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"msa XYZ Vor"  
User currently offlineGoboeing From United States of America, joined Jun 2000, 2829 posts, RR: 14
Posted (14 years 11 months 1 week 5 days 13 hours ago) and read 2105 times:

Please take a look at this to understand my question:
In the lower right hand corner of the approach chart for LAX RWY 25R, there's a circle that says around it MSA LAX VOR 25nm. In the center is the symbol for a VOR station, and then it's divided into 3 sections, each with a box with an altitude in it and radials as dividers. What I want to know is what this whole circle thing means. I've seen it on all the charts I've looked at, and it's the only thing I don't understand. Thanks to anyone who can answer this.

3 replies: All unread, jump to last
User currently offlineN400QX From , joined Dec 1969, posts, RR:
Reply 1, posted (14 years 11 months 1 week 5 days 12 hours ago) and read 2091 times:

MSA stands for 'minimum safe altitude' in a 25 nm radius of the LAX VOR. In the example you cited, the MSA between the LAX 165 and 270 radials is 7700. Between the LAX R-270 and R-050 is 2900.

User currently offlineCYLW From Canada, joined Apr 2000, 461 posts, RR: 0
Reply 2, posted (14 years 11 months 1 week 5 days 9 hours ago) and read 2087 times:

Some MSAs are off NDBs too. Like this one. This one also doesn't have separate sections indicating that the land is pretty flat 25nm around this NDB.


User currently offlineGoboeing From United States of America, joined Jun 2000, 2829 posts, RR: 14
Reply 3, posted (14 years 11 months 1 week 4 days 18 hours ago) and read 2075 times:

Thanks. Now I get it.

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