[Glider]

The Statement Germany did not lose the Battle of Britain is clearly wrong, they did lose the Battle of Britain in the air. They lost the ability and will to operate over the South of England during daylight so by default they lost, as that was one of their key aims and without it an invasion was impossible. If you cannot operate over the SOuth of England in daylight then you stand no chance of achieving control of the air.

There is a second question which is being mixed up and that is, Could Germany have invaded even if the BOB been won and the reply is no, they may have been able to land but almost certainly the RN and lack of specialist resources available would have doomed the invasion to failure.

There is also a theory that Germany didn't really try, yes they did, in the time available and the designs and resources at hand no one could have tried harder. Comment is made about the number of troops assigned. That wasn't the problem, you could have an army twenty times larger but if your boats can only carry X amount then X amount is all you really have to plan and invade with.