TruAirspeed

Published by: James Petty
Downloads
Revenue

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).
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TruAirspeed FAQ

  • Is TruAirspeed free?

    Yes, TruAirspeed is completely free and it doesn't have any in-app purchases or subscriptions.

  • Is TruAirspeed legit?

    Not enough reviews to make a reliable assessment. The app needs more user feedback.

    Thanks for the vote

  • How much does TruAirspeed cost?

    TruAirspeed is free.

  • What is TruAirspeed revenue?

    To get estimated revenue of TruAirspeed app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.

User Rating
App is not rated in Norway yet.
Ratings History

TruAirspeed Reviews

Well Done

ECPilot on

United States

Thank you. Both of your apps are absolutely perfect. Thank you.

Works as stated. Generous contributor to the flight testing and experimental community.

mesae on

United States

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).

Incorrect compared to other calculators

jack22378888 on

United States

Off by between 5-10 kts. Not reliable

No way to choose between F and C?

hish747 on

United States

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.

Excellent

General Mutley on

United States

A great tool - thanks :-)

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Make flight calculations easy

TruAirspeed Installs

Last 30 days

TruAirspeed Revenue

Last 30 days

TruAirspeed Revenue and Downloads

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