An unmanned aerial vehicle includes a central body having a plurality of sides and a plurality of arms extendable from the central body. Each arm is configured to support one or more propulsion assemblies that provide a propulsion force while the unmanned aerial vehicle is in flight. The arms are configured to transform between a flight configuration in which the arms are extended away from the central body and a compact configuration in which free ends of a first subset of the arms collectively define a rectangular area. Free ends of a second subset of the arms are closer to a yaw-axis of the unmanned aerial vehicle than the free ends of the first subset of the arms. The yaw-axis passes through the rectangular area.

A content-driven and content delivery UAV system. The UAV system includes a content source to provided pressurized content to the UAVs via a content transmission media. The pressurized content is utilized to drive a mechanical propulsion and steering system to keep the UAV aloft and direct it to a particular location. The pressurized content received by the UAVs can be directed back to the content source, to another UAV and or discharged from the UAV to a desired target. Thus, the UAVs may include a nozzle or valve for discharging the content and thus delivering the content to a desire location.

A method of and apparatus for making and applying a clean fire and smoke inhibiting slurry composition containing clean fire inhibiting chemicals, and cellulose or wood fiber, mixed with water and other additives, on surfaces including ground surfaces in advance of wild fire, to blanket grounds from wildfire ignition, and also application over smoldering ambers and ashes to prevent re-ignition while reducing (i) the use of significant amounts of water, (ii) the production of toxic run off water, and (iii) toxic smoke.

A method of suppressing a wild fire raging towards a target region of land in a direction determined by prevailing winds and other environmental and weather factors. Prior to a wild fire reaching a target region of land, a GPS-guided system is used to apply an anti-fire (AF) chemical liquid mist over a GPS-specified fire break region, in advance of the wild fire and containing molecules that cling onto vegetation and form a fire break region, while providing a non-treated region of sufficient size between the front of the wild fire approaching the target region of land and the fire break region. When the wild fire reaches and moves through the GPS-specified fire break region, the molecules clinging onto the vegetation reduce the free-radical chemical reactions raging in the combustion phase of the wild fire. This reduces the destructive energy of the wild fire, thereby suppressing the wild fire and protecting the GPS-specified target region of land.

The present invention relates to fire suppressant systems and methods for suppressing or extinguishing fires. These fires may be wild fires. It also relates to new methodologies that employ a fire suppression technique that allows for one to target particular areas of a fire. The methods and systems for effectively at least partially suppressing and/or extinguishing fires include the use of a container that will disappear/disintegrate when exposed to the fire allowing fire retardant materials contained in the container to be exposed to thereby suppressing or extinguishing the fire.

A method of fire-fighting is provided based on unmanned aerial vehicles UAV(s) launched from transporter aircrafts to deliver water or fire-retardants or any other fire-fighting materials to a location selected by the fire-fighting personnel. A capability of putting-off high intensity forest fires is provided that stems from the precision and the quantity of material that can be delivered per unit surface per unit time. After releasing the fire-fighting material(s), the UAV reaches a safe altitude from which it flies on autopilot to intercept and then proceed on a pre-programmed route to land per pre-programmed instructions on an airfield from which fire-fighting transporter(s) operate, allowing a high efficiency along the line, from loading the transporter airplanes to maximizing the quantity of material that reach the target, to minimizing the remote-pilot time and up to the recovery system that minimizes the recovery cost and it maximizes UAVs' utilization by a quick turnaround.

A fire suppression drone comprises a main body, a plurality of propellers provided on an outer circumference of the main body and driven by a driving motor, a pump provided in the main body and connected to a water feeding vehicle through a water feeding hose, at least one water jet nozzle provided on the outer circumference of the main body to jet water supplied by the pump, a camera provided on the outer circumference of the main body, and a controller connected with the driving motor, the pump, and the camera and connected with a remote controller to be wirelessly communicable with the remote controller, wherein the remote controller includes a monitor, the monitor capable of display, in real-time, an image captured by the camera.

A firefighting aircraft with a body and wings comprises a firing means configured to fire at least one fire suppression container provided in the body. The at least one fire suppression container has a casing filled with a fire extinguishing material and formed of a material destroyed by an impact. The first extinguishing material includes at least one of a fire extinguishing liquid, a fire extinguishing powder, or a fire extinguishing foam.

A system for filling a tank for a firefighting helicopter with water without ground personnel, comprising a pilot controlled valve assembly to selectively permit water to flow into the refill tank upon the receipt of a communication transmitted by a communication device within the helicopter. The pilot controlled valve assembly can include a supply valve configured to move between at least a closed state and an open state, a controller configured to control the supply valve, and a receiver configured to send a signal to a controller to cause the controller to at least open the supply valve upon receipt by the receiver of a communication meeting one or more predetermined criteria. The water tank can be filled from a water source, including a municipal water source, when the supply valve is open to provide a more efficient, semi-autonomous refill tank system greatly improves costly and time-consuming manually refill systems.

A disposable unmanned aerial glider (UAG) with pre-determined UAG flight capabilities. The UAG comprises a flight module comprising at least one aerodynamic arrangement; and a fuselage module comprising a container configured for storing therein a payload and having structural integrity. The container is pressurized so as to maintain structural integrity thereof at least during flight, so that the UAG flight capabilities are provided only when the container is pressurized.