Before the P-47 Thunderbolt gained a "bubble top" fairing, these fighters had slightly different - some claim to be more racial - figure. In the first versions, the plane had a typical canopy built into the fuselage, which resulted in a slightly hunched line.
The first copies of the P-47B underwent a series of tests at the turn of 1941 and 1942. Initially, they were not very promising. One of the planes was lost because of the tail tearing...