Civil Twilight Calculator 4+

Name: Civil Twilight Calculator
Price: 99 INR
Rating: 3 (1 reviews)
Author: Aviametrix, LLC

Aviametrix, LLC

Designed for iPad

- 3.0 • 1 Rating

- ₹ 99

Description

Everyone who works outside needs to know about daylight hours!

Pilots often need to know when night occurs. The FAA uses several different times of day for calling night vs. day, depending on the purpose.

Most Apps find the twilight times by going to a database on the internet. That means you need a network connection to use them.

This app is unique because it does all the celestial calculations internally! No internet required! Find the start of night at your destination while you are still in the air!

Lots of features:

Find sunrise and sunset at your current GPS location. Update sun calculations and sun dial every minute and every 10 km of movement.

Find sunrise and sunset at any airport in the world (The app has built-in coordinates for 11,000 airports around the world)

If you are connected (WiFi or Cell Data), you can look up the twilight times at any address in the world. Internet or cell access now also improves time zone accuracy.

The App calculates sunrise and sunset accurately forwards and backwards in time for 60 years.

The App calculates regular (standard) Sunrise/Sunset, Civil Twilight, Nautical Twilight, and Astronomical Twilight.

The App contains the relevant FAA regulations if you need a refresher!

26 Sept 2021

Version 1.25

Updated for iOS 15!
fixed a "Night Mode" screen issue

3.0 out of 5

1 Rating

Major Flaw

In flight or at sea its not easy to get gps signal. Also there should be an option to manually feed coordinates, as GPS is already available onboard.

Sir, that feature is indeed built-in to the App!
If you tap the “Change Location” button on the main page, it will accept a set of GPS Coordinates (in decimal format, I.e., 43.105, -83.40).
If that feature was your “major flaw”, please reconsider a better rating. Thank you.

Regarding the slow acquisition speed of the iPhone at sea or in the air, it is in the design of these mobile devices to rapidly get a rough position from a cell tower or WiFi network to start the satellite process. If no cell tower is within range, the device will slowly scan the satellite frequencies which will take much longer to compute a fix for the location. It is not an issue with app, or any gps-based iOS app.

The developer, Aviametrix, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.