Using metal tubes, instead of cardboard, he was able to make much larger rockets. These monsters were 12 pounds, using bamboo poles for stability that were 10 feet long and could fly half a mile. When British troops arrived, the Indians were prepared, and the British were not. Rajah Ali launched hundreds of the new rockets at a time. The closely massed, normally unflinching British troops broke and ran when the Indian Army laid down a rocket barrage in their midst.