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#11
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WAAS upgrade info for Garmin 430
"Ron Natalie" wrote in message ... cool...294 is a new winner Our new one is 250. http://www.naco.faa.gov/d-tpp/0613/05924R36.PDF |
#12
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WAAS upgrade info for Garmin 430
Stan Prevost wrote:
"Ron Natalie" wrote in message ... cool...294 is a new winner Our new one is 250. http://www.naco.faa.gov/d-tpp/0613/05924R36.PDF Do I hear 249? |
#13
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WAAS upgrade info for Garmin 430
Ron Natalie wrote:
Kevin Clarke wrote: Is there any value to WAAS yet, beyond the "Gee Whiz" factor? Can I do precision approaches with it yet? Gives you a couple of features: 1. There are LPV approaches which have vertical guidance and DH's a bit higher than ILS's (I think the lowest I've seen is 300'). 2. Removes the condition to pick an alternate that has a non-GPS approach you are equipped to fly. 3. The TSO mandates some nice features such as the autosequencing of the course reversal and missed approach that the 430/530 was previously missing. It also gives you an advisory glideslope on non-precision approaches, so it makes the mechanics the same for all approaches, just like an ILS. Gives you a constant rate descent to the MAP with no level-offs, guaranteed to be at or above all the step-down altitudes. At least the GNS480 does this, not sure it's specified in the TSO or not. |
#14
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WAAS upgrade info for Garmin 430
Paul kgyy wrote:
I called the shop today that installed my Garmin 430 and asked about WAAS. They offered 2 approaches. 1. Get the upgrade. Cost is $1500 + $95 freight (!) + $100 to install a different antenna. Terrain is an additional $500. Availability is uncertain. 2. Replace the entire unit (2 years old). Antenna replacement is still required, but terrain is only $250 extra on the new units - total cost about $2200. New units are available now. Living in the midwest, I'm ambivalent about the value of the terrain info. That apparently resides on the second data card, so I assume it's another annual fee to Jeppesen. My shop just wrote up a tech brief on this topic. Looks like $1500 + $200 for the new antenna installation for an average Cessna. If you're the kind of person that tools around in the soup a lot it looks to be a worthwhile upgrade. It's nice to see that Garmin decided not to go ahead with the tiered pricing model...that would have added insult to injury. After all, they took their time getting it to market. There have been significant changes to the TSO requirements for the coax feedline, so depending primarily on the length of the run, you may need to pay to install a new low-loss feedline. The GPS unit must also be installed within about a foot laterally of the pilot's viewing centerline (the Attitude indicator, usually) and no lower than the lowest flight instrument. This means that both older Beech and Cirrus drivers will need to install annunciators (more $$$). You can get the brief at: http://www.pennavionics.com/ -Doug -------------------- Doug Vetter, ATP/CFI http://www.dvatp.com -------------------- |
#15
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WAAS upgrade info for Garmin 430
Kevin Clarke wrote: Is there any value to WAAS yet, beyond the "Gee Whiz" factor? Can I do precision approaches with it yet? 646 LPV exist as of 12/21/06. Most of the LPVs are to ~250ft unless obstacles raise the minima. Two LPVs (PUB and DLH) have been published wth a 200ft HAT, although NOTAMed to 250' until an internal safety assessment document is completed(expected sometime in the spring). By the way, even if there is no LPV procedure, with WAAS you can fly to LNAV/VNAV minima as well. Brad |
#16
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WAAS upgrade info for Garmin 430
Ron Natalie wrote: Stan Prevost wrote: "Ron Natalie" wrote in message ... cool...294 is a new winner Our new one is 250. http://www.naco.faa.gov/d-tpp/0613/05924R36.PDF Do I hear 249? 200... http://204.108.4.16/d-tpp/0612/00125R9.PDF check the NOTAMs before you go... |
#17
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WAAS upgrade info for Garmin 430
Ron Natalie wrote: Kevin Clarke wrote: Is there any value to WAAS yet, beyond the "Gee Whiz" factor? Can I do precision approaches with it yet? Gives you a couple of features: 1. There are LPV approaches which have vertical guidance and DH's a bit higher than ILS's (I think the lowest I've seen is 300'). Check your own backyard! Here's a few in the NoVA area... RMN is 254 (http://204.108.4.16/d-tpp/0612/09743R33.PDF) JYO is 258 (http://204.108.4.16/d-tpp/0612/05288R17.PDF) HEF is 298 (http://204.108.4.16/d-tpp/0612/05326R16L.PDF) Now put that GNS 480 to work! |
#18
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WAAS upgrade info for Garmin 430
More info on the terrain: that apparently resides on the #2 data card
and is a separate update process that comes from Garmin rather than from Jeppesen. Cost is expected to be $35 per update or $195 for 12 monthly updates. Mountains don't move much, but I suppose there are always towers. However, I wonder about the value of terrain in the midwest. I suppose if one were in an emergency situation it could be handy to see where the nearest antenna farm is. |
#19
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WAAS upgrade info for Garmin 430
In article . com,
"Brad" wrote: 200... http://204.108.4.16/d-tpp/0612/00125R9.PDF check the NOTAMs before you go... Is there anything I'm supposed to do with the "WAAS CH 90502 W09A" information? Are there receivers which require you to tune the WAAS corrections in manually? I've always assumed that a WAAS-equipped GPS would just do that automatically. |
#20
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WAAS upgrade info for Garmin 430
Doug Vetter wrote:
The GPS unit must also be installed within about a foot laterally of the pilot's viewing centerline (the Attitude indicator, usually) and no lower than the lowest flight instrument. This means that both older Beech and Cirrus drivers will need to install annunciators (more $$$). Wasn't this also a requirement of the non-WAAS IFR installations? The 480 actually has a few waivers of the distance requirement for Bo's and the like. It was just easier for me to install the GPS/NAV annunciator though. |
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