Thanks to all - to Nick Beale, Graham Boak, Kurfurst, Peter Cornwell.
As I mentioned Christer Bergstrom article should me refresh my BoB looks.
http://www.1jma.dk/topic.asp?TOPIC_ID=3371
I' m agreed in terms Cat.2 corresponding LW 60% and less damage category. But seems strange that every british author claim his own FC losses figure, never repeated. For example 755 H/S - Franks, 915 - Richards, 932 Wood/Dempster, 1140 Cat.3 fighters Derek Woods...
In fact I have many other figures.
Even BoB period - very srange matter.
Sure air campaign agaist GB generally lasted since Dunkirk evacuation till end of May 1941 - one whole year. But in invasion context - much shorter since August 11 till September 17. This is only period in regard Sea Lion.
Sept.17 P/M Churchill clearly advised about German don't start Invasion in 1940. This fact was confirmed by photorecon Sept.23.
Following night bombing not aim to win Britain but seems impressed so that BC returned to German in same method within 4 years. And soon after official date of BoB won Dowding and Park retired not as winner.
P.S. Generally I can agreed to Kurfurst in regard air supremacy not established in South Britain in mid of September and Hitler don't start Invasion in other reason - he don't really want this. Comparision between FC against Jagdwaffe quite correct? but for clear picture should include other RAF branch as BC, CC and FAA.