Etw military navy sextant
Prerequisite None
Research Points Needed
Building Needed Admiralty
Leads To Longitude Watch
Stream Naval, Military
Sextant is a Technology in Empire: Total War.


This precision navigation tool allows a skilled user to calculate his latitude.

The basic purpose is to measure the height of a star or other heavenly object above the horizon. If a measurement of the sun's height at noon is taken, then the measured angle relates directly to the latitude of the observer using the sextant. Skilled navigators can also use the moon or any star listed in a naval almanac for the same purpose. If a navigator uses his sextant horizontally, he can measure the angle between and two prominent landmarks and so, by triangulation, accurately fix his own position on a chart. This is a huge advance on any method of dead reckoning, even if it does not help in establishing longitude.

A sextant is a delicate thing, and requires skilled repairs if damaged.

Historically, the sextant was a development of earlier devices like the backstaff and the astrolabe. The sextant is so called because the measuring arc is exactly one-sixth of a circle. Earlier attempts at similar instruments were the octant (one-eighth) and the quadrant (one-quarter); both used the same basic sighting method, but the arc was either too small to be practical or made the device unwieldy.

General InformationEdit

The Sextant's uses are not limited to those of the military: it can help trading ships reach Trade Theatres more quickly.

Empire: Total War Technology
Philosophy Abolition of SlaveryCitizenshipClassical EconomicsEmpiricismFree Trade DoctrineGovernment by ConsentJoint Stock CompaniesNational DebtPhysiocracyRights of ManSecular HumanismSeparation of PowersSocial ContractUtilitarianismWealth of Nations
Military AirgunsCadenced MarchingCanister ShotCarbinesCarcass ShotCarronadesCopper BottomsDiamond FormationEuropean DoctrineExplosive RocketsExplosive ShellsFire and AdvanceFire by RankFlintlock CannonsImproved CopperingImproved Grape ShotImproved GrenadesLight Infantry DoctrineLime Juice and SauerkrautLongitude WatchMachined RiflingMilitary SyllabusNaval Architecture AdvancesNaval Shore FacilitiesNew Model Bayonet DrillPercussion CapPercussion ShellsPlatoon FiringPlug BayonetQuicklime ShellsReformed Naval AdministrationReorganised ProcurementRifled CannonsRing BayonetScrew BreechSeasoningSextantSheet Lead CartridgesShortened CarbinesShrapnel ShotSocket BayonetSquare FormationTop GallantsWedge Formation
Industrial Advanced IrrigationBasic Steam PumpCoke Blast FurnaceCommon Land EnclosuresDivision of LabourFlying ShuttleFour-Field Crop RotationImproved Animal HusbandryMachine ToolsMass ProductionMeasuring ToolsPower LoomPuddling FurnacePunch-Card LoomSeed Planting DrillSelective BreedingSpinning JennySpinning MuleSteam EngineSteam-Pumped Land DrainageThreshing Machine
Warpath Campaign Mystic Call of the WildDreamwalkingRiding the WindsSpirit MedicineSpirit of the Forest
Warpath Campaign Military Ambush TacticsCannon CastingGun DealingImproved IronworkingIronworkingPowder MakingSharp ShootingWinter Clothes
Warpath Campaign Economy and Culture Improved FarmingImproved FishingMoney EconomyWritten LanguageHunting Techniques

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