Diesel locomotive H0, C66, 66004 of DB Cargo, Era VI, prototype condition around 2022, green, sound + smoke, DC/AC

The Class 66/77 is equipped with a load-dependent, pulsed smoke generator that produces differently intense smoke plumes according to the load. The built-in sensors, which provide situational sounds in curves, are controlled by a LokSound V5.0 M4 decoder. This "jack of all trades" understands not only DCC with RailComPlus but also the M4 protocol and therefore registers itself with ESU ECoS or Märklin central station autonomously. Since it also masters Motorola or Selectrix, there is nothing preventing the use of the ESU Class 66/77 on all common central units.

The integrated PowerPack energy storage ensures that comfortable operation is possible even on dirty tracks. The unique two-stroke diesel sound is particularly differentiated by two speakers through the etched fan grille on the roof. A complete lighting system, including cab lighting, driver's desk lighting, and shunting lights with warm white LEDs, rounds off the technical equipment. All light effects present on the prototype can be represented, including the "warning blinkers" or two-light head signal commonly used in Belgium. The frame and body of the model are made of metal and, thanks to a weight of about 590 g, provide prototype-like traction. All structural differences between the variants are taken into account in the ESU models. For example, the ECR locomotive has air conditioning units on the roof, wind deflectors on the side windows, and rectangular buffers. Just like the originals, the models also feature different covers for the battery boxes.

The Class 66/77 is a hybrid model that allows safe operation on two- and three-rail tracks with a wheelset gauge of 14.1 mm. For two-rail operation, the middle slider can simply be removed with the included tool. Done.

Embedded in a metal frame is a five-pole precision motor with slotted winding and noise-optimized commutator – developed by ESU. This motor transmits its power, tamed by two thick flywheels, through a worm/gear drive to four of the six axles. LEDs in the bogies provide realistic flickering during the braking process.