Apple released iOS 5.0.1 a few days ago that apparently fixes the delete issue. According to ForeFlight, some app development may also be required, and they are working on that now. For more, check out the company’s blog. If you’ve updated to iOS 5.0.1 and are using a different aviation application, let us know in the comments section how it is working.
iPad and other Apple device users should take note of a rather odd quirk that can occur after updating the operating system to iOS5. According to multiple application developers, the operating system could delete data, including charts and approach plates, if certain conditions are present.
Essentially the device senses the memory is full, or almost full, and will delete previously saved data if new data is brought in. So, the operating system will now favor new data, instead of rejecting it to preserve old data. For those running ForeFlight, WingX, or any of the other large multipurpose apps, you could lose charting data by bringing in any other additional pieces of data. What’s worse, the device will do this with only a minor indication of what’s happening. A small message that says, “Cleaning” will appear under any app that is currently losing data.
To keep this from happening, simply make sure you have extra space on the device. Most of the multipurpose charting apps run around 7 GB, while Jeppesen’s charting app is around 1 GB. The problem comes from having either multiple aviation apps, or having the device loaded with other big programs.
This issue brings to light an important consideration in using the iPad, iPhone, and iPod Touch for aviation. Make sure to preflight the apps. After you have downloaded the data you want to use on the flight, disable Wifi and 3G, and open your app. Then scroll through the charts and airport data to make sure you have everything you need. This way you’ll know that what you have actually resides on the device, and that you’re not just streaming it off Wifi. Also, each app should have a list of downloaded charts. Check the list for an additional source of confirmation.
Let us know in the comments section if you’ve experienced this problem, or if you have any iOS5 reviews.