Following great success from the monitoring programmes on board HMS Victory and HMS M.33, Tinytag Plus 2 data loggers have now been installed on HMS Warrior and HMS Trincomalee.
Monitoring temperature and relative humidity is essential to
aiding the conservation of historic ships and sensitive items on
The HMS Victory Conservation Project involves major work to HMS
Victory, Vice-Admiral Lord Nelson's flagship, to ensure its
preservation for the next fifty years. The conservation project has
recently expanded to include a weather station, situated on the
dockside outside the ship, which allows outdoor conditions to be
tracked alongside conditions on board.
By cross-referencing the data recorded by the loggers with that
recorded by the weather station, Head of Conservation Diana Davis
and her team have been able to determine that changes in the
weather are the main factor behind long-term environmental patterns
on board. Analysis of the rate of change in conditions internally
and externally has allowed the team to calculate the lag times
between the two, showing how quickly or slowly a change in the
weather affects different areas of the ship. This vital information
has helped the team to identify which areas are the worst affected
by outdoor conditions, and enables them to take informed action to
protect the Victory and its contents.
Tinytag data loggers have also been used on board HMS M.33, the
sole remaining British veteran of the Dardanelles Campaign of
1915-1916 and the Russian Civil War, and one of just three British
warships from World War I still in existence. Its metal hull means
that interior temperatures can fluctuate hugely throughout the year
- from a high of 51°C in the summer to a low of -5°C in the winter.
Continuous, year-round monitoring using the Tinytag Plus
2 data loggers allows quick and predictive responses to
damaging conditions resulting from the extreme temperatures such as
overheating, condensation and damp.
The conservation team were pleased with the performance of the
2 data loggers on board HMS Victory and HMS M.33 and have now
installed devices on two more ships: HMS Warrior and HMS
Trincomalee. "The Tinytag temp/RH data loggers we installed on HMS
Victory and HMS M.33 have been very successful in letting us track
the environment within these ships" says Diana Davis. "Since the
Tinytags have been successful on these two ships, we have also now
installed the same model of loggers on HMS Warrior (1860), aﬂoat
here in Portsmouth, and on HMS Trincomalee, at The National Museum
of the Royal Navy Hartlepool, the oldest British sailing ship still
The same type of temperature and RH data is being gathered on
board these vessels to track internal conditions. The data is being
used to predict when problems might arise and to inform the better
preservation of the ships and their contents.