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Mountainous Terrain

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flyboyzz1

Well-known member
Joined
Jun 7, 2004
Posts
719
Is this the definition of mountainous terrain = 3000ft change in 10nm OR above 5000ft MSL? I've also heard that if an airport is 2000'MSL than its mountainous terrain. Which is correct?
 
theres a page in your jepp subscription that shows you where mountainous terrain is. Additionally there is another map in the AIM.
 
OK I will take a look but I was more looking for how the FAA defines mountainous terrain I think it's in FAR 95 but I dont have it and cant find it online
 
It also has something to do with the terrains vertical elevation rise within a certain distance. I cant remember the specifics.
 
Y care?
 
The FAR (it is part 95) that deals with mountainous terrain just draws out the jepp/aim map with lat/long and gives no definition as I recall. I was told once that it was a change of X feet per X miles but I have never found proof of that.
 
You all are combining two different things. What is Mountainous terrain and when is terrain depicted on jepps charts.

Mountainous terrian = Chapter 5 of the AIM. Section 6. 5-6-5 has a map that depicts what areas are mountainous and what areas are not. Thats how you know. There is also a map in the front of your jepps.

http://www.faa.gov/airports_airtraf...ions/ATpubs/AIM/Chap5/aim0506.html#skC334ROBE

When does jepps display color terrian? Terrain is deicted on approach charts when either terrian within the plan view is at least 4,000 above the airport OR, terrain is 2,000 feet above the airport within six miles. Reffer to Jeppesens introduction or their Chart Clinic June 99.

http://www.jeppesen.com/wlcs/index.jsp?section=resources&content=publications_aopa.jsp
 
ICAO defines mountainous terrain as a 3000+ foot rise in 10NM. This is in your chart glossary in your Jepps.

Big empasis on the ICAO part. The FAA defines it geographically in Part 95, as everyone has been saying, which is great, if you're in the United States.
 

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