Element A: Presentation and Justification of the Problem

In 1989, the original Bambi bucket was first introduced to the SEI industry as a solution to stopping the spread of wildfires. The development of this innovative aerial firefighting product was born out of the valuable feedback received from helicopter operators as well as Canadian and American forest and land management agencies. These Bambi buckets come in variety of different sizes ranging from 75 US gallon model to a 2,600 US gallon model, these buckets provides cost effective water delivery and are constructed from a unique fabric that has a maximum durability and strength.

On October 2, 1984, Don Arney developed the first Bambi bucket, but it was originally called the Collapsible Fire Fighting Bucket. The Collapsible Fire Fighting Bucket is a valve system that can control the release of water from the bags, the way that it works is by having the Collapsible Fire Fighting Bucket being suspended from an aircraft and filled from an open body of water, the bucket has a body made of pliable material having an upper rim, a side wall and a bottom rim. The design for the Collapsible Fire Fighting Bucket has inspired many other companies around the world to come up with their own design of combating wildfires.

EHang demonstrated the 216F at a launch event in Yunfu, China. The 216F can carry up to 150 liters of firefighting foam and 6 fire extinguisher bombs in one trip of the drone and it can reach altitudes of 600 ft. Using a visible light zoom camera to quickly identify the location of fire, the 216F hovers precisely in position and uses a laser aiming device to fire a window breaker, the fire extinguishing bombs and then a full-range spray of firefighting foam, the EHang release explains that “Multiple 216Fs can be deployed to rapidly extinguish the fire.”

The present invention relates to a fire drone for extinguishing fire, and more particularly, when a fire occurs in a house, a building, etc. It is made so that the fire can be quickly suppressed by an initial input, and ground movement and flight movement can be freely performed. The present invention relates to a fire drone for fire suppression, which is connected to a central control system and operated unattended from a long distance. In general, a firefighting helicopter is a aircraft that rotates the rotor blades by the engine to fly the fuselage with lift and propulsion force generated by the flow of air passing through the surface of the rotor blades, and is widely used for transportation, movement, attack, and firefighting.

A SoftTrack Skidgine is all about the suspension system: Most track vehicles, like a bulldozer, have nothing or very little in the way of suspension and therefore, the tracks do not move up and down over rough terrain. When a track vehicle maneuvers, it has a tendency to push whatever is in the way out of the way, and thus makes a mess of the terrain it is operating on. In hilly or rugged country this destruction of soil, combined with later erosion, can cause lots of problems environmentally. Lines created by dozers can turn into a path-of-least-resistance for water runoff, bringing dangerous silt into lower lakes, rivers, and ponds, potentially creating mudslides or harming nearby wildlife in the process.

This invention relates to tractors, such as-are ordinarily used for farming operations, and is more particularly directed to a new and improved gear reduction transmission means for reducing the speed between the crank shaft of the tractor engine and the drive wheels of the tractor. Heretofore, it has been found by experience that in certain hilly sections in the wheatcoun- .10 try a tractor will stall by reason of the fact that it does not have enough power in low gear to be able to pull uphill certain types of heavy farm machinery, such as a combined harvester and thresher. Occurrence 15 from time to time, causes great inconvenience and leads to a considerable loss of time in working a field.