The US was already geared for war, that's what the cold war was all about. However, US tactics and machines of war had to be modified somewhat for the Vietnam War.
Just as with most other instruments, it has many variations, of which the cup anemometer is the most common. radar: Meteorologists use radar to track and measure rainfall in areas. thermometer: Thermometers play an important role in predicting the weather by allowing meteorologists to measure the temperature.
To measure wind speed and direction, a meteorologist uses an anemometer. One type of anemometer is a horizontal windmill; it has small plastic cups affixed to metal arms on a pivot that spins in response to the wind. A separate vane indicates the wind direction.