Northrop got his first aviation job in Loughead in 19 16. 1923 Northrop joined Douglas Aircraft Company and became the chief engineer. 1927, Northrop returned to the restructured Lockheed company. Designed the Lockheed Vega aircraft.
Northrop founded its own Avion company on 1928, and was forced to sell the company to United Aircraft Transportation Company on 1930 to become Northrop Aviation Technology Company. With the help of Donald douglas, Northrop Corporation was established in 1932. The company made two very successful monoplane aircraft, Gamma and Delta.
1937 The former Northrop Company became a part of Douglas Company due to labor problems. 1939 Northrop re-established a new Northrop company in Hawthorne, California. In the new company, Northrop focused on the design of flying wings. Northrop believes that flying wing is the next important stage of aircraft design. The designed flying wings are N- 1M, N-9M, YB-35, YB-49 and so on. However, it was not until the B-2 stealth bomber with flying wing design was adopted in the 1980s that the concept of flying wing really entered the practical stage.
1994, Northrop and Grumman merged to form Northrop Grumman because they lost to Lockheed Martin in the competition between advanced fighters and joint attack aircraft.
Northrop's famous products include P-6 1 Black Widow Night Fighter, F-5 Freedom Fighter, F-20 Tiger Shark, B-2 and T-38. And YF-23 Black Widow II (in cooperation with McDonnell Douglas) who lost to F-22 in the competition. Northrop is the son of a lecturer in zoology at Columbia University. The lecturer died because of the explosion in the laboratory. But this can't stop Northrop from pursuing scientific career. 19 15 received his Ph.D. in Colombia, and then entered the Rockefeller Institute of Medicine to engage in medical research under the leadership of Loeb. After sumner discovered crystalline urease, northrop began to study it and solved the most difficult problem in the debate about urease. 1930 He crystallized pepsin, which is a digestive enzyme secreted by gastric juice and can decompose protein. 1932 reported that he obtained the crystal of trypsin and 1935 obtained the crystal of chymotrypsin, both of which are digestive enzymes that decompose protein in pancreatic juice. He purified these two enzymes and studied them carefully. Since then, many researchers have crystallized dozens of enzymes, all of which have been proved to be protein. Thanks to the research work of sumner and Northrop, enzymes are no longer mysterious substances, but substances with known chemical properties. Northrop shared the 1946 Nobel Prize in chemistry with sumner and Stanley.