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Old 11-06-2006, 09:10 AM   #1  
Piper Commander
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Default Class I and Class II Navigation

Anybody know anything about the differences? I have to figure out the general area when flights from Boston and New York Area transition from Class I navigation to Class II along the eastern seaboard. Also, at what point in South American do flight transition to Class I from Class II. I know that there is no definite answer because of reroutes and the multiple flight plans available for these flights but there must be a way to figure out a box where this takes place.

All help is greatly appreciated

Illini
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Old 11-06-2006, 01:30 PM   #2  
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Default

Quote:
Originally Posted by Illini View Post
Anybody know anything about the differences? I have to figure out the general area when flights from Boston and New York Area transition from Class I navigation to Class II along the eastern seaboard. Also, at what point in South American do flight transition to Class I from Class II. I know that there is no definite answer because of reroutes and the multiple flight plans available for these flights but there must be a way to figure out a box where this takes place.

All help is greatly appreciated

Illini
Class II navigation (as defined by the FAA):

Quote:
is any en route flight operation or portion of a flight operation that is not Class I navigation.
Gee that helps... It goes on:

Quote:
Any operation or portion of an en route operation is Class II
navigation if it takes place outside the officially designated
operational service volumes of International Civil Aviation
Organization (ICAO) standard ground-based navigational
aids (NAVAIDs), such as VHF omni-directional range
(VOR), VOR/distance measuring equipment (DME), and
non-directional beacon (NDB). Class II navigation is
dependent on the use of a Long Range Navigation System

(LRNS). An LRNS may be satellite-based (e.g., Global
Positioning System (GPS)), self contained (e.g., Inertial
Reference System (IRS)), or referenced to ground stations
(e.g., LORAN-C).
It's much easier to simply define class II navigation than it is to define class I nav... That being the case, it's just easier to send you to the appropriate documents on the FAA website for you to look over:

Class I navigation info:
http://www.faa.gov/library/manuals/e...4/4_001_03.pdf

Class II navigation info:
http://www.faa.gov/library/manuals/e...4/4_001_04.pdf
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Old 11-06-2006, 02:34 PM   #3  
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Default

Thanks for the help. Seems like your quite knowledgeable about all this technical info
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Old 11-06-2006, 03:35 PM   #4  
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Quote:
Originally Posted by Illini View Post
Thanks for the help. Seems like your quite knowledgeable about all this technical info
Nah. I'm just good at finding stuff in the regs and on the net (or making up some good BS)

Either way, glad to be of assistance!
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