In 1929, three years after his flight over the North Pole, the American explorer, R.E. Byrd, successfully flew over the South Pole for the first time. Though, at first, Byrd and his men were able to take a great many photographs of the mountains that lay below, they soon ran into serious trouble. At one point, it seemed certain that their plane would crash. It could only get over the mountains if it rose to 10,000 feet. Byrd at once ordered his men to throw out two heavy food sacks. The plane was then able to rise and it cleared the mountains by 400 feet. Byrd now knew that he would be able to reach the South Pole which was 300 miles away, for there were no more mountains in sight. The aircraft was able to fly over the endless white plains without difficulty.
在1929,三年后他飞越北极,美国探险家R,伯德,首次成功地飞越了南极。虽然,在第一,伯德和他的人可以采取许多横亘,他们很快就陷入了困境。在这一点上,飞机似乎肯定会崩溃的。它只会在山在上升到10000英尺。伯德马上命令他的助手们把两个沉重的食品袋。于是飞机可以上升了,它离山头400英尺。伯德这时知道他将能够达到300英里以外的南极了,因为没有更多的山了。飞机可以毫无困难地飞越这一望无际的茫茫雪原。