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Bf 109B-1 |
By the beginning of 1937, the
Bf 109 production lines were well established, official testing and evaluation was building experience with the fighter and the first examples were entering squadron service. All of this was providing feedback regarding the design to Messerschmitt, and the aircraft began to evolve.
There is a great deal of confusion over the first four versions of the Bf 109 to enter service with the Luftwaffe, largely due to the aircraft being in a state of flux. Modifications and improvements were added to the production line as they occurred, causing a number of differing models to appear concurrently or out of sequence. It quickly became apparent that in the Bf 109 the Luftwaffe had a world beating fighter, but shortcomings with power and armament were highlighted by the test and evaluation E-Stelle units and by the pilots who first took the Bf 109 into combat over Spain. These evaluation comments and the operational feedback caused Messerschmitt to reexamine several facets of his fighter, and in solving the problems the company rapidly created a range of prototypes and sub variants of the four basic models. For simplicity I will take the individual versions in alphabetical rather than chronological order, as with some of these aircraft the picture is obscure enough without complicating matters unnecessarily.