The History
The Düsseldorf fire-fighting boat was developed and built by the Rheinwerft company of Mainz-Mombach, and it is operated in the Ruhr industrial region of Germany. The vessel is designed specifically to cope with disaster situations, such as a ship on fire, a major oil leak or a harbor system in danger of explosion, and its fire monitors, operating at a pressure of 10.5 bar, can hurl water or foam 145 feet high and a distance of up to 310 feet. The two V-12 engines produce a total of 930 kW (1260 BHP), giving the boat a maximum speed of around 23 mph.

The Model
The Romarin kit of the Düsseldorf fire-fighting boat is large and capacious enough to accommodate all the equipment required to emulate the wide-ranging facilities of the full-size vessel. Optional working systems include the fire monitors, crane, anchor winch, radar, searchlights, blue light, horn and siren, and also the sound of the diesel engines. The plastic hull is moulded in thick-walled material, and it offers plenty of space for the numerous mechanical and electronic parts required for the auxiliary working systems. The model is propelled by two proven MAX Gear power systems, giving it an impressive turn of speed. Four large rudders guarantee extreme maneuvering capability both forwards and astern. The fire monitors can be swiveled horizontally and vertically from the transmitter, and with the recommended electric geared pump they can fire a jet of water a distance of 20 feet. If a working boat crane is fitted, the vacuum-moulded rowing board can be raised, swung outboard and lowered to the water in true scale style.

The TD SR12 receiver is equipped with a triple antenna (2×2.4G & 1×900M) design that provides multi-directional wide coverage for the remote signal and is designed for RC users who want to benefit from resilience and long-range in their radio communications.
TD SR12 also provides a socket that can be used to connect the NFC Switch panel to enable the built-in Power Switch function. Dual-power provides a safe and efficient way to power the system with your power sources connected via a pair of standard XT30 connections. The dual-power consumption system is designed to operate in balance mode, where it consumes the power line from either power source depending on which has the higher voltage. With a built-in black box module, the data (Power & Signal related) under unusual status during the flight can be recorded by TD receivers.
The configurable 12-channel ports are a big feature of TD SR12, each channel port can be assigned as PWM, SBUS, FBUS, or S.Port. With the FBUS protocol, the Tandem series receivers can open up the possibility of seamlessly pairing with multiple telemetry devices (Neuron ESC, Advance Sensors, etc.) as well as simplifying the builds setup.