Irving quote   Re Authoritive statements of Irving in Battle of Britain article  You have rewrote the section as following  Historian David Irving states that part of this reason was due to the totally inadequate production levels with  singleengined and  twinengined fighter aircraft produced on avarage per month during early Irving  p  and that as a result the number of German front line aircraft were declining and this problem would not be improved until the spring of  with a huge effort to expand production reaching  by MarchApril Irving  p   In fact however Irving does not make these statements If you read the book  which has been linked in free pdf format here is what he writes on page   On Milchs desk there were already the most alarming reports not only of the gathering RAF bomber strength but of bomber production in America too To him air defence rested primarily on the fighter squadrons but at present the Air Staff was calling for only  fighter aircraft to be produced a month Fighter production had averaged  single and  twinengined aircraft a month during  Milch and his new planning chief von Gablenz wanted far greater numbers and with more bombers as well  not only the  He s but  Ju s of the latest type as well  etc  Ie Irving does not state totally inadequate production levels and even less mentions bombers this is the addition of one editor to the Irving book which has been described as Milchs diary which is it not either