The Boeing P-12 or Boeing F4B is an American pursuit aircraft that was operated by the United States Army Air Corps, United States Marine Corps, and United States Navy. It was the chief fighter aircraft in American service during the early 1930s but also used internationally.

The P-12 was the US Army’s last biplane fighter. Developed by the Boeing Airplane Company in the late 1920s, the P-12 served the United States’ Army Air Corps, Navy, and Marine Corps as a highly maneuverable pursuit plane and trainer in the 1930s.

Mention the name "Boeing" today and images of giant airliners whisking hundreds of passengers through the sky at speeds in excess of 500 mph come to mind. Between the wars, however, Boeing was a major supplier of fighter aircraft to the Army, Navy and Marine Corps. The P-12E was the ultimate Air Corps biplane fighter.

p-12战斗机，是1928年波音公司自费研制一种双翼单座战斗机，1929年6月交海军试用，它就是著名的舰载战斗机F4B。 不久，美国陆军航空兵（空军之前身）也订购了一批，陆军型号改称P-12（意指第12种战斗机）。

2019年10月15日 · Page details technical specifications, development, and operational history of the Boeing F4B / P-12 Carrier-Borne Pursuit Fighter Biplane Aircraft including pictures.

2018年2月12日 · The Boeing Model 83 was called the P-12 by the Air Corps and the F4B by the Navy. It was an early instance of serendipitous commonality — the biplane had been designed to meet a Navy need, but the Air Corps subsequently found it …

The Boeing P-12 or F4B was an American pursuit aircraft that was operated by the United States Army Air Corps and United States Navy. Boeing developed the aircraft as a private venture to replace the Boeing F3B and Boeing F2B with the United States Navy, the first flight of the P-12 took place on 25 June 1928.

The Boeing P-12 was one of the best known Air Corps fighters of the entire inter-war period. It equipped most of the Air Corps fighter squadrons during the early 1930s.

The Boeing P-12 (Model 102) was the equivalent of the US Navy F4B-1 (Model 99). It was developed from the Model 83 and Model 89 prototypes built as a private venture to replace the United States Army Air Corps (USAAC) PW-9s and US Navy F2Bs and F3Bs.

The Boeing P-12 or Boeing F4B is an American pursuit aircraft that was operated by the United States Army Air Corps, United States Marine Corps, and United States Navy. It was the chief fighter aircraft in American service during the early 1930s but also used internationally.