400 are further configured to automatically connect when in vicinity of each other.

The dedicated or universal remote control unit 400 is according to one embodiment provided with a power source and in addition may be provided with connection means for receiving power from the aircraft or other power supplying sources.

The dedicated or universal remote control unit 400 is according to one embodiment further provided with a user interface enabling desired controlling of the MFFA 100 and adjustment of the settings of the MFFA 100.

In accordance with a further embodiment of the fire extinguisher unit 200, it comprises safety system in the form of a hose release unit 260, such as a cutting device configured to cut the hose 223 if required, thus providing an emergency cutting device, if an emergency situation occurs, requiring the cutting of the hose 223 to release it from the aircraft. The hose release unit 260 is operated manually by the dedicated or universal remote control unit 400 or automatically operated if the at least one sensor 242 of the fire extinguisher unit 200 experience undesired situations. The mentioned hose release unit 260 will e.g. be arranged below or at lower part of the fire extinguisher unit 200.

The mentioned dedicated or universal remote control unit 400 may further be incorporated in the cockpit of the aircraft if desired.

The fire extinguisher unit 200 is further provided with a lifting assembly 500 enabling manual or automated connection of the MFFA 100 and fire extinguisher unit 200 to corresponding lifting system of an aircraft. In an automated embodiment, the lifting assembly 500 do not require any persons on ground to connect it to the aircraft. The lifting assembly 500 according to one embodiment comprises a connector 510 and at least one lifting member 520 arranged to the support structure 210 via at least one appropriate connection point 521 at one end, and to the connector 510 at the other end. The lifting assembly 500 may be arranged as a fixed part of the fire extinguisher unit 200 by that the lifting member(s) 520 is/are formed by rigid structure members, such as bars, poles or rods, or as a remote lifting assembly 500, where the lifting members 520 are formed by cables, chains, wires or similar allowing the connector 510 to be positioned on the ground in the vicinity of the MFFA 100 and fire extinguisher unit 200. The connector 510 is according to one embodiment provided with an engagement member 511 that a cargo hook system (not shown) suspended from the aircraft can engage and lock on to and unlock from in an automated and safe manner. The connector 510 may further be provided with a frustum-shaped guide body 512 below the engagement member 511 to facilitate the connection of the cargo hook system. Such cargo hook systems, are well known for a skilled person and requires no further description herein.

In accordance with a further embodiment of the fire extinguisher unit 200, the fire extinguisher unit 200 comprises protecting shields (not shown), plates, cover or similar, arranged to enclose and protect the moving parts of the fire extinguisher unit 200, such as the at least one motorized hose reel 220 and at least one motor 222 associated with the at least one motorized hose reel 220.

Reference is now made to FIGS. 3A and 3B showing principle drawings of the water supply unit 300 of the MFFA 100. The water supply unit 300 is according to one embodiment formed by a housing 310 configured with positive buoyancy to float in water.

The water supply unit 300 further comprises at least one water pump 320 driven by at least one controllable motor 321. The at least one water pump 320 is in fluid communication with a water inlet 311 e.g. arranged at lower part thereof and open to surrounding water, and a water outlet 312 provided with a connection 313 for connection to a second end of the hose 223 of the fire extinguisher unit 200. The at least one water pump 320 is configured to supply an even flow of water from a water source to the fire extinguisher unit 200 via the deployed hose 223, further described below. The at least one water pump 320 may be any type of pump capable of delivering the amount of water and capacity to pump water with required pressure to the fire extinguisher unit 200.

The at least one water pump motor 321 is e.g. a combustion motor, such as a turbine motor, diesel motor or a gasoline motor, or a hybrid or electrical motor. The at least one water pump motor 321 is arranged to an energy storage, for electric or hybrid motors, or a fuel tank 322 for combustion motors, wherein the energy storage and/or fuel tank 322 is accommodated in the housing 310. The fuel tank 322 is crash resistant and contain enough fuel, such as bio-fuel, Jet A1, diesel or gasoline, sufficient for long term operation, and in this manner allowing the water supply unit 300 to run through the whole night.

In accordance with one embodiment of the water supply unit 300, the housing 310 is provided with controllable ballast and/or buoyancy enabling control of the position of the water supply unit 300 in the water, as well as compensating for changes in fluid level in the fuel tank 322.

In a further embodiment of the water supply unit 300, the housing 310 has a fixed buoyancy or a combination of fixed and controllable ballast and/or buoyancy provided by ballast and/or buoyancy tanks 323.

In FIG. 3A is also shown exhaust pipes 325 for the embodiments including combustion motors 321. In addition, the housing 310 according to one embodiment is provided with airing pipes (not shown) for supplying air to or removing air from tanks 323 for adjustable buoyancy or ballast, and/or for cooling of the at least one motor 321.

In accordance with a further embodiment of the water supply unit 300, the water supply unit 300 is provided with an anti-drifting system 330, such as, but not limited to, one or more of: anchors, propulsion devices, water jets, etc., configured to maintain the water supply unit 300 in a determined position in a water source, thus preventing it from drifting.

In accordance with one embodiment of the water supply unit 300, the housing 310 encloses the other parts so that there will not be any danger for leakage to the environment in the event of failure or breakdown. In accordance with one embodiment, the housing 310 may be double-walled and/or be provided with at coating or layer sealing the surface of the housing 310 even in case of damages.

The water supply unit 300 is further provided with a control unit 340 provided with a wireless communication device 341 enabling wireless communication with the water supply unit 300. Examples of wireless communication devices 341 applicable are, but not limited to, Global Positioning System (GPS), mobile network or direct WiFi connectivity.

In accordance with a further embodiment, the water supply unit 300 is provided with at least one sensor 342