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post #27 of Old 03-18-2013
davidpm
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Re: Ipad as sailing instrument....

Three minor points:
1. There are two categories of IPAD. One is wifi only and one has wifi and cellular.
The wifi only model does not have the built-in gps chip.
You need to get the cellular model.
You do not need to purchase the cellular plan as the gps chip will still work but you do need the cellular model or you have to purchase a separate plug-in compatible gps dongle for the wifi only unit.
2. The ability to see in bright sunlight is an issue for most of us.
3. The battery will run down very quickly so you need a charging source.

The lesson from the Icarus story is not about human failing.
It is a lesson about the limitations of wax as an adhesive.
If you have an engineering problem solve it.

Last edited by davidpm; 03-18-2013 at 09:58 PM.
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