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一、改进导航方法的必要性我省自六十年代初开展飞机播种造林(简称飞播)以来,到82年正,总计共播177个播区,分布于8个地州,45个县。累计飞播总面积达18,187,019亩,其中有效面积达13,191,324亩,占飞播总面积的72.53%;占全省总面积的4.98%。二十多年的飞播生产实践中,使我们体会到有很多地方,需待有关部门密切配合,不断地做出力所能及的改进。例如飞播的导航方法,就是其中之一。目前我省采用的飞播导航方法,地面工作量过大,特别是春季播种季节,由于适于飞行的天气不多,为了抓住有利的飞行天气,往往两,三个播区同时做好准备工作,信号人员进入播区,以便那个播区出现适飞天气,就立即飞播。我省地处云贵高原的斜坡,春季冷、暖气团往往在此形成锋面,并往返推移,因此,雨天雾大较多。一遇这种情况,大量劳力摆在山上,进退两难,造成人力安排
I. Necessity of Improving Navigation Methods Since the beginning of the planting and planting of aircraft (referred to as aerial broadcasting) in the early 1960s, Shaanxi Province has been broadcasting a total of 177 sown areas in 82 prefectures and 45 counties. Cumulative total area of 18,187,019 acres of fly, of which an effective area of 13,191,324 mu, accounting for 72.53% of the total area of fly; accounting for 4.98% of the total area of the province. Over the past two decades, the production of aerial broadcasting has enabled us to realize that there are many places that need to be closely matched by the departments concerned and constantly make improvements within their means. For example, the method of aerial navigation is one of them. At present, the method of airborne navigation adopted in our province is too heavy on the ground, especially in the spring seeding season. Due to the small amount of weather suitable for flight, in order to seize favorable flying weather, two or three airplanes are often prepared at the same time , Signal personnel into the broadcast area, so that the broadcast area appeared fit weather, immediately fly. The province is located in the slope of the Yunnan-Guizhou Plateau, the spring cold, warm air masses are often formed in this front, and from time to time, therefore, more rain and fog. In such a situation, a large amount of labor is placed on the hill, making a dilemma and causing manpower to make arrangements