Every military pilot who has flown in combat has experienced frightening and stressful situations. It happened to me one night in 1969, over Vietnam, but it was of my own creation. During the Firefly Missions, my unit provided two UH-1 gunships and a Huey with a bright spotlight array every night to patrol the river networks near Da Nang. We alternated with another unit all night long. To prepare for the flights, pre-flight checks were carried out in daylight, so all we had to do was strap in and start the engine. The UH-1s have two generators, main and standby/backup also serving as the starter motor. During the systems check with the engine running, DC voltage is checked by rotating the VM knob to each position. Then the main gen is switched to Off and the standby gen is switched from Start to STBY. The main is switched back On and the standby gen is left in STBY as a backup.
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机译：每个参加过战斗的军事飞行员都经历过可怕和紧张的情况。它发生在1969年的一个晚上，在越南上空，但它是我自己创造的。在萤火虫任务期间，我的部队每晚提供两架UH-1武装直升机和一架带有明亮聚光灯阵列的休伊，在岘港附近的河网巡逻。我们整晚都与另一个单位交替工作。为了准备飞行，飞行前的检查是在白天进行的，所以我们所要做的就是系好安全带并启动发动机。UH-1 有两个发电机，主发电机和备用/备用发电机也用作启动电机。在系统检查发动机运转期间，直流电压tage 通过将 VM 旋钮旋转到每个位置来检查。然后，主发电切换到关闭，备用发电从启动切换到 STBY。主发电机重新打开，备用发电机作为备份留在 STBY 中。
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