MEA is established by VOR reception when distance or
obstacles require an altitude higher than terrain clearance
only requires. You may or may not be given a clearance, if
radar coverage is not available.

Buy or rent some oxygen equipment.



"Dan" wrote in message
ups.com...
| There are some places on IFR enroute charts where the
OROCA (Off-route
| obstruction clearance altitude) is actually lower than
MEAs on an
| airway in the same quadrant. The higher MEA is NOT due to
obstacles in
| adjacent quadrants.
|
| If I'm on the airway, usually they don't let folks go down
to the MOCA,
| however if I file direct off-airways, how likely am I to
be able to get
| the ORCA? The goal is trying to stay below oxygen
altitudes in
| mountainous terrain while remaining IFR.
|
| --Dan
|