System consisting of two rudders of different sizes, the smaller one being in front and controlling movement of larger.
A new system of automatic balanced rudder for air, water and submarine craft
Indian Eng
Indian Engineering ; 69 , n 1
1921
2 pages
9 Figs. on Supp. plate
Article (Journal)
English
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Engineering Index Backfile | 1931
|Engineering Index Backfile | 1926