Blume Bl.502 Light Aircraft

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Table of Contents

Concept and Development

Professor Walter Blume, former chief designer of “Arado Flugzeugwerke GmbH”, began work in the mid-1950s on a project for a four-seater light all-metal monoplane. The prototype, the Blume Bl.500, was built by “Focke-Wulf” and made its first flight on March 14, 1957.

Technical Specifications

This aircraft was a cantilever low-wing monoplane, featuring a traditional tail unit and retractable tricycle landing gear. Its design emphasized efficiency and robustness for a light aircraft, aiming for optimal performance and ease of operation.

Production Variants

Two production variants emerged. The Bl.502, which shared the single Avco Lycoming O-320-A engine configuration with the prototype. The Bl.503, conversely, incorporated an upgraded Avco Lycoming O-360-A1A engine, delivering 180 hp (134 kW).

Technical Specifications

Modification	Bl.502
Wingspan, m	10. 50
Length, m	8. 15
Height, m	2.40
Wing area, m2	15.00
Empty weight	670
Maximum takeoff weight	1120
Engine type	1 Piston engine Lycoming O-320-A
Power, hp	1 x 150
Max. diving speed, km/h	250
Cruising speed, km/h	205
Practical range, km	900
Maximum rate of climb, m/min	318
Practical ceiling, m	4800
Crew, crew members	1
Payload:	3 passengers

Image and diagram gallery of the Blume Bl.502 Light Aircraft

Germany

ArchivoAéreo Editorial Team

A group of aviation researchers and enthusiasts dedicated to documenting and preserving global aeronautical history. All articles are reviewed to ensure historical accuracy.

Sources & Accuracy

The information presented in this technical sheet has been compiled from declassified flight manuals, historical archives, and specialized literature. While we strive for maximum accuracy, some performance data may vary depending on the specific variant or operational conditions.

BL.502	BL.502
BL.502