The DTCN F17 was a wire-guided anti-surface ship torpedo originally produced in 1971. France, Spain, and Saudi Arabia were its primary users. As of 2021, there were still used on Pakistan Navy's Hashmat-class submarines. A control panel above the launch platform allowed for instantaneous switching between two modes, wire-guided or autonomous passive homing.
References
Submarines of the World, Jackson, Robert. Pg.290 "French Torpedoes after World War II". Navweaps.com. 2006-12-12. Archived from the original on 2009-12-08. Retrieved 2009-11-20.
== Further reading == Friedman, Norman (1991). The Naval Institute Guide to World Naval Weapons Systems 1991/1992. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-288-5. Watts, Anthony J., ed. (1997). Jane's Underwater Warfare Systems 1997-1998. Coulsdon, Surrey: Jane's Information Group. ISBN 0-7106-1561-2. Zimmerman, Stan (2000). Submarine Technology for the 21st Century (2nd ed.). Victoria, British Columbia: Trafford Publishing. ISBN 1-55212-330-8.