TruAirspeed 4+
James Petty
Designed for iPad
-
- Free
Screenshots
Description
TruAirspeed is a True Airspeed Calculator for the iPhone and iPad. It's a bit different from other true airspeed calculators, in which the pressure altitude is an input. This requires resetting the altimeter to the standard sea level pressure of 29.92"Hg to read the pressure altitude. With TruAirspeed, you input the indicated altitude and the Kollsman window's pressure setting — the app then calculates the pressure altitude, density altitude, true airspeed and mach number for you.
The calculations involved take full account of compressibility effects, but not shock waves, so it's limited to subsonic, non-transonic flight only.
You have a choice of units for inputs and results, and you may choose either a calculator-style keypad (top row: 7-8-9) or a telephone-style keypad (top row: 1-2-3). You may also set a correction factor for your bird's airspeed indicator/pitot-static system, if you know it (mine is 0.95).
What’s New
Version 1.4
In Version 1.4, TruAirspeed has been updated for operation under iOS15 and iPadOS15, and for compatibility with all current iPhone and iPad models. I have also added my Privacy Policy to the Info screen. Otherwise, appearance, features and functionality are unchanged.
Ratings and Reviews
Works as stated. Generous contributor to the flight testing and experimental community.
Another useful offering by Mr. Petty. Thank you sir. I’m enjoying tinkering with Benchmark too. As for the one user saying there is no way to change units; there is. Tap the little “i” in the corner and drill down. As for the other claiming the app is inaccurate, if you mix up C and F, you get a big error (10 knots on a sample I just did).
Well Done
Thank you. Both of your apps are absolutely perfect. Thank you.
No way to choose between F and C?
Is there really no way to change between Celsius and Fahrenheit? That makes it so you need another app to convert temperature. Am I missing something? This seems like a major oversight.
App Privacy
The developer, James Petty, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Information
- Seller
- James Petty
- Size
- 23.1 MB
- Category
- Utilities
- Compatibility
-
- iPhone
- Requires iOS 9.3 or later.
- iPad
- Requires iPadOS 9.3 or later.
- iPod touch
- Requires iOS 9.3 or later.
- Mac
- Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- Apple Vision
- Requires visionOS 1.0 or later.
- Languages
-
English
- Age Rating
- 4+
- Copyright
- © James S. Petty
- Price
- Free