If you did have the AB, you could shuttle back to West Germany on your turn, fighting at sea or on land and flying from AB to AB. Problem is that if you keep doing this as the Axis, you wont have many aircraft left later in most games…
Another real pinch here would be blocking the channel, preventing the US from moving into attack position and allowing you to invade London turn after turn. Later in the game, both UK and US can attack you with a pile of planes and ships, so after G5 this is going to be a very expensive block to enforce and surface ships alone aren’t going to cut it. Might be kind of annoying if Germany can protect a single destroyer, blocking the channel, with planes.
Neither of these moves is a great use of 15IPCS. Germany tends to run out of planes and it needs them everywhere, so it seems better spent on more bombers.