DOes SD make use of the barometric device in iPad4

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DOes SD make use of the barometric device in iPad4

DOes SD make use of the barometric device in iPad4

Author	Message
drnicolas	drnicolas posted 5/5/2016 8:25:21 AM Topic Details Share Topic
Group: Forum Members Posts: 99, Visits: 114	AFAIK AirNav Pro uses the barmometricdevice in an iPad along with QNH as a quite precise altimeter. Can SD do the same ?
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Tim Dawson	Tim Dawson posted 5/5/2016 10:14:47 AM Post Details Share Post
Group: Forum Members Posts: 8.1K, Visits: 9.4K	No. It is a wildly imprecise altimeter at best, and it would be a bad idea to use that technology to feed any kind of altimeter reading in SkyDemon.
	Reply Like 57
JulianScarfe	JulianScarfe posted 6/2/2016 4:53:34 PM Post Details Share Post
Group: Forum Members Posts: 15, Visits: 27	Tim Dawson (5/5/2016) No. It is a wildly imprecise altimeter at best, and it would be a bad idea to use that technology to feed any kind of altimeter reading in SkyDemon. But I'd appreciate a level alert of some sort. You could make it a relative one. For example, asked to descend from FL90 to FL70, I'd appreciate a heads up when I've got e.g. 500 and 200 feet to go, to avoid level busts. For that purpose, it's only relative level that's important. You could have a "descend n000 ft" selection to trigger it. It wouldn't really matter if it was geometric or barometric altitude for that purpose. You can estimate the level change to +/-10% quite easily.
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Tim Dawson	Tim Dawson posted 6/3/2016 9:12:11 AM Post Details Share Post
Group: Forum Members Posts: 8.1K, Visits: 9.4K	The only useful alert you can generate with a phone barometer is one that says you might want to use oxygen.
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