For the Napoleon: Total War technology, see Improved Coppering (Napoleon: Total War).

Improved Coppering (Empire: Total War)
Etw military navy improved coppering
Prerequisite Copper Bottoms
Research Points Needed
Building Needed Naval College
Leads To Top Gallants
Stream Naval, Military
  • -2% upkeep costs for all naval units
  • +2% recruitment costs for all naval units
  • +10% top speed to ships in battle
  • +5% movement range for ships on the campaign map
Improve Coppering is a Technology in Empire: Total War.


Coppering a ship prevents weeds fouling it, and this improved method prevents the ship's structural bolts from mysteriously rotting away.

Copper sheets fitted to a wooden ship keeps weeds and worms at bay, making the ship faster in the water and longer lasting in service. However, until the advent of a new alloy for making bolts to hold ship's timbers in place, coppering caused the iron bolts to be eaten away. Although nobody understands why the iron bolts fail, experiments have revealed that an alloy of copper and zinc can make bolts of sufficient strength that are immune to the mysterious problem.

Copper sheathing for a ship is not a trival expense, being about six times more expensive than replacing damaged timbers. For those navies who do it, however, the improved performance from not having weed-fouled hulls is well worth the expense. Fancy metalurgy is a small additional price to pay.

Historically, the alloy bolts made coppering a success, so much so that "copper bottomed" became a mark of approval: something so (financially) sound it could not possibly fail. The method remained in use until the development of anti-fouling paints; even iron hulls get fouled by weeds.

General InformationEdit

Unlike Copper Bottoms, this technology reduces costs associated with navies. That aside, its campaign map and combat effects are identical to Copper Bottoms (and stacks). 

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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