---
title: "AircraftPower - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "AircraftPower is an Aircraft Engine Performance App. It uses a standard reciprocating engine performance model to calculate and display the sea level and altitude performance of 74 normally-aspirated "
---

# AircraftPower — United States

![AircraftPower App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/e4/d3/aa/e4d3aaff-7447-eaf7-c1b0-484b65452531/AppIcon-0-0-1x_U007emarketing-0-6-0-85-220.png/434x0w.png)

**Developer:** [James Petty](https://apptail.io/developer/james-petty-qcL)
**Category:** Utilities
**Rating:** 4.9/5 (18 ratings)
**Price:** Free
**Bundle ID:** PHI.Ae.AcftPowerChart
**Store:** Apple App Store
**Country:** United States
**Version:** 4.5 (released 2025-09-17)
**Original Release:** 2013-10-24
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id718023187)
**AppTail Page:** [https://apptail.io/app/aircraftpower-jTdl/united-states](https://apptail.io/app/aircraftpower-jTdl/united-states)

## AircraftPower Description
AircraftPower is an Aircraft Engine Performance App. It uses a standard reciprocating engine performance model to calculate and display the sea level and altitude performance of 74 normally-aspirated Continental® engines and 108 normally-aspirated Lycoming® engines. 

A graphic display shows the engine performance chart and illustrates the manual construction method for determining altitude performance that we learned in ground school (and promptly forgot). As the user changes the input values, using the sliders or the custom keypad, for manifold pressure (or % power), rpm, pressure altitude and outside air temperature, the power output and percent power (or manifold pressure required) are displayed, and dotted lines and colored dots in the graphic display follow the manual construction method. While the graphics aren't really necessary, they are instructive (and interesting) to watch.

The user may choose english or metric units for altitude, altimeter setting, temperature, manifold pressure and power output (however, the graphic always uses english units), and may select default values for the inputs and the engine.  The user can also choose to input the indicated altitude instead of the pressure altitude (the default), and choose to input the % rated power instead of the manifold pressure.  If using the indicated altitude, an input window for the altimeter setting appears.

## AircraftPower Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/9a/71/e0/9a71e0dc-4802-2805-7b65-663c378fd017/0a8e7b2e-8d80-4075-a6dc-c7c3699f6eb2_iPad_U002a_-_Main_U002c_port.PNG/1536x2048.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/11/ad/54/11ad542e-1ea8-1aba-1754-14a2078ec874/5415e29c-5e91-4c28-b48d-9bff4a5e7ac1_iPad_U002a_-_Main_U002c_land.PNG/2048x1536.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/57/c9/f3/57c9f37b-3c6e-32ed-6a4f-7acd754d30f0/f2f9b179-bc05-41bc-bdef-ee668bd30e82_iPad_U002a_-_Info_U002c_port.PNG/1536x2048.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f2/66/a3/f266a371-51a8-f8d1-e8b2-10c332aa22a6/a9fc5a94-36e7-45b4-8b2a-6363256f31c9_iPad_U002a_-_Prefs_U002c_port.PNG/1536x2048.png)

## AircraftPower Rating Breakdown in United States
- 5 stars: 17 (94%)
- 4 stars: 1 (6%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## AircraftPower Reviews in United States

### ***** "Fantastic"
Great work James. Thanks for the IO550 additions!
-- Giving up, again, 2024-09-05

### ***** "Awesome"
This is perfect, great job excellent UI. I’d pay for it.
-- acrobret, 2023-01-22

### ***** "Works Great"
I use it on most flights out of the traffic  pattern. If he included IAS, I would also get TAS without need of the second app.
-- Elmshoot, 2022-11-22

### ***** "About time!"
Great app, it’s about time we had something like available for those of us with older EMS systems. 
One question:
Add a custom feature for engines that develop more power as a result of porting, and/or non-standard pistons?

Thank you!
-- N184DA, 2022-08-03

### ***** "Great app!"
A fellow RV’er friend of mine showed me this app, which I’ve now downloaded. It’s well done and super helpful!
-- rongawer, 2022-03-30

### ***** "Awesome: must to have!!!!"
I can't believe no one did that app before!! It's amazing, you thought about everything even the current altitude vs std press altitude: bravo!
Just missing one thing: no indication when above max continuous power (dotted line in the manual following MAP).
Thanks for the aviation community!
-- JODEL D9, 2019-09-02

### ****- "Thanks for the Cool APP"
Very Neat APP.  I did not see where the engines were being operated versus peak EGT?  I assume you were using 100 degrees ROP as best power setting?
-- GU7797a, 2019-06-16

### ***** "Thank you"
Figuring out the Lycoming charts that you can’t read and  understand in the owners manual on determining horsepower based upon manifold pressure, RPM, non-standard temperature and pressure altitude. I was pulling my hair out and I said to myself we need an app for this and you created it! Thank you so much. Very well designed.
-- SilasJ, 2019-06-08

### ***** "Well Done App!"
James has done a great job of making a once tedious job of calculating engine altitude performance, very easy!  Simple to use and informative, good planning tool to save SA on your Lycoming predicted power.
-- PokRPL8r, 2015-04-23

### ***** "Amazing App"
Simple app that does just what it says.
Allows you to painlessly compute percent power.
Funny, I just ferried a plane coast to coast last week and wondered why no one had done this.
...today, here it is.

