Drzewiecki drop collar

The Drzewiecki drop collar was an external torpedo launching system most commonly used by the French and Imperial Russian Navies in the first two decades of the 20th century. It was designed by Stefan Drzewiecki, a Polish engineer and inventor.

Drzewiecki drop collar

The Drzewiecki drop collar was an external torpedo launching system most commonly used by the French and Imperial Russian Navies in the first two decades of the 20th century. It was designed by Stefan Drzewiecki, a Polish engineer and inventor.