The first successful use of rockets by the Royal Navy was part of an attack on Boulogne
In October 1806, 24 cutters fired 2,000 rockets at the city
The actual damage was limited, but the psychological effect on both the fire and the target was massive
The unpredictable flight path of the rocket, along with the smoke and noise and the extent of the damage, made the rocket a powerful weapon
The Navy then used the same method but added conventional weapons to bombard Copenhagen in 1807
The effect of a mixed barrage was much bigger than rockets alone
Rockets were also used during the war of 1812 against the USA
The most notable action was against Fort McHenry in 1814 during the Battle of Baltimore
The fierce bombardment lasted over 24 hours, though in this case did not achieve the surrender of the fort
The experience at Fort McHenry showed the problem with the rockets
They were loud and frightening, the inaccuracy of them meant that well-protected troops were unlikely to be physically affected by anything other than direct hits
The navy used rockets for ship-to-shore bombardment
Rocket rails, along which the rocket was launched, were easy to fix on board and ships were useful for carrying large numbers of rockets
Also, rockets had a greater range than conventional guns
Ships could then anchor outside gun range and still use rockets to attack onshore targets, like forts or harbours
Drawback was that their flightpath was erratic and they did not cause the same damage as canister or cannonballs