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#21
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Larry Dighera wrote:
On Tue, 4 Mar 2008 12:34:43 -0800 (PST), K l e i n wrote in : I think the cost estimates are totally bogus for the GA market. After all, it's only a GPS and a transmitter. I'd be surprised if a complete GA market ADS-B Out/In system couldn't be done for a couple thou. Garmin sells hand-held GPSs for more than a couple of thousand dollars, and they don't require any installation labor. And a Mr Coffee goes for $9.99 at Walmart, neither of which will meet the requirements of ADS-B as proposed. What it SHOULD cost, if the proposal were sensible and allowed for non-TSO handheld equipment, and what it WILL cost given the current proposal requirements are two different things. -- Jim Pennino Remove .spam.sux to reply. |
#22
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On Mar 4, 4:25*pm, wrote:
Larry Dighera wrote: On Tue, 4 Mar 2008 12:34:43 -0800 (PST), K l e i n wrote in : I think the cost estimates are totally bogus for the GA market. *After all, it's only a GPS and a transmitter. I'd be surprised if a complete GA market ADS-B Out/In system couldn't be done for a couple thou. Garmin sells hand-held GPSs for more than a couple of thousand dollars, and they don't require any installation labor. And a Mr Coffee goes for $9.99 at Walmart, neither of which will meet the requirements of ADS-B as proposed. What it SHOULD cost, if the proposal were sensible and allowed for non-TSO handheld equipment, and what it WILL cost given the current proposal requirements are two different things. I read the requirements a little more carefully, and it is true that ADS-B Out, as currently specified must be WAAS, etc. My bad. However, eventually the FAA will figure out that it is in everybody's best interest for low-cost units to become available, especially, for the sport/antique/glider/etc community that has no way to install a fully compliant unit. The FLARM being sold into European glider community does all the "important" functions of ADS-B Out/In for enabling collision avoidance at the $1000 cost level. Works about the same too, except for lower power Out transmission. People buying Cirrus and above aircraft will have no problem with the $10,000 cost level. Garmin will be happy to serve them. FLARM and ZAON, etc will be happy to serve the kilobuck market. K l e i n |
#23
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#24
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In article ,
Larry Dighera wrote: Because the DoD sees this NPRM as a means of surveiling aircraft operations, and seems to be dictating the wording to FAA, ... eh? That's the first I've heard of that. Why do you think that the DOD is pushing any aspect of ADS-B? (I hope you have more than the Alaska demo with ADS-B) -- Bob Noel (goodness, please trim replies!!!) |
#25
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![]() I read the requirements a little more carefully, and it is true that ADS-B Out, as currently specified must be WAAS, etc. My bad. However, eventually the FAA will figure out that it is in everybody's best interest for low-cost units to become available, especially, for the sport/antique/glider/etc community that has no way to install a fully compliant unit. The FLARM being sold into European glider community does all the "important" functions of ADS-B Out/In for enabling collision avoidance at the $1000 cost level. Works about the same too, except for lower power Out transmission. People buying Cirrus and above aircraft will have no problem with the $10,000 cost level. Garmin will be happy to serve them. FLARM and ZAON, etc will be happy to serve the kilobuck market. K l e i n You have more faith in the FAA than I do. Have you read the NPRM? You may be right about Cirrus buyers but what if the cost to a Cessna owner is over $20,000 USD? This NPRM apparently was not vetted with the stakeholders prior to release. After learning more about it I am not sure that UAT is even needed....and the weather and traffic elements from this system may also be unneeded system drivers. My current guess is that retaining Mode-C for GA (perhaps expanding the equipage if a worthwhile mid-air risk reduction can be proven) is adequate. Find a way to reduce the cost of XM weather. Ga folks who want enhanced traffic detection can use flight following/traffic advisory services from ATC and/or get a system such as offered by Zaon or Monroy. If the airlines, air taxi folks, cargo, etc want ADS-B...go for it. They are assuming capacity improvements when the NPRM does not guarantee that separation standards will happen. Ron Lee |
#26
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K l e i n wrote:
