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#21
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I have three 430/530 installations, two in the MU-2 and one in the Helio.
None of the Flight Manual Supplements require a current database for approaches. Mike MU-2 "Peter R." wrote in message oups.com... Jose wrote: 3: if you can't update the database (such as you're in the middle of a trip during the window) you can't do IMC anymore. BTDT - at Sun'n'Fun, no less. Is this a specific limitation spelled out in Garmin's POH supplement? Not that I have done this due to burning my own cards and maintaining a current subscription, but I was under the impression that one could even fly an approach with an expired database, as long as a) the GPS supplement doesn't restrict this and b) the pilot verifies the GPS approach with a published approach plate. If you burn your own database cards, you will note that the database update for the Garmin GNS430/530 is normally released (at least here in the US) ten days or so before becoming current. I suppose it is not unrealistic to be away from home longer than ten days, but that does provide some amount of time to plan for the expiration. BTW, you raise some excellent points about the GPS being a single point of failure. I also have also experienced three different GPS problems during three different flights that rendered the unit inoperative for five minutes or so per event. One was my fault, as I opened a bottle of water at altitude that sprayed all over the GPS, thanks to the pressure difference. The MSG button temporarily shorted out and I could not see any page except the message page. The other two problems were GPS software related. Of these two, the notable one occurred when the database card I had in the unit became *current* during my flight (at the crack of 00:00z of the new day - I had placed the card in a day early for the flight). This was a Bendix-King KLN-94 GPS and at the crack of 00z, a message appeared stating that the unit needed to be rebooted due to the database becoming current. Ridiculous of the unit to do this, but it caught me with my pants down as the unit could not acquire satellites right away upon rebooting. IMC at night and I did not have the VORs set as backup. I scrambled to set up my VORs and only managed to drift off course by a mile or two before getting back on course. That was a good lesson. -- Peter |
#22
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On Thu, 05 May 2005 00:22:53 GMT, "Mike Rapoport"
wrote: I have three 430/530 installations, two in the MU-2 and one in the Helio. None of the Flight Manual Supplements require a current database for approaches. Does the language in the GNS530 pilots guide, page 4: "The database confirmation page appears next and shows the current database information on the NavData card (with the valid operating dates, cycle number and database type included). The database is updated every 28 days and must be current for approved instrument approach operations." not create a requirement that the database be current to use the unit for GPS or overlay approaches? |
#23
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No, it is the flight manual supplement that is controlling. There may be
different supplements out there with different requirments too. Mike MU-2 "Peter Clark" wrote in message ... On Thu, 05 May 2005 00:22:53 GMT, "Mike Rapoport" wrote: I have three 430/530 installations, two in the MU-2 and one in the Helio. None of the Flight Manual Supplements require a current database for approaches. Does the language in the GNS530 pilots guide, page 4: "The database confirmation page appears next and shows the current database information on the NavData card (with the valid operating dates, cycle number and database type included). The database is updated every 28 days and must be current for approved instrument approach operations." not create a requirement that the database be current to use the unit for GPS or overlay approaches? |
#24
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Does the language in the GNS530 pilots guide, page 4:
[...]The database is updated every 28 days and must be current for approved instrument approach operations." not create a requirement that the database be current to use the unit for GPS or overlay approaches? No, it is the flight manual supplement that is controlling. There may be different supplements out there with different requirments too. You don't think "careless and reckless" would occur to the FAA should such operations come to their attention? Jose (r.a.homebuilt retained, though I don't follow that group) -- Get high on gasoline: fly an airplane. for Email, make the obvious change in the address. |
#25
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No. The only FAA approved document is the Flight Manual Supplement.