One bug though.
Engine choice does not remain as default.
(iPad 2)
-- Hanson24, 2013-12-19

[View all AircraftPower reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)




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## AircraftPower Available In
- [United States](https://apptail.io/app/aircraftpower-jTdl/united-states)
- [Canada](https://apptail.io/app/aircraftpower-jTdl/canada)
- [Austria](https://apptail.io/app/aircraftpower-jTdl/austria)
- [Sweden](https://apptail.io/app/aircraftpower-jTdl/sweden)
- [Germany](https://apptail.io/app/aircraftpower-jTdl/germany)
- [New Zealand](https://apptail.io/app/aircraftpower-jTdl/new-zealand)
- [Switzerland](https://apptail.io/app/aircraftpower-jTdl/switzerland)
- [Australia](https://apptail.io/app/aircraftpower-jTdl/australia)
- [United Kingdom](https://apptail.io/app/aircraftpower-jTdl/united-kingdom)
- [Czechia](https://apptail.io/app/aircraftpower-jTdl/czechia)
- [Denmark](https://apptail.io/app/aircraftpower-jTdl/denmark)
- [Dominican Republic](https://apptail.io/app/aircraftpower-jTdl/dominican-republic)
- [Algeria](https://apptail.io/app/aircraftpower-jTdl/algeria)
- [Ecuador](https://apptail.io/app/aircraftpower-jTdl/ecuador)
- [Egypt](https://apptail.io/app/aircraftpower-jTdl/egypt)
- [Spain](https://apptail.io/app/aircraftpower-jTdl/spain)
- [Finland](https://apptail.io/app/aircraftpower-jTdl/finland)
- [France](https://apptail.io/app/aircraftpower-jTdl/france)
- [Greece](https://apptail.io/app/aircraftpower-jTdl/greece)
- [Hong Kong SAR China](https://apptail.io/app/aircraftpower-jTdl/hong-kong)
- [Hungary](https://apptail.io/app/aircraftpower-jTdl/hungary)
- [Indonesia](https://apptail.io/app/aircraftpower-jTdl/indonesia)
- [Ireland](https://apptail.io/app/aircraftpower-jTdl/ireland)
- [Israel](https://apptail.io/app/aircraftpower-jTdl/israel)
- [India](https://apptail.io/app/aircraftpower-jTdl/india)
- [Italy](https://apptail.io/app/aircraftpower-jTdl/italy)
- [Japan](https://apptail.io/app/aircraftpower-jTdl/japan)
- [South Korea](https://apptail.io/app/aircraftpower-jTdl/south-korea)
- [Kuwait](https://apptail.io/app/aircraftpower-jTdl/kuwait)
- [Kazakhstan](https://apptail.io/app/aircraftpower-jTdl/kazakhstan)
- [Lebanon](https://apptail.io/app/aircraftpower-jTdl/lebanon)
- [Sri Lanka](https://apptail.io/app/aircraftpower-jTdl/sri-lanka)
- [Lithuania](https://apptail.io/app/aircraftpower-jTdl/lithuania)
- [Mexico](https://apptail.io/app/aircraftpower-jTdl/mexico)
- [Malaysia](https://apptail.io/app/aircraftpower-jTdl/malaysia)
- [Nigeria](https://apptail.io/app/aircraftpower-jTdl/nigeria)
- [Netherlands](https://apptail.io/app/aircraftpower-jTdl/netherlands)
- [Norway](https://apptail.io/app/aircraftpower-jTdl/norway)
- [Peru](https://apptail.io/app/aircraftpower-jTdl/peru)
- [Philippines](https://apptail.io/app/aircraftpower-jTdl/philippines)
- [Pakistan](https://apptail.io/app/aircraftpower-jTdl/pakistan)
- [Poland](https://apptail.io/app/aircraftpower-jTdl/poland)
- [Portugal](https://apptail.io/app/aircraftpower-jTdl/portugal)
- [Romania](https://apptail.io/app/aircraftpower-jTdl/romania)
- [Russia](https://apptail.io/app/aircraftpower-jTdl/russia)
- [Saudi Arabia](https://apptail.io/app/aircraftpower-jTdl/saudi-arabia)
- [Singapore](https://apptail.io/app/aircraftpower-jTdl/singapore)
- [Thailand](https://apptail.io/app/aircraftpower-jTdl/thailand)
- [Türkiye](https://apptail.io/app/aircraftpower-jTdl/turkey)
- [Taiwan](https://apptail.io/app/aircraftpower-jTdl/taiwan)
- [Ukraine](https://apptail.io/app/aircraftpower-jTdl/ukraine)
- [Vietnam](https://apptail.io/app/aircraftpower-jTdl/vietnam)
- [United Arab Emirates](https://apptail.io/app/aircraftpower-jTdl/united-arab-emirates)
- [South Africa](https://apptail.io/app/aircraftpower-jTdl/south-africa)
- [Argentina](https://apptail.io/app/aircraftpower-jTdl/argentina)
- [Belgium](https://apptail.io/app/aircraftpower-jTdl/belgium)
- [Bahrain](https://apptail.io/app/aircraftpower-jTdl/bahrain)
- [Brazil](https://apptail.io/app/aircraftpower-jTdl/brazil)
- [Belarus](https://apptail.io/app/aircraftpower-jTdl/belarus)
- [Chile](https://apptail.io/app/aircraftpower-jTdl/chile)
- [China](https://apptail.io/app/aircraftpower-jTdl/china)
- [Colombia](https://apptail.io/app/aircraftpower-jTdl/colombia)

---

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