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
General Interest. Earhart completes transatlantic flight. Five years to the day that American aviator Charles Lindbergh became the first pilot to accomplish a solo, nonstop flight across the Atlantic Ocean, female aviator Amelia Earhart becomes the first pilot to repeat the feat, landing her plane in Ireland after flying across the North Atlantic.