Mark 9 (Dutch, 21 inch)

Mark 9 (Dutch).

Category.	Data.
Type	Conventional WW2 torpedo.
Nationality	British\Dutch.
Made in	1930 (for the Royal Navy) and 1943 for the Dutch version.
Retired	1962 (Royal Netherlands Navy).
Designer	N\A British organisation.
Manufacturer	N\A British organisation.
Variants	1, the British version.
Diameter	53,3 cm (21 inch).
Speed	40 knots.
Warhead	365 kg of N\A.
Operational range	15000 m @ 40 knots and 17000 m @ 35 knots.
Guidance system	N\A, but probably akin to aircraft of comparable role, configuration and era.
Launch platform	Destroyers, submarines and coastal batteries on Curaçao. Curaçao's supply of 17.7 inch ones were accidentally dumped outside Willemstad in 1944 or 1945.
Weight.	1725 kg.
Sources.	http://www.netherlandsnavy.nl/Torpedoes.html and http://diodon349.com/Torpedoman/TM_Stuff/torpedoes_of_the_royal_netherlands_navy.htm.