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Lake Fire
The Lake Fire was a wildfire that burned in the San Bernardino National Forest. The fire started on June 17, 2015 and burned over 31,359 acres before it was fully contained on July 21, 2015. The fire was first reported at 4 p.m. on June 17, 2015 just South of Big Bear Lake in San Bernardino County, and grew extremely quickly in the surrounding densely wooded mountain areas at an elevation of between 6,000 to 9,000 feet. At around 1,500 acres Aerial firefighting operations had begun including approximately eight tankers and a DC-10 Air Tanker from Medford, Oregon loaded with 11,600 gallons of Fire retardant. But due to heavy smoke, aerial operations were having trouble seeing the blaze but estimated that if left unrestrained, the area it could burn in two days could exceed 50,000 acres. With the help of firefighting and fire prevention efforts the actual two day fire progress reached about 15,000 acres. An additional two tankers had been brought in to help combat the fire, but were s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Bernardino National Forest
The San Bernardino National Forest is a United States National Forest in Southern California encompassing of which are federal. The forest is made up of two main divisions, the eastern portion of the San Gabriel Mountains and the San Bernardino Mountains on the easternmost of the Transverse Ranges, and the San Jacinto Mountains, San Jacinto and Santa Rosa Mountains (California), Santa Rosa Mountains on the northernmost of the Peninsular Ranges. Elevations range from 2,000 to 11,499 feet (600 to 3505 m). The forest includes seven wilderness areas: San Gorgonio Wilderness, San Gorgonio, Cucamonga Wilderness, Cucamonga, San Jacinto Wilderness, San Jacinto, South Fork, Santa Rosa Wilderness, Santa Rosa, Cahuilla Mountain and Bighorn Mountain Wilderness, Bighorn Mountain. Forest headquarters are located in the city of San Bernardino, California, San Bernardino. There are district offices in Lytle Creek, California, Lytle Creek, Idyllwild, California, Idyllwild, and Fawns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Forest Service
The United States Forest Service (USFS) is an agency of the U.S. Department of Agriculture that administers the nation's 154 national forests and 20 national grasslands. The Forest Service manages of land. Major divisions of the agency include the Chief's Office, National Forest System, State and Private Forestry, Business Operations, and Research and Development. The agency manages about 25% of federal lands and is the only major national land management agency not part of the U.S. Department of the Interior, which manages the National Park Service, the U.S. Fish and Wildlife Service, and the Bureau of Land Management. History The concept of national forests was born from Theodore Roosevelt's conservation group, Boone and Crockett Club, due to concerns regarding Yellowstone National Park beginning as early as 1875. In 1876, Congress formed the office of Special Agent in the Department of Agriculture to assess the quality and conditions of forests in the United States. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arson
Arson is the crime of willfully and deliberately setting fire to or charring property. Although the act of arson typically involves buildings, the term can also refer to the intentional burning of other things, such as motor vehicles, watercraft, or forests. The crime is typically classified as a felony, with instances involving a greater degree of risk to human life or property carrying a stricter penalty. Arson which results in death can be further prosecuted as manslaughter or murder. A common motive for arson is to commit insurance fraud. In such cases, a person destroys their own property by burning it and then lies about the cause in order to collect against their insurance policy. A person who commits arson is referred to as an arsonist, or a serial arsonist if arson has been committed several times. Arsonists normally use an accelerant (such as gasoline or kerosene) to ignite, propel and directionalize fires, and the detection and identification of ignitable liqui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Investigation
Fire investigation, sometimes referred to as origin and cause investigation, is the analysis of fire-related incidents. After firefighters extinguish a fire, an investigation is launched to determine the origin and cause of the fire or explosion. Investigations of such incidents require a systematic approach and knowledge of basic fire science. Investigating fires The difficulty of determining whether arson has occurred arises because fire often destroys the key evidence of its origin. Many fires are caused by defective equipment, such as shorting of faulty electrical circuits. Car fires can be caused by faulty fuel lines, and spontaneous combustion is possible where organic wastes are stored. A fire investigator looks at the fire remains, and obtains information to reconstruct the sequence of events leading up to the fire. One of the challenging aspects of fire investigation is the multi-disciplinary basis of the investigator's job. As fires can be caused by or involve many i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulldozer
A bulldozer or dozer (also called a crawler) is a large, motorized machine equipped with a metal blade to the front for pushing material: soil, sand, snow, rubble, or rock during construction work. It travels most commonly on continuous tracks, though specialized models riding on large off-road tires are also produced. Its most popular accessory is a ripper, a large hook-like device mounted singly or in multiples in the rear to loosen dense materials. Bulldozers are used heavily in large and small scale construction, road building, minings and quarrying, on farms, in heavy industry factories, and in military applications in both peace and wartime. The word "bulldozer" refers only to a motorized unit fitted with a blade designed for pushing. The word is sometimes used inaccurately for other heavy equipment such as a front-end loader designed for carrying rather than pushing material. Description Typically, bulldozers are large and powerful tracked heavy equipment. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Tender
A water tender is a type of firefighting apparatus that specialises in the transport of water from a water source to a fire scene.Pelastusajoneuvojen yleisopas: säiliöauto (A general guide for rescue vehicles: water tender) (In Finnish). Ministry of the Interior, Finland. Retrieved on April the 28th, 2007 Water tenders are capable of drafting water from a , or hydrant. This class of apparatus does not necessarily have enough pumping capacity to power large [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handcrew
