Final answer:
There is no historical reference to the 'pull down method' of the RAF rule in the context of the Royal Air Force's actions during the Battle of Britain; instead, the RAF's wartime success was due to experienced pilots from Nazi-occupied and Commonwealth nations.
Step-by-step explanation:
The "pull down method" of the RAF rule does not directly pertain to the historical context of the Royal Air Force during the Battle of Britain. Instead, it appears the question refers to an educational strategy or a specific method within a different subject matter.
If we talk about the historical achievements of the Royal Air Force (RAF) during World War II, it is notable that the RAF became especially successful during the Battle of Britain in 1940. The RAF's success can be ascribed to various factors including the acquisition of experienced pilots from nations occupied by the Nazis, as well as pilots from the Commonwealth nations such as Canada, South Africa, India, Australia, and other British colonies.
By thwarting the German Luftwaffe, the RAF greatly contributed to Hitler postponing the planned invasion of Britain and thus played a crucial role in changing the course of the war.