Is UTTR more restrictive than R-4808N Area?

I want your opinions please on this.
Is the UTTR (Dugway Proving Grounds) airspace more restrictive than the NTTR (Groom Lake area)?

I know the airspace within UTTR extends from Surface to 58000 feet.

Anyone can confirm this on which two airspaces are more restrictive than the other?

Ocassionally on www.planefinder.net, I see planes fly over the UTTR Dugway Proving Grounds area. But never over the R-4808N Complex NTTR airspace.

Can't help you with the less restrictive question but this may help you a bit.

Now i'm pretty sure the same applies for Australian P/R/D airspace as it does in the States.

P) Prohibited - NO FLIGHTS BY ANY AIRCRAFT UNLESS MILITARY

R) Restricted - NO FLIGHTS BY UNAUTHORISED AIRCRAFT DURING TIMES OF ACTIVATION

D) Danger - FLIGHT NOT RESTRICTED BUT DUE DILIGENCE ADVISED

Might explain why your seeing aircraft transitting R-4808N, the restricted airspace may be deactive

If I'm not mistaken, r4808n has unlimited flight ceiling restriction. It ends in like the stratosphere. I remember when astronauts got in trouble years ago for taking pics of area 51. I've been within three miles of the "box" and the dreamland controllers were acting very nervous. They even gave us vectors for our orbit the rest of the day.

reply to post by darpa999

In short, yes. I don't know why but the UTTR restricted airspace carries on beyond the atmosphere and into space. People say the same about R4808 but that's a common misconception, it doesn't go as far as space but in terms of commercial airlines and military, R4808 is off limits. No question. I don't believe it's the whole UTTR though, Just Dugway proving ground.

reply to post by Thomasz



Pretty sure it's not a misconception. Ceiling is unlimited. Well whats the definition of unlimited?

Found it in my pubs...




unlimited and continous

reply to post by boomer135


Fair enough. Good research son. I always thought that R4808 didn't go that far.