Category 1 is always the greatest level of hazard (that is, it is the most hazardous within that class). If Category 1 is further divided, Category 1A within the same hazard class is a greater hazard than category 1B. Category 2 within the same hazard class is more hazardous than category 3, and so on.
Correction: An earlier version of this story incorrectly stated that Charles Nungesser and Francois FranÃ§ois coli would have been the first pilots to make a nonstop transatlantic. Flight a pair Of british pilots made such a flight in. 1919
Amelia checked the maps and kept records of their speed and altitude. The flight lasted 20 hours and 40 minutes. They landed on June 18, 1828, in the harbor of Burry Port, Wales. Amelia became the first woman to cross the Atlantic Ocean by air.