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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. |
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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. |
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