An aircraft usable as a passenger aircraft and a fire fighter aircraft. The passenger aircraft includes a passenger area with passenger seats and a permanently installed fire extinguishing medium tank for storing fire extinguishing medium such as water, as well as a fire extinguishing medium nozzle for discharging the fire extinguishing medium. The passenger aircraft may be a type from an aircraft series also including a long-haul aircraft having a center tank for range extension. In the passenger aircraft, a center tank may be used as an extinguishing medium tank.

An aircraft usable as a passenger aircraft and a fire fighter aircraft. The passenger aircraft includes a passenger area with passenger seats and a permanently installed fire extinguishing medium tank for storing fire extinguishing medium such as water, as well as a fire extinguishing medium nozzle for discharging the fire extinguishing medium. The passenger aircraft may be a type from an aircraft series also including a long-haul aircraft having a center tank for range extension. In the passenger aircraft, a center tank may be used as an extinguishing medium tank.

This disclosure relates to system and method for cleaning surfaces using drones. The method includes identifying, by a first drone, a cleaning strip in contact with a surface. The cleaning strip connects a second drone and a third drone. The second drone is communicatively coupled with the third drone. The first drone is communicatively coupled with each of the second drone and the third drone. The method further includes releasing a cleaning agent at a preconfigured pressure upon a current target region of the surface near the cleaning strip. The method further includes relocating the cleaning strip upon the current target region. The method further includes performing a set of oscillations through the cleaning strip across the current target region. Each of the set of oscillations includes coordinating a displacement of the cleaning strip by a predefined distance, alternating towards each of ends of the cleaning strip.

This disclosure relates to system and method for cleaning surfaces using drones. The method includes identifying, by a first drone, a cleaning strip in contact with a surface. The cleaning strip connects a second drone and a third drone. The second drone is communicatively coupled with the third drone. The first drone is communicatively coupled with each of the second drone and the third drone. The method further includes releasing a cleaning agent at a preconfigured pressure upon a current target region of the surface near the cleaning strip. The method further includes relocating the cleaning strip upon the current target region. The method further includes performing a set of oscillations through the cleaning strip across the current target region. Each of the set of oscillations includes coordinating a displacement of the cleaning strip by a predefined distance, alternating towards each of ends of the cleaning strip.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for controlling spraying of chemicals by an unmanned aerial vehicle (UAV). An unmanned aerial vehicle system includes one or more processors configured to perform operations of autonomously performing a flight path by the UAV and dispersing a chemical by the UAV along portions of the flight path. The UAV may include a chemical spray system having one or more spray booms with multiple nozzles for dispersing a chemical. The chemical spray system may include one or more tanks attached to the body of the UAV and a pump fluidly connected to the tanks to disperse chemical via the spray booms.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for controlling spraying of chemicals by an unmanned aerial vehicle (UAV). An unmanned aerial vehicle system includes one or more processors configured to perform operations of autonomously performing a flight path by the UAV and dispersing a chemical by the UAV along portions of the flight path. The UAV may include a chemical spray system having one or more spray booms with multiple nozzles for dispersing a chemical. The chemical spray system may include one or more tanks attached to the body of the UAV and a pump fluidly connected to the tanks to disperse chemical via the spray booms.

The present disclosure is directed to spray boom for aerial spraying comprising an elongate housing operable to be mounted to an underside of an aircraft, the elongate housing defining a hollow cavity, and a plurality of couplings positioned along at least a portion of a length of the elongate housing, wherein each of the plurality of couplings comprises a cylindrical boss that is unitary with and thermally formed from the elongate housing.

The present disclosure is directed to spray boom for aerial spraying comprising an elongate housing operable to be mounted to an underside of an aircraft, the elongate housing defining a hollow cavity, and a plurality of couplings positioned along at least a portion of a length of the elongate housing, wherein each of the plurality of couplings comprises a cylindrical boss that is unitary with and thermally formed from the elongate housing.

An autonomous marking apparatus comprising a propulsion system, a location sensor, a payload assembly, one or more marking sensors, a transceiver, a data store, and a processor. The location sensor is arranged to determine the location of the apparatus. The payload assembly is arranged to carry a payload of marking material. The one or more marking sensors are arranged to scan an area in proximity to the apparatus. The transceiver is arranged to exchange data with a remote server via a data network. The data store is arranged to store a portion of the data. The processor is arranged to receive data from the location sensor, the one or more marking sensors, and from the transceiver. The processor is also arranged to send data to the transceiver and control the delivery of the payload at the location of the apparatus.

An autonomous marking apparatus comprising a propulsion system, a location sensor, a payload assembly, one or more marking sensors, a transceiver, a data store, and a processor. The location sensor is arranged to determine the location of the apparatus. The payload assembly is arranged to carry a payload of marking material. The one or more marking sensors are arranged to scan an area in proximity to the apparatus. The transceiver is arranged to exchange data with a remote server via a data network. The data store is arranged to store a portion of the data. The processor is arranged to receive data from the location sensor, the one or more marking sensors, and from the transceiver. The processor is also arranged to send data to the transceiver and control the delivery of the payload at the location of the apparatus.