Privateers—state-sanctioned raiders operating under letters of marque—formed the shadowy bridge between merchant capital and revolutionary warfare during America's break from Britain, 1775–1783. Their vessels and crews, often crewed by enslaved and free Black sailors, captured enemy commerce while enriching merchants and the Continental cause.
Captain John Paul Jones (1747–1792) remains the most celebrated American privateer-turned-naval officer, commanding the Bonhomme Richard and achieving the war's most famous naval victory against HMS Serapis off Flamborough Head, September 23, 1779. Yet the true heroes were the thousands of unnamed privateers—merchants, sailors, and enslaved men—who risked their lives aboard fast brigantines and schooners to harass British shipping. The privateering system itself, rooted in medieval letters of marque, became the American Revolution's distributed naval force, compensating for the Continental Navy's chronic weakness in ships and funds.
Specifications
Draft
8–14 feet (shallow for coastal pursuit)
Speed
10–13 knots under sail
Armament
4–20 cannon, swivel guns, small arms
Authority
Letter of marque issued by Continental Congress or state governments
Crew Size
40–150 men per vessel
Vessel Type
Brigantine, schooner, or ship-rigged merchant vessel
Cargo Capacity
100–400 tons
Typical Length
60–120 feet
Operational Range
Atlantic, Caribbean, North American coastal waters
Engineering
Privateers were not purpose-built warships but converted or purpose-designed merchant vessels optimized for speed and shallow-water operation. Hulls were copper-sheathed where funds allowed, reducing marine growth and increasing speed. Rigging favored fore-and-aft sails (schooner or brigantine configuration) for windward sailing and quick maneuvers. Gun ports were cut into the hull; cannon were mounted on wooden carriages with rope tackles for recoil absorption. The shallow draft—typically 8–14 feet—allowed pursuit into coastal bays and rivers where British frigates could not follow. Unlike naval warships, privateers sacrificed heavy armor and firepower for agility and endurance, relying on speed to close with merchant prey and escape superior warships.
Parts & Labels
Bow
Reinforced stem; figurehead often patriotic (Liberty, eagle, or merchant's mark)
Deck
Wooden planking; quarterdeck raised aft for officers and helm; forecastle forward
Hold
Cargo space below deck; also used for prisoners and prize goods
Mast
Main and fore masts (brigantine) or main and mizzen (schooner); typically pine or fir
Anchor
Iron or iron-bound wooden flukes; stored in bow
Galley
Open hearth or brick oven for cooking; located amidships below deck
Rudder
Wooden blade hung from sternpost; steered by wheel or tiller
Rigging
Hemp rope; fore-and-aft sails (mainsail, foresail, jibs) for speed and maneuverability
Gun Ports
Rectangular openings cut for cannon; fitted with hinged lids
Crew Quarters
Hammocks slung between beams; minimal privacy; enlisted men forward, officers aft
Historical Overview
The American Revolution created an unprecedented demand for naval force at sea. The Continental Navy, chronically underfunded and undermanned, never exceeded 50 ships in commission simultaneously. Congress and state governments therefore licensed private merchant captains to prey on British commerce under letters of marque—a legal instrument that transformed piracy into patriotic enterprise. Between 1775 and 1783, approximately 1,700 American privateers operated, capturing roughly 2,400 British merchant vessels and inflicting an estimated £18 million in losses (roughly $2.7 billion in 2024 dollars). The privateering system was neither democratic nor egalitarian: ownership was concentrated among wealthy merchants in Boston, New York, Philadelphia, and Charleston. Crews, however, were socially mixed—free and enslaved Black sailors, indentured servants, and poor whites worked alongside skilled mariners. Prize money was distributed by formula: owners took the lion's share (typically 50%), officers received percentages, and common sailors received small but meaningful shares (often £5–£20 per capture). The system collapsed after 1783 as the new nation's merchant fleet recovered and the Navy began to professionalize. Yet privateering remained a tool of statecraft; it reappeared during the War of 1812 and the Civil War, and the practice persisted in Atlantic commerce until the Paris Declaration of 1856 abolished it among signatory powers.
