreciate and enjoy them.

STORE INVENTORY:

Having discontinued my Hobby Store and left frigid “Minne-Snow-Da” I have relocated and retired to the warmer part of the country, Down to Sunny TEXAS.   

I will be Liquidating the remaining stock. 

I will be listing items over the next year or so clearing them out.

Please see the photos we take actual photos of each item

Most of these items are New in the box removed only to take photos of them.