| 摘要 |
A liquid dropping apparatus for a helicopter includes a tank for containing a liquid therein for attachment below a helicopter body. The tank has a lower surface with a concave portion formed by concaving a wall portion and has a liquid discharge port opened on a side surface of the concave portion. A door is provided on a bottom surface of the concave portion of the tank to pivotally swing around a side thereof closer to the bottom surface of the concave portion, thereby freely opening and closing the liquid discharge port. Drivers are provided for driving the door to open and close.
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