Bölkow Bo 103

{{Infobox aircraft

|name= Bo 103

|image= File:Boelkow Bo 103 flight.jpg

|caption= Bölkow Bo 103 prototype in flight

|type= Experimental helicopter

|national_origin= West Germany

|manufacturer= Bölkow

|designer=

|first_flight= 14 September 1961[https://twitter.com/AirbusHeli/status/908332161887096832 First flight of the Boelkow #BO103 with test pilot: Werner Kurze], Twitter

|introduction=

|retired=

|status=

|primary_user=

|more_users=

|produced=

|number_built= 1

|variants=

}}

The Bölkow Bo 103 was an ultralight experimental helicopter flown in West Germany in 1961. It was designed for reconnaissance and command-control purposes and constructed by Bölkow Entwicklungen KG as part of a research order by the German Federal Ministry of Defense.

While the mechanics of the aircraft were based on the Bo 102 captive training rig, the Bo 103 was capable of fully independent flight. In configuration, it was absolutely minimalist - consisting of nothing more than a tubular frame to which the dynamic components and the pilots seat were attached, although a small fibreglass cabin was eventually attached. The aircraft retained the Bo 102's single-rotor of Glass-reinforced plastic, and proved that this was suitable for true flight. A single prototype was built, but work was stopped in 1962 due to lack of interest on the part of the West German armed forces.{{cite web |title=Bölkow Bo 103 |work=History of Aviation |publisher=EADS N.V. |url=http://www.eads.com/1024/en/eads/history/airhist/1960_1969/bo103_1961.html |url-status=dead |archive-url=https://web.archive.org/web/20070929102615/http://www.eads.com/1024/en/eads/history/airhist/1960_1969/bo103_1961.html |archive-date=2007-09-29 }} The prototype is preserved at the Hubschraubermuseum Bückeburg.