OK, lets do some math (Hey, I am a mathematician. No one said this is work!).
The Helicopta does 230 km/h. The Helicopter range is 5400 which is about half quarter around the world I think. So it takes about a 5400/230 hours to go to the extreme range of the Helicopta. In American documentary terms this is about the time it will take an average snail to go through 3 football fields! Or about a gazillion times the time needed to eat a hot dog! Or a bazilion New York seconds.
OK, I am not an American, I need the actual number in human calculable terms.
OK, so 5400/230 is, uhm, the first digit is 1, so 5400 - 2300 = >2300!, you moron, it is not 1! OK, the first digit is 2, so 5400 - 2300x2 = ,uhm 1800? So the second digit is 6 or 7. Yeah, I will not even check! That is 26-27 hours to get to the end of the range.
So that Cuban Outpost should be about 1 full day flight, then I have 2-3 hours of hovering in the tank if I am a bit early.