The first aerial combats took place over France in World War I. In the earliest combats, known as dogfights, pilots often were armed only with pistols. If the planes carried bombs, they were aimed and dropped by hand. The earliest planes were built as scouts, not fighting machines.
The first military helicopters to fly with the American Air Commando in 1944 during its operations in Burma were experimental machines. But the following year the Sikorsky R-4s came into service with the American army for reconnaissance. They had been developed by Ivan Sikorsky’s company.
A German torpedo hit the RMS Lusitania on May 7, 1915. Shortly after, a substantial second explosion shook the ship. Within 20 minutes, the vessel known as the "Greyhound of the Seas" had sunk to the ocean floor, resulting in the deaths of almost 1200 individuals. A new two-step investigation...