This is actually a difficult question to fairly. Many countries were involved in the pioneering of fighter based aviation, and pushed the limits design and more. It really is a matter of personal opinion concering which was the most prominent. This is based less on the pilots than on the advances in aviation and aviation tactics.
France. This is based on the fact that many French aircraft were adopted by other countries. The aviation branch of the US Army obtained most of their airplanes from France. France developed some of the greatest aircraft including the SPAD.
England had designers like Tommy Sopwith who designed aircraft that were able to compete head on with the Fokker designs. His work included the Camel, Snipe, Pup, Triplane and others. The SE5a, by the Royal Aircraft Factory, helped halt the horrible Bloody April of 1917.
Italy became a prominent aviation leader soon after WW1 and broke many aviation records.
United States ranked at the bottom of the list. US had very few aircraft in 1916. They had to buy aircraft from France or England. The only aircraft that was made in the USAand flown in combat was the DH-4 with the Liberty engine (some Curtis seaplanes also flew coastal patrols).
Germany should also be a consideration because of it's pioneering in aviation warfare tactics. Read up on Boelcke's Dicta which laid out the rules of combat for air warfare. This dicta is still in use to this day. Oswald Boelcke was considered one of the great pilots because of his grasp of tactics. Another German pilot who also aided in the development of fighter tactics was Manfred Von Richthoven. He advanced Boelcke's ideas and build up one of the most feared fighter units of the war.
German aircraft helped with their supremacy in the air during a lot of the war. However the designer of many of the German aircraft was a Dutchman named Anthony Fokker. His aircraft design led to what was called the Fokker Scourge. It was also Fokker who developed the synchronization gear that allowed machine guns to shoot between the propeller blades, thus allowing the first true fighter aircraft to take off in effectiveness.
France helped the Allies have the advantage in war planes during WW 1. France was a leader in aircraft due in part for its focus on building many more planes than did Germany. France was a leader in aircraft technology and as a whole the Allies built over 120,000 fighter and bomber planes than did Germany which built only 48,000.
United State has the largest number of military aircraft. Roughly more than 7500. It has also the most advanced aircraft.
The treaty of Versailles
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The Albatross C15 (also referred to as the C.XV) was used by Germany. It was a 1918 military reconnaissance aircraft developed during World War I. Although it was never used during the war, it was used in peacetime as a transport aircraft under the designation of L47.
Gordon Swanborough has written: 'Military transports and training aircraft of the world' -- subject(s): Military Airplanes, Transport planes 'United States military aircraft since 1909' -- subject(s): History, Military Aeronautics, Military Airplanes 'Combat aircraft of the world' -- subject(s): Military Airplanes 'United States military aircraft since 1908' -- subject(s): Military Aeronautics, Military Airplanes 'North American' -- subject(s): North American airplanes (Military aircraft), Rockwell airplanes (Civil aircraft) 'World's airliner registrations' -- subject(s): Airplanes, Registers 'Military aircraft of the world' -- subject(s): Military Airplanes 'British Aircraft at War, 1939-45' 'Civil aircraft of the world' -- subject(s): Private planes, Transport planes
Someone who drops from an aircraft by parachute is known as a skydiver or paratrooper. They were used extensively by the military during World War II.
Every military or civilian aircraft in the world has civil or military recognition or registration numbers. All civil aircraft numbers are led by a country code, for instance 'C ' for Canada, 'G' for UK, 'N' for USA and so on.
The Soviet Union :)
Many military aircraft were produced in 1942 during World War II including drones, gliders, liasons, pursuits/fighters, observation, reconnaissance and many more. For a list of specific planes produced, see the related link for US military aircraft from 1942-1948.
The US built OVER 100,000 aircraft during the war. More than the AXIS powers combined.
I believe the United States uses the most aircraft for both civilian and mostly military use.
People did not travel from London to Berlin in WW2 unless they were in a military aircraft and dropping bombs.
Hitler had a highly modern military. It had several relatively recent military inovations, including advanced tanks, aircraft, and then revolutionary rockets.
Airborne radar, jet aircraft and rocket aircraft.
SR-71 Blackbird. Mach 3.2