Which battles might they have been lost in? I know of Pearl Harbor and such, but can't remember any "Battle of America" on the continent.
From further down on that page
"According to the AAF Statistical Digest, in less than four years (December 1941- August 1945), the US Army Air Forces lost 14,903 pilots, aircrew and assorted personnel plus 13,873 airplanes --- inside the continental United States . They were the result of 52,651 aircraft accidents (6,039 involving fatalities) in 45 months.
Think about those numbers. They average 1,170 aircraft accidents per month---- nearly 40 a day. (However, less than one accident in four resulted in total loss of the aircraft.)"