Ultimate Allied Fighters Of Second World War:During the five years of the Second World War, the power of engines and speed of aircraft increased as much as it did during twenty years of peacetime. Conventional aircraft and engines reached the limits marked in the original design and surpassed them, very fast. The basis for this huge achievement was exotic fuels, short lived artificially overpowered engines, propellers with four, five, and even six blades, and thinner wings with special sections