please captain, what's the exatly meaning of the codes on the en-route chart MORA (letter a) and MOCA (letter T)? These meaning there are relating with altitude? true or altimetric? thanks a lot.
For the MOCA depicted with a T, you can remember the T like a line (min altitude) with an obstruction/obstacle underneath it. ---- (altitude) | (obstruction)
There are two types of MORA; Route MORA depicted along the route with an "a" after the altitude ex 8000a. and Grid MORA which you find on a map inside a 1 degree by 1 degree lat/long usually depicted in bold numbers. some areas who follow FAA rules might refer to it as OROCA.
![Minimum Sector Altitude (MSA) - [How To Keep The Separation From The Terrain At All Times].](http://i.ytimg.com/vi/oP7rhP68bvk/mqdefault.jpg)
Excellent summary!
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Great explanation..
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please captain, what's the exatly meaning of the codes on the en-route chart MORA (letter a) and MOCA (letter T)? These meaning there are relating with altitude? true or altimetric? thanks a lot.
Hi Shiela, All Altitudes are barometric altitudes except when it is followed by G i.e 5000G then it is a GPS based altitude.
Hope this helped
it means for "a" the MORA and for "T" the MOCA basically.
For the MOCA depicted with a T, you can remember the T like a line (min altitude) with an obstruction/obstacle underneath it.
---- (altitude)
| (obstruction)
Great Video. Thanks.
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Nice captain thanks
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great explanation! i see sometimes a red color altitude under the name of the airway on jeppesen enrc charts ex: FL 260. is that a MEA altitude too?
dose MORA is dipected on the chart can you expline more about and dose it look like please ? 🙏
There are two types of MORA; Route MORA depicted along the route with an "a" after the altitude ex 8000a. and Grid MORA which you find on a map inside a 1 degree by 1 degree lat/long usually depicted in bold numbers. some areas who follow FAA rules might refer to it as OROCA.
thank you so much for the reply but i think in your video you never mentioned the MRA its really hard to understand we have the MOCA why we need MRA.