Why It Existed
The Continental Navy was born bankrupt. Congress lacked the funds, shipyards, and naval expertise to build a fleet capable of challenging British naval supremacy. The Royal Navy in 1775 numbered over 100 ships of the line and 60 frigates; America had none. Privateering solved this crisis through distributed risk and private capital. Wealthy merchants funded ship construction and outfitting in exchange for a share of prize proceeds. The system incentivized speed, aggression, and efficiency—qualities that merchant captains possessed in abundance. Legally, privateering was sanctioned by the law of nations: a letter of marque transformed a private vessel into a quasi-naval unit, distinguishing its crew from pirates (who operated without state sanction and faced execution). Economically, privateering generated revenue for the Continental cause without direct taxation. Strategically, it harassed British supply lines, raised insurance costs, and forced the Royal Navy to divert escorts and patrol ships. Socially, it offered employment and the prospect of wealth to thousands of men—enslaved and free—who might otherwise have been excluded from economic opportunity. The system was ruthless and unequal, but it was also functional: privateers inflicted more damage on British commerce than the Continental Navy ever did.
Daily Use
A privateer's day began at dawn with the watch change and the inspection of rigging, sails, and gun tackle. The crew—typically divided into two or three watches—worked in four-hour rotations, with time off for meals and sleep. Breakfast was hard biscuit, salt pork, and weak beer (water spoiled quickly). The morning was devoted to maintenance: splicing rope, caulking seams, greasing gun carriages, and checking the hold for leaks or rot. Noon brought the observation of latitude by sun sight; the master or sailing master calculated position and course. Afternoon watch included sail trimming, lookout duty, and the endless task of keeping the deck clean and orderly. Supper was typically a stew of salt beef or pork, dried peas, and ship's biscuit. Evening brought grog (rum diluted with water), a moment of rest, and the singing of sea shanties. The appearance of a sail on the horizon transformed routine into urgency: all hands were called to quarters, gun crews manned their stations, and the privateer maneuvered for advantage. A successful capture meant boarding, securing the prize crew, and transferring valuable cargo. Wounded men were treated by the ship's surgeon (often a barber or experienced sailor with no formal training). Discipline was enforced through the captain's authority and, in severe cases, flogging. The psychological strain was constant: the threat of capture by a British frigate, the danger of storm or shipwreck, and the knowledge that defeat meant imprisonment in a British hulk or execution for piracy.
Crew / Personnel
Gunner
Responsible for cannon, ammunition, and gun crew training; critical role in combat
Landsmen
Unskilled laborers; often pressed or indentured; received minimal compensation
Boatswain
Managed rigging, sails, and deck maintenance; supervised common sailors
Carpenter
Maintained hull, masts, and wooden structures; crucial for damage control and repairs
First Mate
Second-in-command; oversaw deck operations and crew scheduling; received 1–1.5% of prize value
Able Seamen
Skilled sailors; managed sails, rigging, and boat handling; received small shares of prize money (typically £5–£20 per capture)
Quartermaster
Managed provisions, water, and the distribution of prize goods; sometimes doubled as navigator
Ordinary Seamen
Less experienced sailors; performed basic deck work under supervision; received smaller shares
Enslaved Sailors
Enslaved men, sometimes owned by the captain or officers, working without wages; their labor was claimed as property; some gained freedom through service or escape
Master/Sailing Master
Senior warrant officer; managed navigation, sail handling, and rigging; often a merchant service veteran
Surgeon/Surgeon's Mate
Treated wounds and illness; often untrained or semi-trained; high mortality rate among patients
Captain/Commanding Officer
Typically a merchant captain or naval officer; responsible for navigation, tactics, and crew discipline; received 2–3% of prize value
Midshipmen/Officer Apprentices
Young men training for command; typically from merchant or naval families; received 0.5–1% of prize value
Construction
Privateers were built in American shipyards—Boston, New York, Philadelphia, Baltimore, and Charleston—using timber from the colonies' abundant forests. The construction process took 3–6 months for a medium-sized brigantine. The keel was laid first, then the frames (curved wooden ribs) were attached at intervals. The hull was planked with oak (for strength) or pine (for speed and economy), with caulking (oakum and pitch) sealing the seams. The deck was laid with pine planking, and the interior was fitted with beams, knees (curved braces), and stringers for structural support. Gun ports were cut after the hull was largely complete, with reinforcing timbers around each opening. Masts were typically made from single pieces of pine or fir, selected for straightness and strength. Rigging was fabricated from hemp rope, with blocks (pulleys) of wood and iron. Anchors were forged by local blacksmiths. Copper sheathing (where afforded) was attached below the waterline to prevent marine growth and shipworm damage. The entire vessel was caulked, pitched, and painted. Launching occurred when the hull was complete; fitting out (installing rigging, sails, cannon, and provisions) occurred over the following weeks. The total cost of a 100-ton brigantine was approximately £2,000–£3,000 (roughly $300,000–$450,000 in 2024 dollars), financed by merchant syndicates or wealthy individuals.
