Jun 14, 2009 · OROCA is not a regulatory minimum altitude defined in 91.177. They are charted as a guide only, primarily for emergency use, or when you don't want to or need to do more in …

Aug 15, 2012 · I'm doing a short IFR flight tomorrow, about 50 miles. The OROCA in my quadrant is 3500 and in the destination quadrant it is 3800. This is non mountainous terrain. On the VFR …

Jan 20, 2010 · OROCA provides obstruction clearance with a 1000 foot buffer in designated non-mountainous areas and a 2000 foot buffer in designated mountainous areas within the United …

Mar 7, 2013 · First, OROCA includes obstacles, not just elevation, while the tool I linked reflects terrain elevations only, AFAIK (that's also true for the VFR charts MEF or maximum elevation …

Oct 29, 2017 · The OROCA is useful and better than the MEF on a Sectional, since the OROCA includes the additional 1000-2000 ft. altitude in mountainous or non-mountainous terrain and …

Mar 17, 2016 · 3) AIM 4-4-9 A pilot departing VFR, either intending to or needing to obtain an IFR clearance en route, must be aware of the position of the aircraft and the relative …

Jun 13, 2013 · OROCA is useful if you're off-airways in a lost comm situation and don't have a sectional to determine the terrain/obstructions on your off-airways routing to comply with the …

Feb 7, 2013 · On our most recent journey we overflew San Antonio's airspace twice. We were utilizing VFR flight following both times. I parked our butt up at 7500 feet and 6500 feet, …

Feb 17, 2017 · OROCA and MSA are similar in concept but only difference to point out is the distances from specific point where obstacle clearance is guaranteed. MSA uses 25nm and …

Apr 12, 2016 · Note the OROCA is the most pessimistic altitude within that quadrangle. Your actual off-airway altitude is based on the terrain with 4 miles of your course. Of course, very …