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#91
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IFR use of handheld GPS
Steven P. McNicoll wrote:
"Sam Spade" wrote in message news:iZx6g.175204$bm6.170325@fed1read04... A legal interp has the full force and effect of regulation. It does not. It does so. |
#92
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IFR use of handheld GPS
Dane Spearing wrote:
ii) VFR and hand-held GPS systems are not authorized for IFR navigation, for instrument approaches, or as a principle instrument flight references. During IFR operations, they may be considered only an aid to situational awareness. Hmm. I couldn't stand reading through the whole Advisory Circular, but as far as I can tell, the paragraph I above is the opinion of whomever wrote the written test prep. AC 20-130A seems to only give requirements for obtaining IFR approval for a panel mount system and give criteria for when the "VFR Only" sticker must be applied. But does it even say what "VFR Only" means operationally? It doesn't mention handheld GPS at all (AFAIK). |
#93
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IFR use of handheld GPS
"Bob Noel" wrote in message ... In article , "Steven P. McNicoll" wrote: And how many AC's are referenced in the FARs? I don't know. You'll have to count them yourself. can you find even one? Certainly. PART 21-CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS § 21.305 Approval of materials, parts, processes, and appliances. Whenever a material, part, process, or appliance is required to be approved under this chapter, it may be approved- (a) Under a Parts Manufacturer Approval issued under §21.303; (b) Under a Technical Standard Order issued by the Administrator. Advisory Circular 20-110 contains a list of Technical Standard Orders that may be used to obtain approval. Copies of the Advisory Circular may be obtained from the U.S. Department of Transportation, Publication Section (M-443.1), Washington, D.C. 20590; (c) In conjunction with type certification procedures for a product; or (d) In any other manner approved by the Administrator. [Amdt. 21-38, 37 FR 10659, May 26, 1972, as amended by Amdt. 21-50, 45 FR 38346, June 9, 1980] |
#94
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IFR use of handheld GPS
"Sam Spade" wrote in message news:CYg7g.175496$bm6.80336@fed1read04... No, I need more help to understand how VOR or NDB direct-route assignments by ATC are based on AGL altitudes. They aren't. It was you that said they were. That's one of the reasons your statement was incorrect. |
#95
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IFR use of handheld GPS
"Sam Spade" wrote in message news_g7g.175497$bm6.167703@fed1read04... I cited Part 95. It is a rule. Part 95 has many rules in it. Cite the specific rule. |
#96
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IFR use of handheld GPS
"Sam Spade" wrote in message news:z%g7g.175498$bm6.169019@fed1read04... Where is your reference that GPS is primary for sole means en route navigation? I don't need one. The burden of proof is on those that claim it's use is prohibited. It's up to them to cite the FAR that prohibits such use. |
#97
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IFR use of handheld GPS
"Sam Spade" wrote in message news:G0h7g.175499$bm6.83888@fed1read04... Steven P. McNicoll wrote: "Sam Spade" wrote in message news:iZx6g.175204$bm6.170325@fed1read04... A legal interp has the full force and effect of regulation. It does not. It does so. Prove it. |
#98
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IFR use of handheld GPS
"Dane Spearing" wrote in message ... So, the initial purpose of this thread was to discuss whether or not one could use a handheld GPS for IFR navigation. Lots of people have been tossing around lots of opinions with little or no references to rules or guidance to back them up (hardly surprising...this is usenet after all...) Anyway, for my own personal edification and enlightenment, I went and tracked down the official FAA Advisory Circular that specifies what the requirements are for the use of GPS under IFR. It's entitled "Airworthiness Approval of Navigation or Flight Management Systems Integrating Multiple Navigation Sensors", and is FAA AC 20-130A. It's about as exciting to read as the dictionary (again, hardly surprising). However, the Gleim Instrument Pilot Flight Manueuvers and Practical Test Prep guide (which is where I found the reference in the first place) does a nice job of summarizing the requirements for use of GPS under IFR as specified in AC 20-130A. It states: Authorization to