This HTML5 document contains 108 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

PrefixIRI
dctermshttp://purl.org/dc/terms/
yago-reshttp://yago-knowledge.org/resource/
dbohttp://dbpedia.org/ontology/
n19http://dbpedia.org/resource/File:
foafhttp://xmlns.com/foaf/0.1/
n12http://dbpedia.org/resource/5-inch/
n8https://global.dbpedia.org/id/
yagohttp://dbpedia.org/class/yago/
dbthttp://dbpedia.org/resource/Template:
n4http://www.maritime.org/doc/firecontrol/
rdfshttp://www.w3.org/2000/01/rdf-schema#
n27http://www.maritime.org/doc/stablemk6/
n28http://www.maritime.org/doc/computermk1-maint-vol1/
freebasehttp://rdf.freebase.com/ns/
dbpedia-plhttp://pl.dbpedia.org/resource/
n29http://www.maritime.org/doc/computermk1/
n14http://www.navsource.org/archives/01/
n22http://commons.wikimedia.org/wiki/Special:FilePath/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
owlhttp://www.w3.org/2002/07/owl#
n25http://www.eugeneleeslover.com/USNAVY/
wikipedia-enhttp://en.wikipedia.org/wiki/
dbphttp://dbpedia.org/property/
dbchttp://dbpedia.org/resource/Category:
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
n15http://www.ibiblio.org/hyperwar/USN/ref/Ordnance/FCS-Mark37/
goldhttp://purl.org/linguistics/gold/
wikidatahttp://www.wikidata.org/entity/
dbrhttp://dbpedia.org/resource/

Statements

Subject Item
dbr:Battle_off_Samar
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:USS_Joseph_P._Kennedy_Jr.
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Analog_computer
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Track_algorithm
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Gearing-class_destroyer
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Montana-class_battleship
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Armament_of_the_Iowa-class_battleship
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Ship_gun_fire-control_system
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Sims-class_destroyer
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Mechanical_computer
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:USS_Cushing_(DD-797)
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:USS_Damato
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
n12:25-caliber_gun
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Allen_M._Sumner-class_destroyer
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Fletcher-class_destroyer
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Director_(military)
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Mark_8_Fire_Control_Computer
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Space_warfare
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Mark_I
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
dbo:wikiPageDisambiguates
dbr:Mark_I_Fire_Control_Computer
Subject Item
dbr:Mark_I_Fire_Control_Computer
rdf:type
yago:WikicatMilitaryComputers yago:Instrumentality103575240 yago:Computer103082979 yago:PhysicalEntity100001930 yago:Object100002684 yago:Whole100003553 yago:Artifact100021939 yago:Device103183080 dbo:MilitaryUnit yago:Machine103699975 yago:WikicatComputers
rdfs:label
Mark I Fire Control Computer Mark I Fire Control Computer
rdfs:comment
The Mark 1, and later the Mark 1A, Fire Control Computer was a component of the Mark 37 Gun Fire Control System deployed by the United States Navy during World War II and up to 1991 and possibly later. It was originally developed by Hannibal C. Ford of the Ford Instrument Company. and William Newell. It was used on a variety of ships, ranging from destroyers (one per ship) to battleships (four per ship). The Mark 37 system used tachymetric target motion prediction to compute a fire control solution. It contained a target simulator which was updated by further target tracking until it matched. Mark I Fire Control Computer i jego późniejsza wersja Mark IA, analogowy przelicznik artyleryjski z okresu II wojny światowej będący częścią amerykańskiej centrali artyleryjskiej Mark 37 używanej na okrętach US Navy. W przypadku niszczycieli na okręcie mieścił się jeden system kierowania ogniem, w przypadku pancerników – aż cztery (dziobowy, rufowy, prawo- i lewoburtowy). Mark I ważył prawie 1,5 tony i mierzył ok. 1600x970x1200 mm.
