First of all, when Lockheed Martin was founded, it did not set foot in the field of military manufacturing, but began to develop civil aircraft. However, Lockheed Martin did not continue to take its own road of civil aircraft because the civil aviation market itself was not large at that time. At the end of World War I, the American government sold a large number of military fighters that were no longer useful, which directly washed away the civil aviation market. So Lockheed Martin went bankrupt for no reason at that time. Later, after many mergers and reorganizations, Lockheed Martin, which we are now familiar with, was formed.
Secondly, Lockheed Martin provided a large number of very advanced weapons and equipment for the US military in exchange for very high profits. Especially during World War II, Lockheed Martin began to produce a large number of military fighters and earned very high profits. However, after the end of World War II, the US government did the same thing again and began to sell a large number of military fighters. Fortunately, the previous orders were all settled by the US government. This kept Lockheed Martin from going bankrupt again. However, in order to ensure that the future war will not be embarrassed by the US government, Lockheed Martin directly shifted its research and development model to a high-cost and high-tech route.
Finally, Lockheed Martin can make a lot of money because after World War II, Lockheed Martin determined its high-cost and high-tech research and development route. The fighter developed in this way has very strong performance, but the price is very expensive. Every time the American government buys it, it is very painful. After the war, I definitely dare not sell it at will. What's more, this sophisticated fighter is not something that ordinary people can play at all.