The Spanish Fleet System: Its Development, Characteristics, and Challenges (Milan Urbancic)

To maintain and protect its colonial holdings in the Caribbean and the trade that sustained the colonies and the crown, Spain utilized a system of protected fleets that sailed between major colonial ports and Spain on a scheduled basis. While the fleet system was limited in its ability to protect all ships sailing between Spain and its colonies, the fleet system formed the backbone of Spain’s empire in the Caribbean from the early 16th century to the middle of the 17th century.

The Spanish fleet system developed incrementally from 1521 to 1566. It first originated from the conquest of the Aztec Empire. After conquering the Aztec Empire and its vast gold supplies in 1521, Hernan Cortes sent ships carrying gold across the Atlantic back to Spain.[1] This gold enriched conquistadors and the Spanish crown but also drew the attention and envy of Spain’s enemies. While at war with Spain in 1522, the French king, Francis I, backed corsairs to attack Spanish treasure ships on their return to Spain.[2] In response to this attack, the Spanish crown stationed a fleet in the eastern Atlantic to protect Spanish ships returning from the Caribbean and required merchant ships to carry artillery to better defend against the growing number of privateer attacks. Spanish officials expanded on this in 1526 by requiring that all ships returning to Spain from the Caribbean to sail in convoys.[3]

As French privateering expanded into the Caribbean, Spanish officials instituted additional measures that formed an organized and regulated system of convoys. In 1537, Spanish officials sent a fleet of royal warships to the Caribbean to escort convoys until their reached the wider Atlantic. Through this action, the escort of convoys expanded beyond the eastern Atlantic into the Caribbean. In 1543, Spanish officials required all ships sailing between Spain and the Caribbean to sail as part of one of two fleets organized for sailing to the Caribbean on an semiannual basis.[4] This requirement, however, had exceptions. Ships carrying enslaved Africans could continue to travel individually.[5] From 1564 through 1566, the Casa de Contratacion, based on the design of Pedro Menendez de Aviles, formally organized the fleet system. The regulations consisted of the construction of fortifications in major Caribbean ports, the stationing of naval patrols in the Caribbean and the Atlantic, and adjustments to the routes and schedules of the fleets.[6] Initially, the Casa de Contatacion sent out two fleets in a year from Seville with one departing in January and another in August. Once, a fleet reached Dominica, it split into two separate fleets with one heading for Veracruz and another for Cartagena. The new regulations established the departure of separate fleets for Veracruz and Cartagena.[7] This arrangement of the fleet remained in place into the 18th century.[8]

The Spanish fleet system from 1564 onwards consisted of two fleets, the New Spain Fleet and the Tierra Firme Fleet. The New Spain Fleet departed Seville in April for Veracruz. The Tierra Firme Fleet departed Seville in September for Cartagena.[9] On their return journeys to Spain, the fleets stopped in Havana to procure supplies and make repairs to ships before traversing into the Atlantic. The New Spain fleet departed Havana around March and April, and the Tierra Firme fleet departed Havana around September and October.[10] The size of the fleets differed over the course of the 16th and 17th centuries with fluctuations in trade and the outbreak of conflict. During the late 16th century, a fleet consisted of around 60 overall ships. Two warships typically accompanied the New Spain Fleet, and six warships accompanied the Tierra Firme Fleet.[11]

The armed warships that accompanied the fleet were galleons. The galleon developed in response to the inadequacy of existing ship designs in the early 16th century in handling the rough conditions of the Atlantic and escorting convoys. The leading figure in designing the galleon was Alvaro De Bazan. De Bazan began constructing galleons in the 1540s and in 1550, the Spanish crown signed a contract with De Bazan for the construction of galleons for use in the fleets.[12] The design of the galleon suited the purposes of the fleets, capable of holding 500 to 600 tons of cargo and were difficult for privateers to attack and board.[13]

The Spanish fleet faced several challenges in its ability to successfully transport trade cargo between Spain and the Caribbean. First, the fleets struggled against the environment of the Caribbean. Despite the design of the routes and schedules of the fleets to avoid the hurricane season, the fleets still lost ships and cargo to hurricanes over its history due to delays in departure and the unpredictable nature of the Caribbean.[14] The fleet also faced attacks and disruptions from constant conflicts between the European colonial powers. Conflicts forced the Spanish to either delay the departure of the fleets or the rely on alternative vessels to transport goods with the Caribbean.[15] The most significant attack that the Spanish fleet faced was the Battle of Matanzas Bay in 1628.[16] The fleet also struggled with the problem of private profiting from the fleets. Private ship construction contractors prioritized profits over durable ship construction, and shippers engaged in fraud, smuggling, and tax avoidance.[17]

The Spanish fleet system entered a period of decline after 1620, and its decline accelerated after 1650. The Casa de Contratacion was no longer able to organize annual fleets to Veracruz or Cartagena due to the decline in gold and silver mining in Mexico and Peru, the high costs of Spanish ship construction, and the emergence of English, French, and Dutch colonies in the Caribbean that diverted trade away from Spain.[18] However, the fleet system survived well into the 18th century.

The Spanish fleet system developed gradually over the first half of the 16th century in response to privateering. The fleet system had specific schedules and routes for its two organized fleets and relied on galleons to protect merchant ships from attacks. However, the fleet system was not perfect. It faced challenges from hurricanes, conflicts, and private interests. The development of the Spanish fleet system, its design, and its challenges demonstrate the complexities the Spanish faced in maintaining a trans-Atlantic empire in the Caribbean.