Structural tests on an experimental helicopter platform
1966
S. 65 - 91
Ill., graph. Darst.
Buch
Englisch
Experimental helicopter platform
Engineering Index Backfile | 1963
|Experimental flight tests of XH-51A compound helicopter
Engineering Index Backfile | 1968
|Engineering Index Backfile | 1947
|Forest survey tests helicopter
Engineering Index Backfile | 1947
|