Yes
1: Snow hill
Snow Hill is a place above avalance airport in snowstone, its a large flat area where you can test tanks, cars or even planes more better propeller ones
2: Convoy starting points
There are specific locations in krakabloa where convoys can spawn, there is 4 of them. One is near bandit airport at spawn,
Nother one just a little south in the island,
Nother one near yeager airport,
And the last one east of the island or west of yeager
3: Large jump
In jump zone, in skypark City, there is a large ramp that you can jump on, its west of the spawn in jump zone. maybe not survivable but its worth a try to jump it
4: Nowhere
This is a good place to take pictures of planes. Its located 46 km from the west of wright islands