Handcrews are diverse teams of career and temporary wildland firefighters. The crews typically consist of 18 to 20 firefighters but can also contain 4 to 6 and 8 to 10. These crews have the responsibilities of constructing firelines – strips of land cleared of flammable materials and dug down to mineral soil. These lines are generally constructed around wildfires to control them. Another type of line handcrews create is saw line. This is line where all trees limbs are removed up to shoulder height and all small trees and brush is cut down. All the limbs and trees are then carried outside the line and scattered. These are also called ladder fuels that allow the fire to climb up into the canopies which makes controlling a fire much more difficult. Sawyers do the cutting and swampers do the moving of the debris. Depending on the size of the crew there can be between 1 and 5 swampers per sawyer. Other jobs include burn outs, gridding for spot fires, and mop up after the fire is con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Engine
A fire engine (also known in some places as a fire truck or fire lorry) is a road vehicle (usually a truck) that functions as a firefighting apparatus. The primary purposes of a fire engine include transporting firefighters and water to an incident as well as carrying equipment for firefighting operations. Some fire engines have specialized functions, such as wildfire suppression and aircraft rescue and firefighting, and may also carry equipment for technical rescue. Many fire engines are based on commercial vehicle chassis that are further upgraded and customised for firefighting requirements. They are normally fitted with sirens and emergency vehicle lighting, as well as communication equipment such as two-way radios and mobile computer technology. The terms ''fire engine'' and ''fire truck'' are often used interchangeably to a broad range of vehicles involved in firefighting; however, in some fire departments they refer to separate and specific types of vehicle. Design ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Bernardino County Sheriff's Department
The San Bernardino County Sheriff-Coroner's Department (SBSD) serves San Bernardino County, California, which is geographically the largest county in the United States (excluding Alaska's boroughs) and is headquartered in San Bernardino city. SBSD provides law enforcement services to the unincorporated areas of the county and contract law enforcement services to 14 of the county's cities, including Rancho Cucamonga and Chino Hills, serving a total of 1,029,466 of the county's 2 million residents. The department also operates the county jail system, provides marshal services for the county superior courts, and has numerous other specialized divisions to serve the citizens of San Bernardino County. The Sheriff-Coroner is an elected office. However, in 2012 when then-Sheriff Rod Hoops announced his retirement, the Board of Supervisors appointed Assistant Sheriff John McMahon to the position. The Board made the appointment after determining that a special election for sheriff would ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quadcopter
A quadcopter or quadrotor is a type of helicopter with four Helicopter rotor, rotors. Although quadrotor helicopters and convertiplanes have long been flown experimentally, the configuration remained a curiosity until the arrival of the modern UAV or drone. The small size and low inertia of drones allows use of a particularly simple flight control system, which has greatly increased the practicality of the small quadrotor in this application. Design principles Each rotor produces both lift (force), lift and torque about its center of rotation, as well as drag force, drag opposite to the vehicle's direction of flight. Quadcopters generally have two rotors spinning clockwise (CW) and two counterclockwise (CCW). Flight control is provided by independent variation of the speed and hence lift and torque of each rotor. Pitch and roll are controlled by varying the net centre of thrust, with yaw controlled by varying the net torque. Unlike conventional helicopters, quadcopters do no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Bernardino County, California
San Bernardino County (), officially the County of San Bernardino, is a County (United States), county located in the Southern California, southern portion of the U.S. state of California, and is located within the Inland Empire area. As of the 2020 United States Census, 2020 U.S. Census, the population was 2,181,654, making it the fifth-most populous county in California and the List of the most populous counties in the United States, 14th-most populous in the United States. The county seat is San Bernardino, California, San Bernardino. While included within the Greater Los Angeles area, San Bernardino County is included in the Riverside, California, Riverside–San Bernardino, California, San Bernardino–Ontario, California, Ontario metropolitan statistical area, as well as the Los Angeles–Long Beach, California, Long Beach Greater Los Angeles Area, combined statistical area. With an area of , San Bernardino County is the List of the largest counties in the United States by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Retardant
A fire retardant is a substance that is used to slow down or stop the spread of fire or reduce its intensity. This is commonly accomplished by chemical reactions that reduce the flammability of fuels or delay their combustion. Fire retardants may also cool the fuel through physical action or endothermic chemical reactions. Fire retardants are available as powder, to be mixed with water, as fire-fighting foams and fire-retardant gels. Fire retardants are also available as coatings or sprays to be applied to an object. Fire retardants are commonly used in fire fighting, where they may be applied aerially or from the ground. Principles of operation In general, fire retardants reduce the flammability of materials by either blocking the fire physically or by initiating a chemical reaction that stops the fire. Physical action There are several ways in which the combustion process can be retarded by physical action: * By cooling: Some chemical reactions actually cool the material d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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