Definition of Class 1 and 2 airpace

[PARAMOUNT]

Does anyone know where I can get a good definition of what Class 1 and 2 airspace is???

Thanks

 

[NJAPLT]

I'll take a stab. I assume you mean class I and class II navagation. Class one navigation is where your position can be reliably fixed using ground based navaids. (continental US for example) Class II is all other airspace. (North Atlantic for example)

It is listed in the ops specs for a company, here is one I found on the internet, the definition is on page 12 or class I and class II.
http://www.westcoastcharters.com/Pilots/101006-OpsSpecs.pdf

 

[pilotyip]

GPS can be used to establish Class I Nav in areas that would normally be Class II Navigation due to a lack of ground based Nav Aids. Under Class 2 Nav you only have to be within 25 NM of where you think you might be. I believe Class II is the old Celestial Nav standard.

 

[MauleSkinner]

GPS can be used to establish Class I Nav in areas that would normally be Class II Navigation due to a lack of ground based Nav Aids. Under Class 2 Nav you only have to be within 25 NM of where you think you might be. I believe Class II is the old Celestial Nav standard.

Does it become Class I Navigation, or is it simply a method for approving Class II Navigation?

 

[pilotyip]

You would have to check your op specs on what you are approved for with one or two IFR GPS's installed.

 

[MauleSkinner]

You would have to check your op specs on what you are approved for with one or two IFR GPS's installed.

I'll take that to mean "simply a method..."

Fly safe!

David

 

[PARAMOUNT]

Thanks alot that really helps out!!!

 

[pilotyip]

There is no method, there are rules issued by the FAA that direct where you can operate and what equipment is needed. In Class A airspace GPS can be substitued for a Nav Aid.

 

[MauleSkinner]

There is no method, there are rules issued by the FAA that direct where you can operate and what equipment is needed. In Class A airspace GPS can be substitued for a Nav Aid.

Ah, but contrary to popular belief, there IS a method to the FAA's madness...they have criteria that allow them to issue you certain authorizations in your OpSpecs, and having the proper number of GPS's, appropriate training, and a few other odds and ends is part of the METHOD for getting Class II nav approval.

My original question, though, was to clarify that it's STILL Class II Navigation...you've simply got the equipment, training, and approval to USE Class II Navigation.

Your wording on the post I questioned,

GPS can be used to establish Class I Nav in areas that would normally be Class II Navigation due to a lack of ground based Nav Aids.

implied (to me, anyway) that GPS made it Class I navigation, not an authorization for Class II.

Fly safe!

David

 

[Spooky 2]

GPS can be used to establish Class I Nav in areas that would normally be Class II Navigation due to a lack of ground based Nav Aids. Under Class 2 Nav you only have to be within 25 NM of where you think you might be. I believe Class II is the old Celestial Nav standard.

Hey pilotyip, I think better take a good international recurrent. You do not change Class 1 into Class ll airpace period. You can operate in Class ll with GPS/INS and as far as being with 25 miles of where you think you are, simply not so, and that's why most of the N. Atantic and Pacific are RNP10. Take a look at the following for a brief refresher;

ICAO Procedures For Air Navigation, Air Traffic Management (PAN-ATM Doc 4444)

or, ICAO Regional Supplemental Procdeures

I do not think any celestial nav will let you into the MNPS airspace. I have a little time looking through one of those gizzmos and I'm here to tell you would want be as your navigator even when I was current.

Generally speaking and depending on your specific Ops Specs, you cannot operate more than 50 miles offshore with special certification if you are a Part 121 operator. Not sure about 135, but I'll bet it's the same.

The simple answer for dumbies is that if your not in Class l airspace, then your in Class ll airspace. Interestingly, you can be in radar contact and still be in Class ll airspace as wittnessed in some of the No. Pac. regions under the jurisdiction of Anchorage ARTC.

Now where did I put my sextant?