However, eventually the FAA will figure out that it is in everybody's best interest for low-cost units to become available, especially, for the sport/antique/glider/etc community that has no way to install a fully compliant unit. Good God! What makes you think that is the case? When has the FAA EVER reduced the certification requirements of a piece of installed equipment? I doubt anyone would argue that a pilot with 496 with WX is in a better position to fly cross country IFR than the same pilot with nothing other than an old VOR receiver and CDI. But only one of those is legal for IFR flight. |
#27
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On Wed, 05 Mar 2008 04:21:38 -0500, Bob Noel
wrote in : Why do you think that the DOD is pushing any aspect of ADS-B? Because of the tone of their NPRM comment to the FAA. Have you read it? http://www.regulations.gov/fdmspubli...ontentType=pdf |
#28
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On Tue, 04 Mar 2008 22:37:12 +0000, Ron Lee wrote:
Would that portable ADS-B equipment meet the NPRM requirements? I doubt it since the NPRM only discusses ADS-B Out. And the Zaon solution, as I understand, is only -In. So this doesn't address the mandate. But what it does do is lower the bar for those that want to get the benefit made available by the mandate. [...] Andrew, if your club folks want weather, buy a 396/496 with XM weather. That's where we're heading. We actually tried to do this concurrent with our first WAAS upgrades, but a combination of a busy shop and the first aircraft being a "problem" (where to put the portable GPS with a full panel and an emergency gear extension lever on the floor {8^) has pushed this back a bit. Rent it out when people need it. We did discuss this, but it has a number of logistic issues. First, we're spread over two airports. Second, we have no "facility" (ie. a club house) where to store the units. So the consensus right now is to simply perform semi-permanent installs in the fleet. Any suggestions for alternatives are very welcome, however. Get a Zaon for traffic. All that they want is available right now. ADS-B is not the answer. The problem with current traffic solutions, from my perspective, is the very limited space in which they can be trusted to operate. One of our airports, for example, is largely shadowed by local geography from the nearest RADAR. So too close to the airport - a place where traffic would be quite nice grin! - means no transponder-based traffic. However, the price of the Zaon units is low enough that we may invest today even knowing that we'll probably want to replace these with ADS-B based units at some point in the (not too nearby) future. - Andrew |
#29
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Andrew Gideon wrote:
On Tue, 04 Mar 2008 22:37:12 +0000, Ron Lee wrote: Would that portable ADS-B equipment meet the NPRM requirements? I doubt it since the NPRM only discusses ADS-B Out. And the Zaon solution, as I understand, is only -In. So this doesn't address the mandate. But what it does do is lower the bar for those that want to get the benefit made available by the mandate. What it does is allow improved traffic detection based upon what GA aircraft already have in their aircraft (Mode-C). ADS-B Out adds nada. Get a Zaon for traffic. All that they want is available right now. ADS-B is not the answer. The problem with current traffic solutions, from my perspective, is the very limited space in which they can be trusted to operate. One of our airports, for example, is largely shadowed by local geography from the nearest RADAR. So too close to the airport - a place where traffic would be quite nice grin! - means no transponder-based traffic. However, the price of the Zaon units is low enough that we may invest today even knowing that we'll probably want to replace these with ADS-B based units at some point in the (not too nearby) future. A Zaon, or Monroy type system supplements see and avoid should you elect to get such a system. There is NO evidence that the ADS-B solution will provide close to 100% coverage at GA pattern altitudes although I have asked the FAA to provide that information. Plus...if you read and understand the NPRM and read my comments, ADS-B Out only has the potential to improve traffic issues IF....big IF...people equip with ADS-B In or talk to ATC. I suspect that the high cost of ADS-B equipage will keep its implementation rate in GA aircraft at well under 10% which is far less than Mode C (about 85% I think). Read the NPRM (and comments.) It is bad. I don't suggest that you not buy ADS-B. Buy whatever you want. But for most GA pilots it is too costly and provides no benefits as far as this NPRM goes. The whole ideal behind GA benefits from ADS-B In appears at this time to be pointless given Zaon/Monroy systems and XM (or equivalent) weather. Ron Lee |
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