# Pavement Concession Calculator — ACR/PCR Ratio Calculator

> ACR/PCR Ratio Calculator (iPhone/iPad app by JJ Ryan Consulting.)

- Source: https://appshunter.io/ios/app/pavement-concession-calculator/id6752644103 (this page in markdown: same URL + `.md`)
- Developer: [JJ Ryan Consulting](https://appshunter.io/developer/1840360897)
- Category: Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 38 MB
- Languages: American English
- Released: 2026-06-10
- Data updated: 2026-06-19
- User reviews in markdown: https://appshunter.io/ios/app/pavement-concession-calculator/id6752644103/reviews.md

## What is Pavement Concession Calculator?

The AAA Pavement Concession Calculator is a professional mobile application designed for the aviation and infrastructure sectors. Built in collaboration with the Australian Airports Association, the app simplifies the complex task of evaluating aircraft-to-runway compatibility by providing accurate, regulation-aligned calculations.

With this tool, users can compare Aircraft Classification Rating (ACR) against Pavement Classification Rating (PCR) and tyre pressure limits, ensuring safe, efficient, and compliant aircraft operations on aerodrome pavements.

Key Features:

Aircraft & Aerodrome Data Management: Add, edit, and search aircraft models, runways, and aerodrome details.

ACR/PCR Calculator: Instantly calculate pavement concessions, with colour-coded messages to highlight when operations are within limits or require engineering assessment.

Tyre Pressure Assessment: Check whether aircraft tyre pressures comply with runway limits, with clear guidance for concession approvals.

Offline Capability: All calculations and data storage are fully available without internet access, ideal for field conditions.

Export Options: Generate and share PDF reports of results for operational records and compliance checks.


## Version history (last 5 releases)

### 41 — 2026-06-11

We changed some part of UI

### 40 — 2026-06-10

Adding ICAO certified Badge. Adding a new, more accurate machine learning algorithm for new ACR prediction.

### 1.0.37 — 2026-04-17

Field formatting added to numeric fields to improve user experience. Calibration ratios adjusted for better ACR calculation. Additional aircraft data added.

### 1.0.33 — 2026-04-10

This version implements the new formula to derive an indicative ACR value, following the ICAO method. The new formula also incorporates the calibration ratio for ACR subclasses A, B, C, and D. 

To learn more about the ACR formula, visit the JJ Ryan Consulting website and read the article titled “Technical Commentary for the Indicative ACR Calculation Method Incorporated into the AAA Pavement Calculator App.”

### 1.0.32 — 2026-03-19

This version includes runway and PCR data for 68 additional aerodromes from Australia.

---

*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 2026-06-19.*