Gameplay" Since I had no control in any way over planes, I can't tell you about maneuvers like take off or landing: the plane bounces a lot once in air, showing strange glitches on dials, that's why I conclude it's not a very good flight model. Controls are very basic, and there's no option for rudder pedals and the like.
There are several play options: from a simple 'test-drive' of the different planes to a campaign mode, not very historical, but very complete in stats and goals. There's also a 'head-to-head' option, useful for multiplayer games. The mission editor is also present, with wide parameters to choose from, but the same lack of 'historical feeling' you can sense in the overall game.
It is hard for me to be as negative as I'm being with the (to my knowledge) only flight sim made in Spain, but the love for air combat and good gameplay prevails over patriotic feelings. Let's say J44SE is a good idea badly done, that died of sheer ambition: its 3D engine would work well for sports or racing games, but it's not suitable for an 'serious' flight sim.
With some tweaks and an 'arcade' approach, it could be a fun game. Accuracy and realism are more than just writing the historical specs of a plane under its picture."
MiGMan thanks Francisco J. Camposfor this overview and the screenshots.