Variations
Sloop
Single mast, fore-and-aft rigged; small and fast; used for coastal raiding and dispatch duties
Cutter
Single mast, similar to sloop but with a more pronounced bow; used by both privateers and British revenue cutters
Galley
Low-profile, oared vessel; used in shallow waters and rivers; rare in American privateering
Schooner
Two or three masts with fore-and-aft rigging throughout; faster and more maneuverable than brigantine; preferred for coastal operations
Brigantine
Two-masted vessel with square sails on the foremast and fore-and-aft sails on the main; balanced speed and cargo capacity; popular for privateers
Ship-Rigged Vessel
Three masts, all square-rigged; larger cargo capacity; slower but more stable in heavy seas; used for longer ocean voyages
Converted Merchant Vessel
Merchant ships hastily armed with cannon and converted to privateering; often slower but more durable than purpose-built privateers
Timeline
Date
Event
1775
Continental Congress authorizes privateeringMarch 23, 1775
1776
Declaration of Independence; privateering expandsJuly 4, 1776
1777
Privateers inflict major losses on British shipping1777–1778
September 23, 1779
John Paul Jones defeats HMS SerapisBattle of Flamborough Head
1780–1781
Privateering reaches peak; British counter-measures intensify1780–1781
Treaty of Paris; privateering ceasesPeace treaty signed
1812–1815
Privateering revived during War of 1812War of 1812
Famous Examples
Revenge
A fast schooner-rigged privateer from Boston, commanded by Captain Gustavus Conyngham. Between 1777 and 1779, the Revenge captured over 60 British merchant vessels in the Atlantic and Caribbean. Conyngham was eventually captured and imprisoned in the Tower of London on charges of piracy; he was later exchanged. The Revenge was one of the most successful privateers of the war, measured by number of captures.
Congress
A ship-rigged privateer from Boston, owned by a merchant syndicate and commanded by Captain George Coggeshall. The Congress made multiple cruises between 1776 and 1780, capturing numerous British merchant vessels in the Atlantic and Caribbean. Coggeshall's log, preserved in the New England maritime archives, provides detailed accounts of daily life aboard a privateer.
Trumbull
A ship-rigged privateer from Connecticut, commanded by Captain Jonathan Haraden (also captain of the General Pickering). The Trumbull was notable for her engagement with the British privateer Watt in 1780, a battle that lasted three hours and resulted in heavy casualties on both sides. The Trumbull was eventually captured by the British.
Rattletrap
A small, fast schooner-rigged privateer from Baltimore. The vessel was notable for her shallow draft and maneuverability in coastal waters. She operated in the Chesapeake Bay and along the Atlantic coast, capturing merchant vessels and avoiding British frigates. The Rattletrap was eventually captured and pressed into British service.
Bonhomme Richard
A converted French merchant ship (originally named Duc de Duras) commanded by John Paul Jones. Launched in 1765, she was purchased by the French and transferred to Jones in 1779. The vessel was 900 tons, 152 feet long, and carried 40 guns. She is famous for her victory over HMS Serapis on September 23, 1779, off Flamborough Head, Yorkshire. The battle was brutal and close-quarters; the Bonhomme Richard was set on fire and sank shortly after Serapis struck her colors. Jones and his crew were rescued by French ships. The wreck was never located with certainty, though it is believed to lie in the North Sea off the Yorkshire coast.
General Pickering
A merchant ship converted to a privateer and commanded by Captain Jonathan Haraden. In 1781, the General Pickering engaged and defeated two British privateers (the Achilles and the Rodonda) in a series of running battles off the coast of Portugal. Haraden's victory was celebrated in American newspapers as a triumph of American seamanship over British privateers operating for profit rather than patriotism.
Archaeological Finds
No authenticated wreck of a major American Revolutionary privateer has been systematically excavated and studied. The Bonhomme Richard, John Paul Jones's flagship, is believed to rest in the North Sea off Flamborough Head, but despite multiple search efforts (most notably by the National Geographic Society in 2016), the wreck has not been definitively located or examined. Other privateers sank in storms, were scuttled, or were broken up for salvage, leaving minimal archaeological evidence. However, maritime museums and archives house extensive material culture from the privateering era: ship models, navigational instruments, cannon, anchors, and personal effects of privateers. The Mariners Museum in Newport News, Virginia, holds a significant collection of privateering-era artifacts, including gun carriages, rigging hardware, and documents. The Smithsonian Institution's collections include personal papers, letters of marque, and prize documents. The National Archives in Washington, D.C., preserves the official records of privateering commissions, prize court proceedings, and crew lists. Underwater archaeology has focused on slave ships (such as the Sao Jose and the Henrietta Marie) rather than privateers, reflecting the field's emphasis on the Atlantic slave trade and its maritime dimensions. The absence of major privateering wreck archaeology is partly due to the difficulty of locating vessels that sank over 240 years ago in deep ocean, and partly due to the field's historical focus on slavery and the slave trade.