foaf:depiction
n22:Mark_1A_Fire_Control_Computer_Controls.jpg n22:FletcherMk37GunDirector.png
dcterms:subject
dbc:Artillery_operation dbc:Mechanical_computers dbc:Military_computers dbc:Fire-control_computers_of_World_War_II dbc:Military_equipment_introduced_in_the_1930s
dbo:wikiPageID
8762082
dbo:wikiPageRevisionID
1104303114
dbo:wikiPageWikiLink
dbr:Jet_aircraft dbr:Gun_Fire_Control_Systems dbc:Mechanical_computers dbr:Barbette dbr:Battleship dbc:Artillery_operation dbr:Electromechanical dbr:Tachymetric dbr:Relative_motion n19:Mark_1A_Fire_Control_Computer_Controls.jpg dbr:Pitometer_log dbr:Propellant dbr:Synchro dbr:Anemometer dbr:Director_(military) dbr:Muzzle_velocity dbc:Military_computers dbr:Ford_Instrument_Company dbr:Battle_damage dbr:Sailor dbr:Projectile dbr:Ship_gun_fire-control_system dbr:United_States_Navy dbr:Gyroscopic dbr:Admiralty_Fire_Control_Table dbr:Destroyer dbr:World_War_II dbr:Anti-aircraft_warfare dbr:Gun_data_computer dbr:High_Angle_Control_System dbc:Military_equipment_introduced_in_the_1930s dbr:Magnus_effect dbc:Fire-control_computers_of_World_War_II dbr:Gun_mounts n19:FletcherMk37GunDirector.png dbr:Analog_computer dbr:Heavy_cruiser dbr:Parallax dbr:Mark_8_Fire_Control_Computer
dbo:wikiPageExternalLink
n4:index.htm n14:57o.htm n15:index.html n25:CHAPTER-25-A.html n27:index.htm n28:index.htm n29:index.htm
owl:sameAs
n8:4rGxe freebase:m.027hvtm wikidata:Q6768176 yago-res:Mark_I_Fire_Control_Computer dbpedia-pl:Mark_I_Fire_Control_Computer
dbp:wikiPageUsesTemplate
dbt:Short_description dbt:Reflist dbt:USS dbt:Convert
dbo:thumbnail
n22:Mark_1A_Fire_Control_Computer_Controls.jpg?width=300
dbo:abstract
Mark I Fire Control Computer i jego późniejsza wersja Mark IA, analogowy przelicznik artyleryjski z okresu II wojny światowej będący częścią amerykańskiej centrali artyleryjskiej Mark 37 używanej na okrętach US Navy. W przypadku niszczycieli na okręcie mieścił się jeden system kierowania ogniem, w przypadku pancerników – aż cztery (dziobowy, rufowy, prawo- i lewoburtowy). Centrala artyleryjska używana była do kierowania ogniem zarówno do celów nawodnych (naziemnych) jak i powietrznych. Podstawowe dane wejściowe komputera stanowiły takie zmienne jak kurs, szybkość i odległość celu (wprowadzane ręcznie na podstawie obserwacji optycznych lub za pomocą danych uzyskanych z radaru, informacje z dalocelownika i radaru były nieustanie przekazywane do komputera. Innymi danymi przekazywanymi automatycznie do komputera była szybkość i kurs okrętu, a także prędkość i kierunek wiatru oraz temperatura powietrza. Obsługujący komputer operatorzy ręcznie wprowadzali dane takie jak typ i temperatura prochu, wagę pocisków i ilość strzałów oddanych do tej pory – wszystkie z tych zmiennych miały wpływ na prędkość wylotową pocisku. Mark I ważył prawie 1,5 tony i mierzył ok. 1600x970x1200 mm. The Mark 1, and later the Mark 1A, Fire Control Computer was a component of the Mark 37 Gun Fire Control System deployed by the United States Navy during World War II and up to 1991 and possibly later. It was originally developed by Hannibal C. Ford of the Ford Instrument Company. and William Newell. It was used on a variety of ships, ranging from destroyers (one per ship) to battleships (four per ship). The Mark 37 system used tachymetric target motion prediction to compute a fire control solution. It contained a target simulator which was updated by further target tracking until it matched. Weighing more than 3,000 pounds (1,400 kg), the Mark 1 itself was installed in the plotting room, a watertight compartment that was located deep inside the ship's hull to provide as much protection against as possible. Essentially an electromechanical analog computer, the Mark 1 was electrically linked to the gun mounts and the Mark 37 gun director, the latter mounted as high on the superstructure as possible to afford maximum visual and radar range. The gun director was equipped with both optical and radar range finding, and was able to rotate on a small barbette-like structure. Using the range finders