Can anyone just go in there? Those pics are sick as hell. How did you do that? I need a good lesson in Photoshop.... Thats AWESOME!!!
Technically no, your not really allowed in by the hangars even though you can drive in, the other hangars with the danger keep out and the grassy area is def off limits, they put a few concrete barriers but you can def still fit a car through. I was there for like 3 -4 hours and no one said anything, a few parks police drove by.
They are very lenient with the photographers especially if you got the whole tripod thing going, a lot and i mean a lot of people take pictures there, I did a photoshoot with a model on my motorcycle and I had to wait my turn to use the hangar LoL !
Its special HDR software that combines pictures of different exposure levels and then you do some tone mapping.