The Focke-Wulf Fw 190, one of the most aesthetically attractive and functionally successful aircraft to emerge from the Second World War, was the brainchild of Dipl. Ing. Kurt Tank, technical director of the Focke- Wulf Flugzeugbau.
The designer of many impressive projects, Tank achieved perhaps his most spectacular success with the Fw 190.
Combining a bulky air-cooled engine with a slim airframe, he produced a beautifully proportioned aeroplane which completely avoided the cumbersome rotundity of most other radial-engined fighters of the period.
The Focke-Wulf’s appearance at the fighting front ushered in a period of heavy losses and high-level alarm in the R.A.F.
Superior in many respects to contemporary British equipment, the nimble radial-engined “Butcher-bird”* forced a loss/victory ratio of at least 2/1 on Fighter Command Spitfire Vs in the first few
months of its operational career.
In the autumn of 1937, the German Reichsluftfahrt ministerium instructed the Focke- Wulf Flugzeugbau, uncommitted to any other major project, to submit a single-seat fighter design to supplement the Messerschmitt Bf 109, which had entered squadron service with the young Luftwaffe eighteen months previously.
Of the twin proposals put forward by Tank, one was planned around the B.M.W. 139 radial engine while the other was based on the liquid-cooled Daimler-Benz DB 601.
The climate of opinion in contemporary aviation circles was in favour of the low-drag characteristics of in-line engines, but nevertheless the radial-engined design was accepted.
Considerable demand for the Daimler-Benz powerplant was partly responsible.
Detail design work commenced in mid-l938, culminating in the completion of the first prototype, designated Fw 190V1, in the spring of 1939.
Designed for production by widely-dispersed sub-contractors, the aircraft had other features which strongly recommended it to the Luftwaffe.
The wide-track undercarriage eliminated one of the weaknesses most noticeable in the Bf 109; and front-line maintenance requirements were cut to a minimum.
The Fw 190V1 was flown for the first time on June lst 1939 by chief Focke-Wulf test pilot Hans Sander.
After five flights the machine was handed over to the Luftwaffe for service trials at the Rechlin test establishment.
Despite the lack of forward visibility while taxi-ing, which was to prove fatal to inexperienced pilots later in the Fw 190’s career, the Luftwaffe pilots were extremely impressed by the new fighter.
The prototype displayed superb handling qualities, well-balanced controls and brisk acceleration.
By October the second prototype, the Fw 190V2, was ready for testing.
Featuring a large ducted spinner instead of an engine cooling fan, it was armed with two 79 mm. MG 17 and two 13 mm. MG 131 machine guns.
After armament tests and some 50 hours of flight trials the machine, which had been plagued from the outset by engine overheating, was destroyed following a crankshaft failure.
Later prototypes differed in being powered by the improved B.M.W. 801C engine, offering 1,600 hp.
With strengthened engine mounts and the cockpit moved further back, these models were free from the heat and discomfort noticed by pilots of the earlier prototypes.
* The Fw 190A-l was christened “Wurger” or “Butcher-bird”.