Eleanor Creesy helped guide one of the fastest sailing ships ever built_美文

Eleanor Creesy helped guide one of the fastest sailing ships ever built

The ship had traveled almost four hundred eighty kilometers in twenty-four hours. This was an extremely fast speed. Few ships had ever sailed this fast.

The captain of a ship keeps a written record of each day’s events when a ship is at sea. This record is called a ship’s log. On May fifteenth, just seventeen days after leaving New York, Captain Creesy wrote this in the Flying Cloud’s log:

“We have passed the Equator in two days less time than ever before. We have traveled five thousand nine hundred and nine kilometers in seventeen days!”

As the Flying Cloud sailed south, each day was extremely exciting. As it neared the South Atlantic, however, storms began to cause great concern.

For Eleanor Creesy to learn the correct position of the ship each day, she had to be able to see the sun, the moon or stars. This was impossible when the ship entered an area of storms. It was then that her greatest skill as a navigator became extremely important.

When bad weather prevented navigators from seeing the sun, moon or stars, they had to use a method called “dead reckoning” to find the ship’s position.

Dead reckoning is not exact. A navigator would take the last known position of the ship, then add the ship’s speed. The navigator also had to add any movement of the ship to the side caused by waves or the wind. But this information was only a guess. Even a good navigator could be wrong by many kilometers.