It sounds like a plausible plan until you look at the losses Ju52s suffered just from ground fire and "operations" in Norway Netherlands and Crete. The other thing is that there isn't really a "night time" in Dover in June. Civil twilight, that is where it is light enough to do most things lasts from 4AM to midnight, it is only dark enough to give cover of darkness for about 2 hours. Floating transport planes towards the centre of UKs air and coastal defences is a great idea for someone else to try.In "With wings like Eagles" Michael Korda wrote that Milch had proposed the day after Dunkerque fell with the British Army in disarray, to immediately use every Ju-52 to fly as many troops over as possible nightly, secure an airfield and a port and follow up with more sea borne troops. Germany may not have been able to conquer Britain, but peace negotiations may have gone differently with several thousand German troops in Kent.