Blume Bl.502
__NOTOC__
{{Infobox aircraft
|name=Bl.502
|image=Blume BL.503 D-EKUB Riem 30.07.65 edited-4.jpg
|caption=The sole Blume Bl.503 to be completed pictured at Munich's Riem Airport in 1965
|type=Civil utility aircraft
|manufacturer=Walter Blume
|national_origin=West Germany
|designer=Walter Blume
|first_flight=14 March 1957
|introduction=
|retired=
|status=
|primary_user=The designer
|more_users=
|produced=
|number_built=2
|variants=
}}
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 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 was built for Blume at the Focke-Wulf 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)
{{Aircraft specs
|ref=Jane's All The World's Aircraft 1961–62{{Harvnb|Taylor|1961|p=77}}
|prime units?=met
|genhide=
|crew=1
|capacity=3 passengers
|length m=8.15
|length ft=
|length in=
|span m=10.50
|span ft=
|span in=
|height m=2.40
|height ft=
|height in=
|wing area sqm=15.0
|wing area sqft=
|aspect ratio=7.35:1
|empty weight kg=670
|empty weight lb=
|gross weight kg=1120
|gross weight lb=
|fuel capacity=
|eng1 number=1
|eng1 name=Lycoming O-320
|eng1 type=air-cooled flat-four engine
|eng1 kw=
|eng1 hp=150
|prop blade number=
|prop name=
|prop dia m=
|prop dia ft=
|prop dia in=
|perfhide=
|max speed kmh=250
|max speed mph=
|max speed kts=
|max speed mach=
|cruise speed kmh=220
|cruise speed mph=
|cruise speed note=(70% power)
|range km=900
|range miles=
|range nmi=
|endurance=4.1 hr
|ceiling m=4800
|ceiling ft=
|climb rate ms=
|climb rate ftmin=1005
|more performance=*Takeoff distance to 15 m (50 ft): {{convert|375|m|ft|abbr=on}}
|avionics=
}}
See also
References
{{reflist}}
- {{cite book|last=Taylor|first=John W. R.|title=Jane's All The World's Aircraft 1961–62|year=1961|publisher=Sampson Low, Marston & Company|location=London|author-link=John W. R. Taylor}}
- {{cite book |last= Taylor |first= Michael J. H. |title=Jane's Encyclopedia of Aviation |year=1989 |publisher=Studio Editions |location=London |pages=169 }}
- {{cite book |title=World Aircraft Information Files |publisher=Bright Star Publishing|location=London |pages=File 890 Sheet 49 }}
Category:Single-engined tractor aircraft
Category:1950s German civil utility aircraft