You will find information on museums with aircraft, in the Aviation History and Nostalgia forum, Coochycool. In the archived thread titled "The nine pilots that saved Castro's Cuba" there are posts referring to the Museum of the Revolution, in Central Habana (which I have visited), and the Museo Playa Giron (which I haven't). Simply enter "Cuba aircraft museum" in the "Search this forum" box. Each of these museums has a Sea Fury and a B-26. In the Central Habana museum the B-26 is a wreck, and there is also the Pratt & Whitney turbine engine of the U-2 aircraft shot down over Cuba by a Russian missile, with a display example of the type of missile used.