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• Torpedo_Data_Computer abstract "The Torpedo Data Computer (TDC) was an early electromechanical analog computer used for torpedo fire-control on American submarines during World War II. Britain, Germany, and Japan also developed automated torpedo fire control equipment, but none were as advanced as the US Navy's TDC, as it was able to automatically track the target rather than simply offering an instantaneous firing solution. This unique capability of the TDC set the standard for submarine torpedo fire control during World War II.Replacing the previously standard hand-held slide rule-type devices (known as the "banjo" & "is/was"), the TDC was designed to provide fire-control solutions for submarine torpedo firing against ships running on the surface (surface warships used a different computer). It had an array of handcranks, dials, and switches for data input and display. To generate a fire control solution, it required inputs onsubmarine course and speed, which were read automatically from the submarine's gyrocompass and pitometer logestimated target course, speed, and range information (obtained using data from the submarine's periscope, Target Bearing Transmitter (TBT), radar, and sonar)torpedo type and speed (type was needed to deal with the different torpedo ballistics)The TDC performed the trigonometric calculations required to compute a target intercept course for the torpedo. It also had an electromechanical interface to the torpedoes, allowing it to automatically set courses while torpedos were still in their tubes, ready to be fired.The TDC's target tracking capability was used by the fire control party to continuously update the fire control solution even while the submarine was maneuvering. The TDC's target tracking ability also allowed the submarine to accurately fire torpedoes even when the target was temporarily obscured by smoke or fog.The TDC was a rather bulky addition to the sub's conning tower and required two extra crewmen: one as an expert in its maintenance, the other as its actual operator. Despite these drawbacks, the use of the TDC was an important factor in the successful commerce raiding program conducted by American submarines during the Pacific campaign of World War II. Accounts of the American submarine campaign in the Pacific often cite the use of TDC. Some officers became highly skilled in its use, and the navy set up a training school for its use.Two upgraded World War II-era U.S. Navy fleet submarines (USS Tusk and Cutlass) with their TDCs continue to serve with Taiwan's navy and U.S. Nautical Museum staff are assisting them with maintaining their equipment. The museum also has a fully restored and functioning TDC from USS Pampanito, docked in San Francisco.".
• Torpedo_Data_Computer thumbnail TDCfullview.jpg?width=300.
• Torpedo_Data_Computer wikiPageExternalLink Model.htm.
• Torpedo_Data_Computer wikiPageExternalLink Newell.pdf.
• Torpedo_Data_Computer wikiPageExternalLink torpedo.html.
• Torpedo_Data_Computer wikiPageExternalLink h41761.jpg.
• Torpedo_Data_Computer wikiPageExternalLink index.htm.
• Torpedo_Data_Computer wikiPageExternalLink tdc.htm.
• Torpedo_Data_Computer wikiPageExternalLink tdc.html.
• Torpedo_Data_Computer wikiPageID "33731726".
• Torpedo_Data_Computer wikiPageRevisionID "603416648".
• Torpedo_Data_Computer hasPhotoCollection Torpedo_Data_Computer.
• Torpedo_Data_Computer subject Category:Analog_computers.
• Torpedo_Data_Computer subject Category:Electro-mechanical_computers.
• Torpedo_Data_Computer subject Category:Military_computers.
• Torpedo_Data_Computer subject Category:Submarine_components.
• Torpedo_Data_Computer type AnalogComputer102708224.
• Torpedo_Data_Computer type AnalogComputers.
• Torpedo_Data_Computer type Artifact100021939.
• Torpedo_Data_Computer type Computer103082979.
• Torpedo_Data_Computer type Conveyance103100490.
• Torpedo_Data_Computer type Craft103125870.
• Torpedo_Data_Computer type Device103183080.
• Torpedo_Data_Computer type Electro-mechanicalComputers.
• Torpedo_Data_Computer type Instrumentality103575240.
• Torpedo_Data_Computer type Machine103699975.
• Torpedo_Data_Computer type MilitaryComputers.
• Torpedo_Data_Computer type MilitaryVehicle103764276.
• Torpedo_Data_Computer type Object100002684.
• Torpedo_Data_Computer type PhysicalEntity100001930.
• Torpedo_Data_Computer type Ship104194289.
• Torpedo_Data_Computer type Submarine104347754.
• Torpedo_Data_Computer type Submarines.
• Torpedo_Data_Computer type Submersible104348184.
• Torpedo_Data_Computer type Vehicle104524313.
• Torpedo_Data_Computer type Vessel104530566.
• Torpedo_Data_Computer type Warship104552696.
• Torpedo_Data_Computer type Whole100003553.
• Torpedo_Data_Computer comment "The Torpedo Data Computer (TDC) was an early electromechanical analog computer used for torpedo fire-control on American submarines during World War II. Britain, Germany, and Japan also developed automated torpedo fire control equipment, but none were as advanced as the US Navy's TDC, as it was able to automatically track the target rather than simply offering an instantaneous firing solution.".
• Torpedo_Data_Computer label "Torpedo Data Computer".
• Torpedo_Data_Computer label "Torpedo Data Computer".
• Torpedo_Data_Computer label "Torpedo Data Computer".
• Torpedo_Data_Computer sameAs Torpedo_Data_Computer.
• Torpedo_Data_Computer sameAs m.034ttx.
• Torpedo_Data_Computer sameAs Q4051606.
• Torpedo_Data_Computer sameAs Q4051606.
• Torpedo_Data_Computer sameAs Torpedo_Data_Computer.
• Torpedo_Data_Computer wasDerivedFrom Torpedo_Data_Computer?oldid=603416648.
• Torpedo_Data_Computer depiction TDCfullview.jpg.
• Torpedo_Data_Computer isPrimaryTopicOf Torpedo_Data_Computer.