# A&P PRO — FAA Part147 AMT Toolbox

> Aircraft mechanic's toolbox for calculations and FAA references. (iPhone/iPad app by Neil Rohan.)

- Source: https://appshunter.io/ios/app/a-and-p-pro/id1588582143 (this page in markdown: same URL + `.md`)
- Developer: [Neil Rohan](https://appshunter.io/developer/1522614743)
- Category: Utilities, Education
- Price: Free
- Rating: 5.00/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 18 MB
- Languages: English
- Released: 2021-10-03
- Data updated: 2026-08-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/a-and-p-pro/id1588582143/reviews.md

## What is A&P PRO?

Airframe and PowerPlant Professional (A&P PRO)



This app assists the aircraft airframe and powerplant (A&P) mechanic in determining common measurements in several subject matter areas. Source for formulae is FAA AC43-13b. It is designed for students enrolled in an FAA Part 147 Maintenance Technician School. Instructors at such schools will also benefit from its use as will graduate mechanics. It has been formatted for iPhones with 5.5" screens or greater as well as 7" and 10" tablets. A tablet is the ideal device.



Sheet Metal:

- Setback
- Developed Width
- Rivet Size
- Bend Allowance



Weight and Balance:

- Basic Empty Weight Center of Gravity (CG)
- CG Adjustments using Ballast and/or Weight Shift
- CG Adjustment due to Alterations
- Min/Max CG limits from Adverse Loading



Basic Electricity

- Resistor Color Codes (by Color Band and by Value)
- Ohm's Law Demonstrator
- Impedance Circuits
- Voltage/Current Divider Circuits
- Component (resistor, capacitor, inductor) Addition (parallel/series)
- Reactance Computations
- Frequency, Period and Wavelength calculator



Aviation Science

- Levers (Class I, II, III, Inclined Plane)
- Gas Laws (Boyles, Charles, Lussacs and Combined)

Unit Conversion Calculator

- Length
- Power
- Area
- Volume
- Weight
- Temperature
- Speed
- Data Storage

- Angle

- Time






Disclaimer

The user of A&P PRO for any specific application without an independent verification of its accuracy does so at his/her own risk and assumes any and all liability resulting from such use. No warranty is offered as to the accuracy of results. Users should have a thorough understanding of the relevant theoretical criteria.

 

A&P PRO
Copyright 2024
TurboSoftSolutions

## Key features

- Sheet Metal calculations
- Weight and Balance calculations
- Basic Electricity formulas
- Aviation Science principles
- Unit Conversion calculator
- Reference data from FAA AC43-13b

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/a-and-p-pro/id1588582143/reviews.md

### 5/5 — Got me through my basic electricity homework!

*2024-01-15*

Lifesaver!!

## Frequently asked questions about A&P PRO

### What is A&P PRO used for?

A&P PRO is a utility app designed to assist aircraft airframe and powerplant (A&P) mechanics with common measurements and calculations. It covers areas like sheet metal, weight and balance, basic electricity, and aviation science, referencing FAA AC43-13b.

### Who is the target audience for A&P PRO?

The app is specifically designed for students enrolled in FAA Part 147 Maintenance Technician Schools, as well as graduate mechanics. Instructors may also find it beneficial.

### What kind of calculations does A&P PRO offer?

A&P PRO offers calculations for sheet metal (setback, developed width, rivet size, bend allowance), weight and balance (CG calculations, ballast adjustments), basic electricity (resistor codes, Ohm's Law), and aviation science (levers, gas laws).

### Does A&P PRO include a unit conversion tool?

Yes, A&P PRO features a comprehensive unit conversion calculator supporting length, power, area, volume, weight, temperature, speed, data storage, angle, and time.

### What devices is A&P PRO available on?

A&P PRO is formatted for iPhones with 5.5" screens or greater, as well as 7" and 10" tablets. It is also compatible with iPods.

### How often is A&P PRO updated?

The latest version of A&P PRO is 4.2, and it was last updated on April 21, 2024. This indicates a relatively active development cycle.

### What is the user rating for A&P PRO?

A&P PRO has a perfect rating of 5.0 stars based on 2 ratings, suggesting a very positive user reception among its current users.

### Is A&P PRO free to use?

Yes, A&P PRO is available for free. There are no in-app purchases or advertisements mentioned, making it a completely free utility.

## Version history (last 5 releases)

### 5.1.0 — 2026-08-01

fixed share option for iPad

### 5.0.1 — 2026-07-17

Menu system upgrades; formatting improvements; added Share/Support menu options

### 4.2 — 2024-04-21

Substituted a new plist file

### 4.1 — 2024-04-20

plist file added for compliance with Apple Missing API declarations

### 4.0 — 2024-04-19

Expanded Unit Conversion inventory. Added direct access app rating/review option

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## More apps by Neil Rohan

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All apps by Neil Rohan: https://appshunter.io/developer/1522614743

## Related topics

[aircraft mechanic](https://appshunter.io/ios/topics/aircraft-mechanic) · [aviation mechanic prepware](https://appshunter.io/ios/topics/aviation-mechanic-prepware) · [aircraft maintenance](https://appshunter.io/ios/topics/aircraft-maintenance)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-05.*