A survey ship first
HMS Beagle is remembered mainly because Charles Darwin sailed in her, but her purpose was naval and practical. She was a Royal Navy ship of the Cherokee class, usually described as a 10-gun brig-sloop, launched at Woolwich in 1820. After a brief period in the fleet she was refitted for survey work in 1825, and was given a barque rig, with an extra mast, which made her steadier for the slow work of measuring coasts. The Beagle survey voyages were part of a long programme: surveying was a core activity of the Royal Navy, since accurate charts of foreign coasts and harbours supported trade and, if needed, naval operations. The Royal Navy’s dockyards fitted out such ships, as the story of the royal dockyards of Britain shows.
The first voyage, 1826 to 1830
The Beagle’s first survey voyage began in 1826, working alongside another ship, HMS Adventure, on the coasts of southern South America, especially Patagonia and Tierra del Fuego. It was a hard assignment: stormy seas, poor weather and uncharted shorelines. The Beagle’s first commander on this voyage, Pringle Stokes, died in 1828 in distress after a period of great strain. Robert FitzRoy, then a young naval officer, was appointed to command her and continued the work. The voyage returned to England in 1830.
The second voyage, 1831 to 1836
FitzRoy was sent out again on a second voyage to continue the survey of the same region and to carry out a chain of chronometric measurements around the world, aiming to fix longitudes more accurately. The Beagle sailed from Plymouth Sound (Devonport) on 27 December 1831 and returned to Falmouth on 2 October 1836.
Aboard were many chronometers, which had become important instruments by this period. The marine chronometer allowed a navigator to compare local time with a reference time, a way of working out longitude. Using several chronometers allowed cross-checking, and the Beagle’s measurements were meant to link positions around the globe.
During the voyage the ship surveyed coasts in South America, visited the Galapagos Islands, crossed the Pacific, and called at Tahiti, New Zealand, Australia, the Cocos (Keeling) Islands and Mauritius, before returning via the South Atlantic. FitzRoy’s survey of the Patagonian and Tierra del Fuego coasts was respected, and Admiralty charts based on this work remained in use for a long time afterwards.
Darwin on board
Charles Darwin joined as a naturalist and as a gentleman companion for the captain, which was a common arrangement for long voyages. He was in his early twenties. He collected geological, fossil and biological specimens, and his observations during the voyage were later worked into his Journal of Researches (published 1839) and into his later scientific work, including On the Origin of Species in 1859.
It is worth being careful here. Darwin did not develop the full theory of evolution on the Beagle, and the idea that the Galapagos finches alone prompted it is a simplification. The voyage gave him material and experience, and his ideas developed over the following years. For the ship’s own history, the key point is that the Darwin voyage was a survey cruise first, and that scientific collecting was an addition.
The third voyage, 1837 to 1843
After her return, the Beagle was refitted again and sent on a third survey voyage, this time to Australia. Under John Clements Wickham and later John Lort Stokes, she surveyed parts of the Australian coast, including the north-west and the Bass Strait region, between 1837 and 1843. This voyage is much less well known than the second, though in practical terms it added more charting. It also fits a broader pattern of British survey work in the Pacific, a tradition associated with the Cook Pacific voyages of the previous century.
Later life of the ship
After her survey service the Beagle was used for other purposes. In the 1840s she became a watch vessel for the coastguard, stationed in the Essex marshes, and was sold in 1870. Her remains are believed to lie in the muddy creek near Paglesham, though identification of the remains has been discussed rather than conclusively settled. There is no surviving hull on display, which is a reminder of how much of maritime history depends on documents rather than preserved ships. That absence is also part of why maritime archaeology matters to the field.
Why the Beagle matters
The Beagle survey voyages had their main influence on maritime history in surveying and in the use of chronometers on long voyages. FitzRoy later became known for his work in meteorology and the early forecasting service, based on the same practical interest in weather at sea. The Beagle voyages sit between the age of Cook and the large scientific cruises of the later nineteenth century, such as the Challenger expedition, which carried ocean science much further. They also show the Royal Navy using survey as a tool of empire and commerce, not only exploration for its own sake.