Swiss Helicopter History
by Markus Herzig

Stierlin-Devaud SD-90 s/n: 1 Built: 1971 s/n History: HB-YAD
Operator / Owner Registered Cancelled Remarks
Devaud Michel 1972-05-09 1989-04-11 preserved in Switzerland

HB-YAD of Michel Devaud at Gruyeres - Photo by Daniel Burgunder © Sep-75

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