Robert Whitehead (engineer)
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Robert Whitehead was an English engineer who was most famous for developing the first effective self-propelled naval torpedo.
Whitehead Torpedo and Ship-factory in Fiume, 1910
Robert Whitehead (right) and his son (left) with a battered test torpedo in Fiume, Austria-Hungary c.1875
Chilean torpedo gunboat Almirante Lynch
Ludwig Obry
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Ludwig Obry was an Austrian engineer and naval officer of the Austrian Navy who invented a gyroscopic device for steering a torpedo in 1895.
Ludwig Obry's gyroscopic mechanism for steering a Whitehead torpedo, called the "Obry Gear" by the US Navy