@marshmallowofwar thanks to both you and @AndrewAAGamer for clarifying. Thought I had a sneaky way to slow him down, but will have to give it some more thought!
This is an issue that has cropped up in numerous A&A games. The box board photos are often taken by marketing department people who simply want to make the picture look pretty and who aren’t overly concerned about depicting things accurately.
The rules for scrambling specifically state that you may only scramble if combat is occurs in the sea zone surrounding the island with the air base. This combat may be either a straight naval battle if defending naval units exist in the sea zone or just an amphibious attack launched from the sea zone if there are no existing defending naval units.
The attack is way over 90 % but you will likely loose all of you inf and polly a bunch of mec infs and arts aswell (and if you are very unlucky a tank). And you wont take normandy in turn one. If it sinks you another battleship I would say its worth it.