Model: The train is a 4-part set. Both end cars (TK1 and TK2) are powered. The train has an mfx digital decoder and extensive sound functions. It has controlled, high-efficiency propulsion in both powered end cars, centrally mounted. 4 axles powered through cardan shafts in each end car. Traction tires. The train has factory-installed interior lighting. The triple headlights and dual red marker lights change over with the direction of travel. They and the interior lighting will work in conventional operation and can be controlled digitally. The third headlight for the French headlight code can be turned off separately in digital operation. The headlights and interior lighting are maintenance-free, warm white LEDs and the marker lights are maintenance-free red LEDs. The train has separately applied metal grab irons. It also has inset windshield wipers. The engineer's cabs in the powered end cars have interior details. A powered end car and a transition car are permanently coupled together in pairs and have special close couplings with a guide mechanism. There is an additional guide mechanism in the Jakobs truck. The end cars have a pickup shoe changeover feature so that the pickup shoe at the front of the train is the one picking up power. The interior lighting is powered through a continuous electrical connection through the entire train. Each powered end car has 2 SNCF design single-arm pantographs. The pantographs work mechanically but are not wired to take power. The train is a scale reproduction. The minimum radius for operation is therefore 360 mm / 14-3/16", when there is sufficient clearance on both sides.
Length of the 4-part set 101 cm / 39-3/4".
The 37794 basic set can be expanded with the 43424, 43434, and 43444 extension sets to a prototypical 10-car unit.