Op Spec H103 DME ARC?
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Op Spec H103 DME ARC?
Does anyone have a reference as to what is meant in FAA Op Spec H103 as to the meaning of "DME ARC any light configuration", which lists a minimum HAT of 500'? It seems "DME ARC" means different things to different people relating to an instrument approach and I am seeking an official reference.
Please be more specific. Are you asking what constitutes light configuration, a DME ARC, or what is a DME ARC instrument approach? If asking if a DME ARC IAP pertains only to approaches with an arc on the final vs. an intermediate segment, I would suggest asking the FAA general counsel.
I dug around a bit....and was thinking H 103 had to do with Landing Minima for Non-Precision Approaches and that the minimum Height Above Touchdown (HAT 500 Feet) is what that indicates.
Some more information about what provokes the question would be helpful.
Some more information about what provokes the question would be helpful.
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I don't have more details or information other than what the Op Spec H103 states, which is the problem. It has a table simply stating the minimum HAT for a DME ARC (any light configuration) is 500'. I am trying to find a reference as what approach this applies to. An approach which a final segment having an arc? An approach that has any segment (such an an intermediate segment as an arc)?
IMHO, the H103 DME/ARC criteria pertains to a procedure identified as a DME ARC approach, as in, “COPTER VOR/DME ARC 1”. TERPs defines such a procedure (TACAN, VOR/DME, and VOR, using an arcing final approach segment), however I don’t know if any exist. Furthermore, I don’t think the FAA expects, for example, a LOC approach with a DME/ARC from IAF to LOC interception to be flown to a HAT minimum of 500’. I am not aware of any IAP minima that is affected by how one gets to the FAF. Also note, the equivalent FAA fixed-wing OpSpec has no such thing as a DME/ARC procedure or minima.
I think this is a widely misunderstood and abused procedure. See FAA Order 8260 for further information. Again, the FAA General Counsel is your best source for clarification.
I think this is a widely misunderstood and abused procedure. See FAA Order 8260 for further information. Again, the FAA General Counsel is your best source for clarification.
Last edited by JimEli; 30th Apr 2019 at 20:24. Reason: clarification
