SORU: aşağıdaki parçaya göre cevaplayınız
We see from the passage that Seversky's 1942 book Victory through Air Power ----.
The first documented scheme for in-flight refuelling
came from a young Russian aviator named
Alexander de Seversky. His father owned a plane
and taught him to fly when he was in his early teens.
In 1917, when he was 23, Seversky proposed a
method for extending flight: One plane could carry
extra fuel and deliver it to another through a hose.
After the Russian Revolution, Russia's new Bolshevik
government sent him to the United States to study
aircraft design, and he stayed there when political
developments made his return to Russia dangerous.
He got a job as an aeronautical engineer for the US
War Department and was awarded the world's first
patent for air-to-air refuelling, in which large fuel
tankers would supply fuel to fighter aircraft while in
flight. Seversky went on to a distinguished career in
airplane design and achieved perhaps his greatest
fame as the author of the influential 1942 book
Victory through Air Power. He never put his refuelling
plan into action, though, and other aviators later
came up with ideas of their own.