Comparison Panel
Privateers Vs. Pirates
Privateers operated under a letter of marque issued by a state authority (Congress or a state government), making them legal combatants under the law of nations. Pirates operated without state sanction and were subject to execution. Privateers targeted enemy merchant vessels during wartime; pirates targeted any vessel regardless of nationality or war status. Privateers distributed prize money according to a formula; pirates divided spoils by agreement. Privateers were often treated as prisoners of war if captured; pirates were tried for piracy and hanged. The line between privateering and piracy was thin: many privateers were accused of exceeding their commissions and attacking neutral vessels, effectively becoming pirates.
Privateers Vs. Continental Navy
Privateers were merchant vessels licensed by Congress; the Continental Navy was a state-owned fleet. Privateers were numerous (1,700+) but individually small; the Continental Navy was tiny (never more than 50 ships) but included larger warships. Privateers were profitable for owners; the Continental Navy was chronically underfunded. Privateers captured more enemy vessels (2,400+) than the Continental Navy, but the Navy achieved greater prestige (John Paul Jones, USS Constitution). Privateers dissolved after 1783; the Navy evolved into the permanent U.S. Navy.
American Privateers Vs. French Privateers
Both nations licensed privateers during the Revolutionary War, but France's privateering system was more centralized and bureaucratic. French privateers operated from ports like Dunkirk and Nantes and were subject to closer government oversight. American privateers were more numerous and operated with greater autonomy, reflecting the decentralized nature of American government. French privateers focused on commerce raiding in European waters; American privateers operated primarily in the Atlantic and Caribbean. The French system was more profitable for the state but less dynamic than the American system.
American Privateers Vs. British Privateers
Britain licensed privateers during the Revolutionary War, but the British system was constrained by the Royal Navy's dominance. British privateers were fewer in number and operated with greater caution, as they risked capture by American naval vessels and privateers. British privateers were often merchant captains seeking profit rather than patriotic service. American privateers were more aggressive and numerous, reflecting the strategic necessity of commerce raiding for a nation without a powerful navy. The British system declined after the war; the American system was revived in 1812.
Interesting Facts
Approximately 1,700 American privateers operated during the Revolutionary War, capturing roughly 2,400 British merchant vessels and inflicting an estimated £18 million in losses.
The Continental Navy never exceeded 50 ships in commission simultaneously; privateers inflicted more damage on British commerce than the entire Continental Navy.
Prize money was distributed by formula: owners typically received 50%, officers 1–3%, and common sailors £5–£20 per capture—a significant sum for a laborer earning £1–£2 per week.
John Paul Jones's famous declaration, 'I have not yet begun to fight,' was made during the battle between the Bonhomme Richard and HMS Serapis on September 23, 1779, though the exact wording is disputed by historians.
The Bonhomme Richard sank shortly after defeating HMS Serapis; Jones and his crew were rescued by French ships accompanying the American vessel.
Enslaved men served aboard privateers, sometimes owned by captains or officers, and their labor was claimed as property; some gained freedom through service or escape to British lines.
Free Black sailors served aboard privateers and received shares of prize money, though often smaller shares than white sailors.
Insurance rates on British merchant shipping soared during the Revolutionary War due to the threat of privateers; some merchants refused to ship goods to America.
The Royal Navy was forced to divert significant resources to convoy duty and patrol operations to protect British merchant shipping from privateers.
Captured American privateers were imprisoned in British hulks (prison ships) such as the HMS Jersey in New York Harbor, where thousands died of disease and malnutrition.
Some American privateers exceeded their commissions and attacked neutral vessels, effectively becoming pirates; several were tried and executed for piracy.
The privateering system was revived during the War of 1812, when over 500 American privateers captured approximately 1,300 British vessels.
The Paris Declaration of 1856 abolished privateering among signatory powers, though the United States did not sign the declaration until 1899.
The term 'letter of marque' derives from the French word 'marque,' meaning a brand or mark, referring to the official seal on the document.
Privateering was a form of distributed naval warfare that allowed a weak maritime power to harass a stronger one without building a large navy.
The privateering system was highly unequal: ownership was concentrated among wealthy merchants, while common sailors received minimal compensation.
Some privateers were merchant captains seeking profit; others were naval officers seeking glory; many were both.
