1901 The war in the air on the Western Front, 1914 – 1918 | The History Network:
"A veteran of the First World War air fighting was asked shortly after the war: "What was fighting in the air like?"
He said: "Find a young man aged 20, pour petrol over him and set him on fire. Then shoot him in the back several times and push him off the highest building you can find, then every day for a year, you can imagine this happening to you""