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Measuring slope angle

 
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  #1  
Old 07-01-2014, 08:02 PM
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Join Date: Oct 2013
Location: Taupo, New Zealand
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Measuring slope angle

I am looking at getting a Terrapin as a Rangefinder, My phone has an Applied Ballistics App on it, so you can line the edge of your phone with the target to get the angle into the equation. Is this method good enough or should I be using some other device to get the correct angle of the target to enter into my Ballistic App ?
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  #2  
Old 07-01-2014, 09:34 PM
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Location: North Central Valley California
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Re: Measuring slope angle

Does your phone app. have a name? It's difficult to evaluate a product without knowing who markets it. You can test your app. on known slopes and if the results are accurate I'd say you certainly can rely on them in a hunting environment.
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  #3  
Old 07-01-2014, 09:50 PM
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Re: Measuring slope angle

I use a iPhone and shooter. I can line the iPhone up and will read the angle as your phone does. If you purchase a Terrapin and one of the "C" (PLRF10C) models it will give you the Equivalent Horizontal Distance. The Lecia 1600B which I use does the same thing and also spits out the degree of slope. The phone angle will work out a ways but for the long range stuff use your range finder. So I think you are covered!
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  #4  
Old 07-02-2014, 12:13 AM
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Re: Measuring slope angle

Quote:
Originally Posted by FearNoWind View Post
Does your phone app. have a name? It's difficult to evaluate a product without knowing who markets it. You can test your app. on known slopes and if the results are accurate I'd say you certainly can rely on them in a hunting environment.
Yea it is called ( Applied Ballistics )
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  #5  
Old 07-02-2014, 11:20 AM
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Join Date: Jan 2013
Location: Meridian, Idaho
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Re: Measuring slope angle

I use an iPod with Shooter as well as a Leica 1600B. Both work as they should. I would have no issue using your Applied program to work up a solution.
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  #6  
Old 07-03-2014, 12:10 AM
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Join Date: Jun 2008
Location: NE Washington State
Posts: 22
Re: Measuring slope angle

What happens when your electronic devices fail? Learn to use cosines and adjust accordingly. Not trying to be harsh but in the field when it counts and electronics fail you will be better off
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  #7  
Old 07-03-2014, 06:30 AM
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Join Date: Jan 2013
Location: Meridian, Idaho
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Re: Measuring slope angle

If my range finder finder and iPod both fail I would probably go home since the bad luck fairy was having a field day. Just because people use the best tools out there doesn't mean they can not use old school tools. It is certainly a good idea to know how to do ranging, wind, and slope estimation with formulas and have drop charts handy for multiple elevations and temperature variations. However, the question was about using iPhone and AB program as a tool. The answer is that it does work well.
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