NAC-DFD® Decelerometer
Neubert Aero Corp Utilities iPhoneiPadiPod touch
NAC-DFD® Decelerometer is a free Utilities app for iPhone and iPad by Neubert Aero Corp. Requires iOS 13.0. Updated January 25, 2025.
- Price
- Free
- on the App Store
- Size
- 3 MB
- Age 4+
- Updated
- Jan 25
- 2025 · v2.68
Screenshots
About NAC-DFD® Decelerometer
Terms of Service: https://airportnac.com/terms-and-conditions/ EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ NAC-Dynamic Friction Decelerometer (NAC-DFD®) The NAC-DFD® is an electronic friction testing device designed for airport runways. This 3-axis mobile iOS™ application enables airport operators to "spot-check" contaminated surfaces during winter runway operations. Key Features: Accurate Measurements: Records vehicle braking values by measuring the "g" force or lock-wheel braking action during qualified tests. Automated Reporting: Automatically generates final reports segmented into runway thirds: "touchdown," "midfield," and "rollout." Comprehensive Data Recording: Captures all necessary data, including time, date, operator, and assigned user ID. Versatile Contaminant Selection: Allows operators to choose from 14 different contaminant types for reporting runway conditions during winter operations. Easy Data Export: Supports exporting results using the standard print function. Additional Information: The NAC-DFD® assists airport operators in assessing the effectiveness of friction-enhancing treatments by indicating trends in runway friction levels. It is approved by the Federal Aviation Administration, as listed in Advisory Circular 150/5200-30C, Appendix 3. Note: For continued testing, a subscription is required.
What’s new
Version 2.68 · Updated January 25, 2025
* Updated app description to clarify subscription requirements for continued testing. * Added a subscription page screenshot for improved transparency.
App privacy
The developer, Neubert Aero Corp, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to NAC-DFD® Decelerometer
Looking for apps like NAC-DFD® Decelerometer? Here are 6 similar apps on the App Store. The highest rated is Acceleration Calculator - (5.0/5), and all 6 are free to download.
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Acceleration Calculator -
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Horizontal Accelerometer
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Reef.Tools
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| NAC-DFD® Decelerometer | – | Free | January 25, 2025 | |
| KEANS Alerts | – | Free | Oct 7, 2025 | Compare |
| Scoreboard-Score Point Tracker | – | Free | Jan 3, 2026 | Compare |
| Acceleration Calculator - | 5.0 / 5 (4) | Free | Jan 2, 2024 | Compare |
| Horizontal Accelerometer | – | Free | Oct 22, 2026 | Compare |
| Acc.elerometer | 5.0 / 5 (1) | Free | Sep 20, 2026 | Compare |
| Reef.Tools | 3.0 / 5 (2) | Free | Jan 7, 2025 | Compare |