Mike MU-2 "Jose" wrote in message ... Does the language in the GNS530 pilots guide, page 4: [...]The database is updated every 28 days and must be current for approved instrument approach operations." not create a requirement that the database be current to use the unit for GPS or overlay approaches? No, it is the flight manual supplement that is controlling. There may be different supplements out there with different requirments too. You don't think "careless and reckless" would occur to the FAA should such operations come to their attention? Jose (r.a.homebuilt retained, though I don't follow that group) -- Get high on gasoline: fly an airplane. for Email, make the obvious change in the address. |
#26
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Jose wrote:
3: if you can't update the database (such as you're in the middle of a trip during the window) you can't do IMC anymore. BTDT - at Sun'n'Fun, no less. Chalk another one up for the 480...you can load two cycles up and it auto switches. 4: you're in some bumpy clouds, reach over to switch off the strobes or switch on the pitot heat or something, and a bump causes you to hit the master. Oops - flip it back on. VORs come right back. NAV comes right back. ADF comes right back. DME comes right back. GPS begins to acquire satellites, do its self test, and waits for you to push the lawyer button before continuing. Meanwhile, you're doing 150 knots in the soup and just got an amended clearance. BTDT Does not the 430 NAV section come up immeciately? 6: If you have an electrical failure in IMC, you may need to decide what units to leave on the battery and what units to shut off. I don't know the 430's current draw; you may be better off with just a single VOR in some cases (though I wouldn't be surprised if the old VOR receivers draw more than the new GPSs). BTDT, though without the 430. Depends on what your other radio is. If it's comething modern like an SL30, you're probably OK. But I was looking at the current draw (again for the 480) and it doesn't draw much until you press the PTT on the comm side. |
#27
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Does not the 430 NAV section come up immeciately?
Maybe the VOR part does, but the GPS doesn't. And if you've been navigating by GPS, the VOR might not be set as a backup, but instead be set for something else. But it's a good point, and a good reason to have the 430 VOR set to back up any navigation to/from VORs. Of course, navigating by GPS direct this may not be that often. Jose -- Get high on gasoline: fly an airplane. for Email, make the obvious change in the address. |
#28
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I don't have one handy since I don't own one of these units, but don't
they have some language in the supplement that reads similar to "must be operated in accordance with the pilots guide" or "see pilots guide for further information"? On Thu, 05 May 2005 03:15:34 GMT, "Mike Rapoport" wrote: No. The only FAA approved document is the Flight Manual Supplement. Mike MU-2 "Jose" wrote in message m... Does the language in the GNS530 pilots guide, page 4: [...]The database is updated every 28 days and must be current for approved instrument approach operations." not create a requirement that the database be current to use the unit for GPS or overlay approaches? No, it is the flight manual supplement that is controlling. There may be different supplements out there with different requirments too. You don't think "careless and reckless" would occur to the FAA should such operations come to their attention? Jose (r.a.homebuilt retained, though I don't follow that group) -- Get high on gasoline: fly an airplane. for Email, make the obvious change in the address. |
#29
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Mine doesn't, others may vary.
Mike MU-2 "Peter Clark" wrote in message ... I don't have one handy since I don't own one of these units, but don't they have some language in the supplement that reads similar to "must be operated in accordance with the pilots guide" or "see pilots guide for further information"? On Thu, 05 May 2005 03:15:34 GMT, "Mike Rapoport" wrote: No. The only FAA approved document is the Flight Manual Supplement. Mike MU-2 "Jose" wrote in message om... Does the language in the GNS530 pilots guide, page 4: [...]The database is updated every 28 days and must be current for approved instrument approach operations." not create a requirement that the database be current to use the unit for GPS or overlay approaches? No, it is the flight manual supplement that is controlling. There may be different supplements out there with different requirments too. You don't think "careless and reckless" would occur to the FAA should such operations come to their attention? Jose (r.a.homebuilt retained, though I don't follow that group) -- Get high on gasoline: fly an airplane. for Email, make the obvious change in the address. |
#30
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A LORAN in an RV!! Oh, that is a hoot! I think that would be a first.
No offense. Scott Moore wrote: Michael wrote: You can do everything you need to do with the 430, but there are situations where havng only one is inconvenient. For about $250 you can buy an M1 LORAN. Now you get a second set of nav signals You can get one for less than $250. Just look in the garbage can behind any avionics shop. |
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