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为了提高森林防火水平,北京市从今年开始启动直升机航空护林工作。4月26日,在通州区张家湾进行了一次直升机灭火试验。上午7时45分,一架从空军某部租来的米-8型直升机,带着吸水吊桶升上蓝天,几次试运行后,正式进行吸水扑火作业。该机一次吸水1.5吨,在50米高度洒水,水团呈柱状,落地为长15米、宽8米的长方形,在风的作用下,有效灭火面积超过1000平方米。这是北京市首次采用直升机灭火试验,本刊上期曾作了报道,这里介绍的是澳大利亚在森林防火中使用的S-64F直升机的情况。
In order to raise the level of forest fire prevention, Beijing started helicopter aviation forest protection work this year. On April 26, a helicopter fire test was conducted in Zhangjiawan, Tongzhou District. At 7.45am, a Mi-8 helicopter leased from a part of the Air Force went up to the sky with a water-absorbing bucket. After several trial runs, it formally carried out suction-fire flames. The machine absorbs 1.5 tons of water once and sprinkles water at a height of 50 meters. The water mass is columnar and landed for a rectangle of 15 meters in length and 8 meters in width. Under the action of the wind, the effective fire extinguishing area exceeds 1000 square meters. This is the first time that Beijing has adopted a helicopter fire-extinguishing test, which was reported in the issue issue of the current issue. The S-64F helicopter used in forest fire prevention in Australia is described here.