and telescopes for bearing and elevation, the director was able to produce a continuously varying set of outputs, referred to as line-of-sight (LOS) data, that were electrically relayed to the Mark 1 via synchro motors. The LOS data provided the target's present range, bearing, and in the case of aerial targets, altitude. Additional inputs to the Mark 1A were continuously generated from the stable element, a gyroscopic device that reacted to the roll and pitch of the ship, the pitometer log, which measured the ship's speed through the water, and an anemometer, which provided wind speed and direction. The Stable Element would now be called a vertical gyro. In "Plot" (the plotting room), a team of sailors stood around the four-foot-tall (1.2 m) Mark 1 and continuously monitored its operation. They would also be responsible for calculating and entering the average muzzle velocity of the projectiles to be fired before action started. This calculation was based on the type of propellant to be used and its temperature, the projectile type and weight, and the number of rounds fired through the guns to date. Given these inputs, the Mark 1 automatically computed the lead angles to the future position of the target at the end of the projectile's time of flight, adding in corrections for gravity, relative wind, the magnus effect of the spinning projectile, and parallax, the latter compensation necessary because the guns themselves were widely displaced along the length of the ship. Lead angles and corrections were added to the LOS data to generate the line-of-fire (LOF) data. The LOF data, bearing and elevation, as well as the projectile's fuze time, was sent to the mounts by synchro motors, whose motion actuated hydraulic servos with excellent dynamic accuracy to aim the guns. Once the system was "locked" on the target, it produced a continuous fire control solution. While these fire control systems greatly improved the long-range accuracy of ship-to-ship and ship-to-shore gunfire, especially on heavy cruisers and battleships, it was in the anti-aircraft warfare mode that the Mark 1 made the greatest contribution. However, the anti-aircraft value of analog computers such as the Mark 1 was greatly reduced with the introduction of jet aircraft, where the relative motion of the target became such that the computer's mechanism could not react quickly enough to produce accurate results. Furthermore, the target speed, originally limited to 300 knots by a mechanical stop, was twice doubled to 600, then 1,200 knots by gear ratio changes. The design of the postwar Mark 1A may have been influenced by the Bell Labs Mark 8, which was developed as an all electrical computer, incorporating technology from the M9 gun data computer as a safeguard to ensure adequate supplies of fire control computers for the USN during WW2. Surviving Mark 1 computers were upgraded to the Mark 1A standard after World War II ended. Among the upgrades were removing the vector solver from the Mark 1 and redesigning the reverse coordinate conversion scheme that updated target parameters. The scheme kept the four component integrators, obscure devices not included in explanations of basic fire control mechanisms. They worked like a ball–type computer mouse, but had shaft inputs to rotate the ball and to determine the angle of its axis of rotation. The round target course indicator on the right side of the star shell computer with the two panic buttons is a holdover from WW II days when early tracking data and initial angle–output position of the vector solver caused target speed to decrease. Pushbuttons slewed the vector solver quickly.
gold:hypernym
dbr:Component
prov:wasDerivedFrom
wikipedia-en:Mark_I_Fire_Control_Computer?oldid=1104303114&ns=0
dbo:wikiPageLength
8384
foaf:isPrimaryTopicOf
wikipedia-en:Mark_I_Fire_Control_Computer
Subject Item
dbr:Gun_data_computer
dbo:wikiPageWikiLink
dbr:Mark_I_Fire_Control_Computer
Subject Item
wikipedia-en:Mark_I_Fire_Control_Computer
foaf:primaryTopic
dbr:Mark_I_Fire_Control_Computer