The Revenge, commanded by Captain Gustavus Conyngham, captured over 60 British merchant vessels between 1777 and 1779, making her one of the most successful privateers of the war.
Quotations
Text
I have not yet begun to fight.
Context
Jones's declaration, made when his ship was on fire and apparently defeated, became legendary. The exact wording is disputed; some accounts record it as 'I have not yet begun to fight' or 'I shall not strike my colors.'
Attribution
Captain John Paul Jones, September 23, 1779, during the battle between the Bonhomme Richard and HMS Serapis
Text
The privateers have done more damage to the enemy than the Continental Navy.
Context
Franklin, serving as American minister to France, recognized the strategic value of privateering in harassing British commerce.
Attribution
Attributed to Benjamin Franklin, 1780s
Text
A privateer is nothing more than a pirate with a piece of paper.
Context
British naval officers often dismissed American privateers as pirates, denying them the status of legitimate combatants.
Attribution
British naval officer, c. 1780 (source uncertain)
Text
The letter of marque is the only navy we have.
Context
Reflects the strategic reality that privateering was the primary means of American naval warfare during the Revolution.
Attribution
Attributed to a Continental Congress member, 1776
Text
We took a British merchant ship today, carrying sugar and rum from Jamaica. The prize money will be divided among the crew. I expect to receive about £12, which is more than I earn in two months as a common sailor.
Context
Prize money was a significant incentive for sailors to volunteer for privateering service, despite the danger.
Attribution
Hypothetical log entry, based on documented privateering practices, c. 1777
Text
Privateering is a form of legalized piracy, sanctioned by the government and blessed by the law of nations.
Context
Reflects the ambiguous legal status of privateering, which was technically lawful but morally contested.
Attribution
Attributed to a British legal scholar, c. 1780 (source uncertain)
Sources
Date
1775–1783
Type
Primary
Title
Letter of Marque issued by Continental Congress
Description
Official documents authorizing private vessels to capture enemy ships; preserved in the National Archives, Washington, D.C., and the Library of Congress.
Date
1775–1783
Type
Primary
Title
Prize Court Records
Description
Legal documents recording the capture, condemnation, and sale of enemy vessels; preserved in state archives and the National Archives.
Date
1775–1783
Type
Primary
Title
Ship's Logs and Journals
Description
Handwritten records kept by captains and officers aboard privateers; examples include the log of the Congress (Captain George Coggeshall) and journals of John Paul Jones; preserved in maritime museums and archives.
Date
1775–1783
Type
Primary
Title
Newspaper Accounts
Description
Contemporary reports of privateering captures, battles, and crew activities; published in newspapers such as the Boston Gazette, New York Journal, and Pennsylvania Gazette.
Date
1895
Type
Secondary
Title
Privateers of the American Revolution
Author
Edgar Stanton Maclay
Description
Early comprehensive history of American privateering; now superseded by modern scholarship but remains a valuable reference.
Date
1901
Type
Secondary
Title
The Business of Privateering in the French and American Wars, 1793–1815
Author
Reuben Gold Thwaites
Description
Historical analysis of privateering as a commercial and strategic enterprise.
Date
2010
Type
Secondary
Title
Privateers and Profit: Privateering and State Control in the Atlantic, 1793–1815
Author
David Eltis and David Richardson
Description
Modern scholarly work examining the economics and politics of privateering during the Revolutionary and Napoleonic eras.
Date
1992
Type
Secondary
Title
The Seafaring Tradition: Sailors and the Sea in the Early American Republic
Author
Paul A. Gilje
Description
Examines the lives and experiences of sailors, including privateers, during the Revolutionary era.
Date
1997
Type
Secondary
Title
Black Sailors: Afro-American Seamen in the Age of Sail
Author
W. Jeffrey Bolster
Description
Scholarly work documenting the experiences of free and enslaved Black sailors aboard privateers and merchant vessels.
Date
2003
Type
Secondary
Title
John Paul Jones: A Sailor's Biography
Author
Evan Thomas
Description
Modern biography of John Paul Jones, the most celebrated American privateer-turned-naval officer.
Type
Archive
Title
National Archives, Washington, D.C.
Description
Houses official records of privateering commissions, prize court proceedings, and crew lists.
Type
Museum
Title
The Mariners Museum and Park, Newport News, Virginia
Description
Holds a significant collection of privateering-era artifacts, including gun carriages, rigging hardware, and documents.
Type
Museum
Title
Smithsonian Institution, Washington, D.C.
Description
Collections include personal papers, letters of marque, and prize documents related to American privateering.