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The Blume Bl.500, Bl.502, and Bl.503 were a family of four-seat light aircraft designed in
West Germany by Dr
Walter Blume in the late 1950s.
Design and development
Derived from his
Arado Ar 79
The Arado Ar 79 was a German aircraft of the 1930s, designed as an aerobatic two-seat trainer and touring aircraft.Donald, p. 60.
The Ar 79 was a monoplane with retractable, tailwheel undercarriage. The wings were constructed of fabric over ply ...
, the basic design shared by all models was that of a conventional low-wing
cantilever monoplane with
retractable tricycle undercarriage and
all-metal construction. The Bl.500
prototype
A prototype is an early sample, model, or release of a product built to test a concept or process. It is a term used in a variety of contexts, including semantics, design, electronics, and Software prototyping, software programming. A prototyp ...
was built for Blume at the
Focke-Wulf
Focke-Wulf Flugzeugbau AG () was a German manufacturer of civil and military aircraft before and during World War II. Many of the company's successful fighter aircraft designs were slight modifications of the Focke-Wulf Fw 190. It is one of the ...
plant and was powered by a
Lycoming O-320 engine of 112 kW (150 hp). This led to a modified version, the Bl.502 that achieved German
type certification and was offered for sale alongside the generally similar Bl.503 with a more powerful engine. However, no orders were forthcoming and Blume abandoned the project.
Operational history
The final example of the design, the Blume Bl.503 was still active in 1965.
Variants
;Bl.500
:prototype
;Bl.502
:intended production version with
Lycoming O-320
;Bl.503
:proposed production version with
Lycoming O-360. A single example was completed.
Specifications (Bl.502)
See also
References
*
*
* {{cite book , title=World Aircraft Information Files , publisher=Bright Star Publishing, location=London , pages=File 890 Sheet 49
Bl502
Single-engined tractor aircraft
Low-wing aircraft
1950s German civil utility aircraft
Aircraft first flown in 1957