Messerschmitt Me 209 (second design)
| Industry | Aerospace, Defense |
|---|---|
| Founded | 1938 |
| Founder | Willy Messerschmitt |
| Headquarters | Germany |
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The second iteration of the Me 209 was a late World War II initiative led by Willy Messerschmitt aimed at developing an improved variant of the Luftwaffe’s mainstay fighter, the Bf 109. Despite sharing the Me 209 designation, this model was entirely unrelated to the earlier Me 209.
The 8-209 airframe code, assigned by the RLM to Messerschmitt for two Me 209 designs following the July 1938 designation changes, was applied to two distinct projects during the late 1930s and early 1940s. The initial Me 209 was a specialized single-engine aircraft designed solely for setting speed records, with minimal consideration given to its potential as a combat fighter.
Design and development
In 1943, the Me 209 designation was reassigned to a concept involving a significantly redesigned version of the Bf 109. This new Me 209 was intended to rival high-performance fighters such as Focke-Wulf’s Fw 190 D-9 and Ta 152. Following the pattern of these advanced derivatives of Kurt Tank’s designs, the updated Me 209 retained much of the proven Bf 109G airframe.
However, due to a scarcity of the originally planned DB 603A engines, the development team had to substitute it with the Junkers’ Jumo 213A engine. Although the Jumo 213’s design—with its 35-litre displacement—was intentionally made to share many service points with the larger DB 603 (44.52-litre inverted V12), this replacement necessitated modifications to both the engine cowling and cooling arrangements. The most noticeable alteration involved relocating the air intake: while the DB 603’s supercharger intake was positioned on the port side, standard for Daimler-Benz inverted V12 engines, the Jumo 213’s intake was situated on the starboard side, consistent with earlier Junkers Jumo 211 engines.
The Me 209 incorporated several design changes including a redesigned tail section, new wings, wide-track landing gear, a taller vertical stabilizer, and an annular radiator for its inline engine. This radiator configuration gave the powerplant a superficial similarity to radial engines and mirrored the setup used on the Fw 190D, which also employed the Jumo 213 engine. These extensive modifications ultimately conflicted with the initial goal of producing an improved aircraft closely resembling the Bf 109G.
The Me 209 V5 was armed with a single Motorkanone mounted 30 mm (1.18 in) MK 108 cannon along with two wing-root-mounted 13 mm (.51 in) MG 131 machine guns. The V6 variant marked the first conversion to utilize the Jumo 213 engine and replaced the MG 131s with twin 20 mm MG 151/20 cannon. Additionally, the Me 209H V1 was developed as a high-altitude model featuring extended wings and powered by a DB 603 engine.
Testing
The program was abruptly terminated following the initial flight of the Me 209 V5 prototype in late 1943. It demonstrated a maximum speed 50 km/h (31 mph) lower than that of the Fw 190D and failed to deliver any enhancements in maneuverability. Due to these unsatisfactory results, the Me 209 initiative was discontinued.
Specifications (Me 209 V5)

See also
References
- Notes
- Bibliography
- Green, William. War Planes of the Second World War, Fighters, vol. I. London: Hanover House, 1960.
- Jackson, Robert. Infamous Aircraft: Dangerous Designs and their Vices. Barnsley, Yorkshire, UK: Pen and Sword Aviation, 2005. ISBN 1-84415-172-7.
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de:Messerschmitt Me 209#Me 209 als Weiterentwicklung der Bf 109