There was a regular rocket corps in the Mysore Army, beginning with about 1,200 men in King Hyder Ali's time. During the
Second Anglo-Mysore War, Colonel William Baillie's ammunition stores are thought to have been detonated by a stray rocket at the
Battle of Pollilur in 1780, which contributed to British defeat in the battle. At Pollilur, rockets restricted East India Company vanguard movement, skimming along the surface, lacerating troops, and in one specific instance, shattered an Ensign's leg. With rocket bombardment and harassment, East India Company forces were caught in a
double envelopment movement by Mysore cavalry, encircled and routed. King
Hyder Ali and his son King
Tipu Sultan deployed them against the larger
British East India Company forces during the
Anglo-Mysore Wars. The British took an interest in the technology and developed it further during the 19th century. Due to the use of iron tubes for holding the propellant, higher thrust and longer range for the missile (up to range) could be achieved. Rockets also existed in Europe, but they were not iron-cased and their range was far less than their
Indian counterparts. These hammered soft iron rockets were crude, but the bursting strength of the container of black powder was much higher than the earlier paper construction, and a greater internal pressure was possible. These rockets were used with considerable effect against the British East India Company in battles at
Srirangapatam in
1792 and
1799. By the order of King Tipu Sultan, his general
Mir Zain-ul-'Abidin Shushtari compiled a military manual called
Fathul Mujahidin in which 200 rocket men were assigned to each Mysorean
cushoon (brigade). Mysore had 16 to 24 cushoons of infantry. The rocket men were trained to launch their rockets at an angle calculated from the diameter of the cylinder and the distance to the target. In addition, wheeled rocket launchers were used in war that were capable of launching five to ten rockets almost simultaneously. Rockets could be of various sizes but usually consisted of a tube of soft hammered iron about long and in diameter, closed at one end and strapped to a shaft of bamboo about long. The iron tube acted as a combustion chamber and contained well-packed black powder propellant. A rocket carrying about of powder could travel almost . In contrast, rockets in Europe could not take large chamber pressures, not being iron cased, and were consequently not capable of reaching such distances. The entire road alongside Jumma Masjid near City Market and Taramandalpet,
Bangalore was the hub of King Tipu's rocket project where he had set up a laboratory. == Use in Mysorean conflicts ==