Arado Ar 240
| Ar 240 | |
|---|---|
 |
|
| Model of an Ar 240 | |
| Role | Zerstörer (Destroyer) prototype |
| Manufacturer | Arado Flugzeugwerke |
| Designer | Walter Blume |
| First flight | 25 June 1940 |
| Primary user | Luftwaffe |
| Number built | 14 |
The Arado Ar 240 was a German twin-engine multi-role heavy fighter aircraft developed for the Luftwaffe during World War II by Arado Flugzeugwerke. Its first flight was in 1940, but problems with the design hampered development and it remained only marginally stable throughout the prototype phase. The project was eventually cancelled, with the existing airframes used for a variety of test purposes.
The Ar 240 came about as the response to a 1938 request for a much more capable second generation heavy fighter to replace the Messerschmitt Bf 110, which was becoming outdated. Both Arado and Messerschmitt responded. Messerschmitt's response, the Me 210, was a totally new design, but thanks to Messerschmitt's experience with the Zerstörer ("Destroyer") concept, it would be able to enter service quickly. Arado's design was considerably more ambitious for the smaller firm, a dream project of Arado's chief designer, Walter Blume, since the mid-1930s. While it would take some time before deliveries of the Arado design could begin, the Reichsluftfahrtministerium (German Aviation Ministry, RLM) was nevertheless interested enough to order prototypes of both designs.
Prior to this point, Arado had invested heavily in several lines of basic research. One was the development of the "Arado travelling flap" which offered excellent low-speed lift performance. Another was ongoing work into the design and construction of pressurized cockpits, which dramatically lowered pilot fatigue for any flight above about 4,500 m (14,760 ft). Finally, they had also invested in a technically advanced remote-control defensive gun system, which they had been experimenting with for several years. The system used a gunsight located in the rear cockpit, operated by the navigator/gunner, which had optics on both the top and bottom of the aircraft allowing aim in any direction. The gunsight was hydraulically connected to well-streamlined "pancake"-shaped turrets on the top and bottom of the aircraft. For the Ar 240 design, the Arado engineers combined all this research into a single airframe.
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