conduct any GPS operation under IFR requires that: a) GPS navigation equipment used must be FAA-approved and the installation must be done in accordance with FAA requirements i) Approval for the use of the GPS for IFR operations, and any limitations, will be found in the airplane's POH (also called the FAA-approved Airplane Flight Manual) and the airplane's logbook ii) VFR and hand-held GPS systems are not authorized for IFR navigation, for instrument approaches, or as a principle instrument flight references. During IFR operations, they may be considered only an aid to situational awareness. Aircraft using GPS navigation equipment under IFR must be equipped with an approved and operational alternate means of navigation appropriate to the flight. a) Active monitoring of the alternative navigation equipment is not required if the GPS receiver uses RAIM for integrity monitoring. b) Active monitoring of the alternative navigation equipment is required when the RAIM capability of the GPS equipment is lost. This seems fairly clear to me..... Did you read the first paragraph of AC 20-130A? The third sentence is most revealing: 1. PURPOSE. This advisory circular (AC) establishes an acceptable means, but not the only means, of obtaining airworthiness approval of multi-sensor navigation or flight management systems (hereafter referred to as multi-sensor equipment) integrating data from multiple navigation sensors for use as a navigation system for oceanic and remote, domestic en route, terminal, and non-precision instrument approach [except localizer, localizer directional aid (LDA) and simplified directional facility (SDF)] operations. This document does not address systems incorporating differential GPS capability. Like all advisory material, this AC is not mandatory and does not constitute a requirement. As such, the terms "shall" and "must" used in this AC pertain to an applicant who chooses to follow the method presented. The criteria of AC 90-45A, Approval of Area Navigation Systems for Use in the U.S. National Airspace System, does not apply to certification of equipment described in this AC. This AC supersedes previous GPS installation guidance contained in: FAA Notice 8110.48, Airworthiness Approval of Navigation or Flight Management Systems Integrating Multiple Navigation Sensors, and FAA Interim Guidance Memoranda dated February 25, 1991; April 5, 1991; March 20, 1992; July 20, 1992; and September 21, 1993. The appropriate information contained in those documents is incorporated in this AC. Here's another little gem from the Advisory Circular Checklist, AC No. 00-2.15: 3. Explanation of the AC system. The FAA issues advisory circulars to inform the aviation public in a systematic way of non-regulatory material. Unless incorporated into a regulation by reference, the contents of an advisory circular are not binding on the public. Advisory circulars are issued in a numbered-subject system corresponding to the subject areas of the Federal Aviation Regulations (FAR) (Title 14, Code of Federal Regulations, Chapter I, Federal Aviation Administration); and Chapter III, Commercial Space Transportation, Federal Aviation Administration, Department of Transportation, Parts 400-450. An AC is issued to provide guidance and information in a designated subject area or to show a method acceptable to the Administrator for complying with a related Federal Aviation Regulation. |
#99
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IFR use of handheld GPS
Steven P. McNicoll wrote:
"Sam Spade" wrote in message news:CYg7g.175496$bm6.80336@fed1read04... No, I need more help to understand how VOR or NDB direct-route assignments by ATC are based on AGL altitudes. They aren't. It was you that said they were. That's one of the reasons your statement was incorrect. You're so full of **** and deception, Steve. Here is my original post: The "rule" is that direct routes initiated by ATC are limited to the service volume of VOR (or rarely, NDBs) and the controller can assure that MIAs will not be violated. You're the one that introduced "AGL altitudes." Do you have clue about the term "intellectual honesty?" |
#100
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IFR use of handheld GPS
Steven P. McNicoll wrote:
"Sam Spade" wrote in message news:z%g7g.175498$bm6.169019@fed1read04... Where is your reference that GPS is primary for sole means en route navigation? I don't need one. The burden of proof is on those that claim it's use is prohibited. It's up to them to cite the FAR that prohibits such use. That is a giant load of crap. |
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