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Old 17-10-2011, 05:25 PM   #1
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I Phone Apps

Might be of use to someone....


http://itunes.apple.com/us/app/boat-...466829842?mt=8

http://itunes.apple.com/us/app/prope...459768648?mt=8
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Old 17-10-2011, 06:07 PM   #2
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sweet

Been waiting for one of those!
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Old 17-10-2011, 06:19 PM   #3
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How accurate is the speed one? Has anyone got any real world figures to test? I'd try it but I have no idea how much my boat weighs
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Old 17-10-2011, 06:35 PM   #4
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Seems to be an adaptation of the Harry Schoell formula, which is supposed to be reasonably accurate if you get the constant right for the hull design/weight etc.
So you almost need to test the boat to derive the constant, which kind of defeats the purpose really!
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Old 17-10-2011, 07:46 PM   #5
bor
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there is also a prop slip calculator from hering wich is free just search the app store on "prop slip calculator"
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Old 18-10-2011, 11:08 AM   #6
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That didn't work on my 3gs...

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there is also a prop slip calculator from hering wich is free just search the app store on "prop slip calculator"
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Old 18-10-2011, 01:33 PM   #7
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check out the link below, I put this onto my Iphone.

Nice little gps system and also gives you a speed reading. I don't think it's recommended as a main GPS but a nice backup.

The App is free to download then you pay about 27 for the local charts

Hope this might help some people.

http://ww1.jeppesen.com/marine/light...ces-charts.jsp
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Old 22-10-2011, 11:07 AM   #8
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Quote:
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check out the link below, I put this onto my Iphone.

Nice little gps system and also gives you a speed reading. I don't think it's recommended as a main GPS but a nice backup.

The App is free to download then you pay about 27 for the local charts

Hope this might help some people.

http://ww1.jeppesen.com/marine/light...ces-charts.jsp
Might as well go with Navionics then and have a fantastic system!
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Old 22-10-2011, 11:22 AM   #9
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http://www.heringpropellers.com/prop-slip


They do an APP for this as well
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