Gyroplane Hawk 4: Tragfähige Idee
Aerokurier ; 43 , 9
1999
Article (Journal)
German
Cessna considers Skylane variant . Groen takes orders for Hawk 4 gyroplane
Online Contents | 1999
Engineering Index Backfile | 1938
|Engineering Index Backfile | 1937
British Library Conference Proceedings | 2003
|Engineering Index Backfile | 1938
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