Roco 7390002 diesel locomotive 781 505-3, CSD, Ep. IV (incl. sound)

Roco 7390002 Diesel locomotive 781 505-3, CSD, Ep. IV - A powerhouse for heavy freight traffic

The Roco 7390002 diesel locomotive 781 505-3 is an impressive replica of one of the most robust diesel locomotives of the Czechoslovak State Railways (ČSD). In Era IV, these locomotives, which were originally classified as T 679.5, were mainly used for heavy freight trains. With its massive appearance and characteristic paintwork, this model is a highlight on any TT model railway layout. Thanks to the factory-installed sound functions and the digital decoder, the locomotive offers a realistic driving experience that appeals to all the senses.

The T 679.5 series, also known as "Sergej", was delivered to ČSD from 1966. A total of 599 locomotives of this series were produced, including some broad-gauge versions for use in international traffic. These powerful diesel locomotives were known for their reliability and tractive power and were mainly used on long, heavy freight trains. The Roco 7390002 faithfully reproduces this iconic prototype and brings Era IV of the ČSD to modern model railroad technology.

Prototype and history of the class 781 (T 679.5)

The class T 679.5, which was later redesignated as the 781 series, was one of the most important locomotives for heavy freight traffic in Czechoslovakia. These robust machines were mainly used on lines with high train loads and demanding terrain. The locomotives, which were based on the Soviet locomotive type M62, were built in the GDR and the Soviet Union and delivered to several Eastern European countries. Due to their massive construction and enormous tractive power, they were quickly nicknamed "Sergej".

With an output of around 2,000 hp and six driven axles, the T 679.5s were ideal for transporting heavy freight trains. In Era IV, these locomotives were used on many important ČSD freight axles and reliably transported coal, steel and other heavy materials. To this day, the 781 series is popular with railroad fans who appreciate its distinctive shape and characteristic engine noises.

Roco - precision and attention to detail in TT scale

The Roco 7390002 781 505-3 diesel locomotive is an outstanding example of the quality and precision that Roco puts into its models. This model is in TT gauge, which is particularly suitable for compact model railroad layouts without losing detail. The model impresses with its fine printing and true-to-original paintwork, which corresponds exactly to the prototype from Era IV. The locomotive is equipped with numerous details, including a silencer, which further emphasizes the characteristic appearance of this class.

The model is technically impressive with a digital decoder in accordance with NEM 651, which allows full control of the locomotive on digital model railroad layouts. The sound functions, which can be switched digitally, provide a realistic driving experience. The typical diesel engine sound, the signal horn and other operating sounds take the operation of the locomotive to a new acoustic level. The possibility of operating the model with prototypical long trains makes the Roco 7390002 particularly attractive for model railroaders who want to realistically recreate large freight trains.

Technical details and functions of the Roco 7390002

The Roco 7390002 diesel locomotive 781 505-3 is equipped with a variety of technical features that make the model particularly powerful and reliable. With a length over buffers of 146 mm, the locomotive is perfectly suited for TT layouts. The six powered axles ensure high tractive power and two traction tires guarantee optimum traction, even with heavy trains. The locomotive has an electrical interface in accordance with NEM 651 with a plug-in device so that digital operation is possible without any problems.

The model is equipped with 3 headlights that change automatically between white and red at both ends of the vehicle depending on the direction of travel. The fine detailing of the body and the chassis, together with the prototypical paintwork, make the model a visual highlight on any layout. Coupling is via the NEM 358 shaft with close coupling kinematics, which enables a realistic and reliable connection with other cars.

The powerful model is specially designed for operation with long freight trains, as is the case with the prototype class 781. The sound functions, which can be controlled via the digital decoder, include typical diesel engine noises, signal horn and other operational sounds that make the driving experience even more authentic.

Conclusion: A powerful locomotive for heavy goods traffic

The Roco 7390002 781 505-3 diesel locomotive is a must for every model railroader interested in Era IV freight traffic. With its detailed replica, digitally switchable sound functions and powerful tractive force, this locomotive is perfect for use on TT model railway layouts. Thanks to the high quality and precise workmanship, the locomotive not only offers a visual highlight, but also technically sophisticated functions that make operation particularly realistic.

For fans of the Czechoslovakian railroad and fans of heavy freight trains, the Roco 7390002 is a worthwhile investment that should not be missing on any TT layout. The combination of state-of-the-art technology and historical prototype makes this model a real highlight.

Features:

• Gauge: TT
• Era: IV
• Railroad company: ČSD
• Minimum radius: 267 mm
• Length over buffers: 146 mm
• Power system: DC Digital
• Digital decoder: NEM 651
• Number of driven axles: 6
• Number of axles with traction tires: 2
• Coupling: NEM 358 shaft with KK kinematics
• Headlights: 3 headlights at both ends of the car, changing with direction of travel
• Interface: NEM 651 with plug-in device
• Powerful model for long trains
• Finely detailed and painted true to the original
• Version with silencer
• Digitally switchable sound functions

Specs:

• Gauge: TT
• Rail Company: CSD
• Era: IV
• Color: Multi-Colored
• Electricity System: DC
• Digital: Yes
• sound: Yes
• News: 2023
• Type: Diesel loco

Instruction manual / Safety instructions:

• Manual (1 MB)

Downloads:

• Spare Parts (943.77 KB)

Further links:

• Print View

CAUTION: Not suitable for children under 3 years. Danger of swallowing! Age recommendation from 14 years.