The EMD GP38 and GP38-2

EMD originally began as the Electro-Motive Corporation and has its beginnings in 1922 being based out of Cleveland, Ohio building inexpensive motorcars. With the purchase of the company in 1930 by General Motor, and more resources at its disposal the company began developing the precursor of the modern-day diesel-electric road unit (cabs and road-switchers), the streamlined trainset, which consisted of a powered car permanently attached to a few coaches (usually two or three cars).

The most famous of these streamlined trainsets was the Burlington Zephyrs, a beautiful streamlined stainless steel creation (originally powered by Winton engines, which would also become a subsidiary of GM) that was extremely lightweight and fast. The original trainset, the Zephyr 9900, made headlines in 1934 when it completed a non-stop journey from Denver to Chicago in a little over 13 hours.

Because the power cars with these trainsets were permanently attached to the coaches EMC sought to design a locomotive free of this articulated setup but designed in such a manner that a railroad could still attach it to any passenger train and obtain the same, smooth streamlined look. This it did with the unveiling of the EA model in 1937, the first in a long line of passenger diesel locomotive designs that would come to be known as the E series.

Not surprisingly, soon after the EA unveiling the company decided to take things a step further and develop the first true diesel road unit, capable of pulling long freights in main line service. In 1939 it introduced the FT model (perhaps the key difference between the E and F series was that Fs rode on B-B trucks whereas Es rode on C-Cs and carried a noticeably longer carbody), the first in EMC’s F series and one of the most success diesel-electric designs of all time. The F series would go on to define American railroading for years and you can still see it in regular use today, over 60 years after it first debuted! The FT (which stood for Freight, Twenty-seven hundred horsepower) was a superb locomotive and although its 2,700 horsepower came from an A-B setup of a cab (A) and booster (B) units rated at 1,350 horsepower each, it was quickly loved by railroads for the efficiencies it held over steam such as its ruggedness and ease of maintenance.

The FT (which stood for Freight, Twenty-seven hundred horsepower) was a serious locomotive and although its 2,700 horsepower came from an A-B setup of cab (A) and booster (B) units rated at 1,350 horsepower each it would become embraced by the rail industry for the efficiencies it held over steam power as well as being rugged and easy to maintain.

Following the success of its cab units, EMD realized that there was a market to be made in the road-switchers, which at the time was mostly dominated by Alco with its RS series. Its first attempt at this type of locomotive, which gave the train crews both excellent vision all around the locomotive for switching and local service as well as enough horsepower to be used in main line operations, was the BL2. Although unsuccessful from a sales standpoint the BL2 was really a mere stepping-stone for its next model, the GP series (meaning General Purpose).

The GP38, which debuted in 1966 and was built through 1971, and the later GP38-2 which was built between 1972 and 1984, followed the earlier GP30 and GP35 (which were two of EMD’s first models what is commonly referred today as second-generation power, or those diesel locomotives that are clearly defined from early models with less horsepower and fewer other technological features). The GP38 models were both tremendously successful with nearly 3,000 units sold (the GP38 sold around 730 and the GP38-2 sold over 2,100).

The GP38 series was actually no different from earlier second-generation models in terms of horsepower and was even de-rated a bit at only 2,000 hp (as compared to the GP30’s 2,250 and GP35’s 2,500 hp). The unit also carried similar features such as dynamic braking (a system for temporarily employing traction motors as generators and using the resulting electromotive force to slow the train) and an airtight hood that kept out dust, dirt, and other particles from reaching internal components. The most significant differences were in terms of electronics and newer technologies such as filters and blowers (the unit was also three feet longer at 59 feet 2 inches).

The GP38-2 model sold better, as did most "Dash 2" models, because of its further upgrades from the original which included things like a new type of traction motor blower duct, a modular electronic cabinet system and bolted battery box access doors.

Also, of particular note about the GP38 series. In 1982 Trains Magazine selected Baltimore & Ohio GP38 #3802 as its All American Diesel for the locomotive's performance, service, reliability and the fact that it was an extremely successful design found all across the country. The unit ended its career on CSX as #9699. Unfortunately, even after it was plannted to be handed over to the B&O Railroad Museum upon retirement the famous Geep was initially in danger of being sold to a leasing firm. Thankfully the near-blunder was averted and as promised the museum received it as a donation from CSX. Today it awaits restoration back into its original Chessie System colors (when it received its All American status) as well as the nameplates it originally received.

Except for the later GP40 and GP40-2 models, the GP38 and GP38-2 were EMD’s most successful second-generation Geeps and like the earlier GP35 fit exactly what railroads were looking for in terms of horsepower while also including the manufacturers’ excellence in quality and reliability. Because of the model’s success, it comes as no surprise that the unit can still be widely seen across the country from shortlines and Regionals to Class Is. In any event, be on the lookout for them because there are still hundreds roaming around out there!

For more information on the GP38 series consider Mike Schafer’s Vintage Diesel Locomotives, which looks at virtually all of the classic builders and models from Alco PAs to early EMD Geeps. If you’re interested in classic EMDs, or diesels in general, this book gives an excellent general history of both.

Also, Brian Solomon’s The American Diesel Locomotive also studies many of the same diesel models and builders as Mr. Schafer’s publication although at nearly twice the size the book goes into a bit more detail than Vintage Diesel Locomotives and also covers newer models. All in all, though, both books are a great read and you shouldn’t be disappointed with them, not to mention that they are loaded with photos (many in color)! If you're interested in perhaps purchasing these books please visit The Railroad Diamond by clicking the tab in the menu to your left marked "TRD Store".