# C172R

> Cessna 172R mass, balance, and performance calculation tool for pilots. (iPhone/iPad app by Gyronimo, LLC.)

- Source: https://appshunter.io/ios/app/c172r/id657761619 (this page in markdown: same URL + `.md`)
- Developer: [Gyronimo, LLC](https://appshunter.io/developer/536898885)
- Category: Education, Reference
- Price: $16.99
- Rating: 5.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 30 MB
- Languages: American English
- Released: 2013-06-11
- Data updated: 2026-06-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/c172r/id657761619/reviews.md

## What is C172R?

Gyronimo Performance Pad -Cessna 172R-
The ultimate computer for Mass & Balance and Performance.

Compatibility: requires iPad 2 or newer, or iPad Mini Retina 

Calculate and interpolate performance data using the actual values 
from the Cessna 172 R Pilot's Operating Handbook (POH).

Finish your complete fight planning in just a few seconds.
Performance planning has never been easier and quicker.

Results are updated immediately and displayed in high resolution graphics, 
enhanced for the iPad 2/3 and iPad Mini.


Change all important values using sliders. 
Experiment with the results and create "what if" scenarios in no time.


Find your optimal cruise altitude, takeoff ground roll, landing distance,
climb data and stall speeds.

The Performance Pad C172R has seven main pages:

1. The Mass & Balance (or Weight & Balance) Page
Calculates Center of Gravity, Moments, Takeoff and Zero Fuel Mass as well as Percent MAC (% MAC).

Set person and baggage weights in seconds using the convenient sliders.
Check if the CG is within limits using three graphical displays
- Moment Envelope
- CG envelope 
- Aircraft axis
or see a complete load manifest that you can send to your email address
to quickly prove that you have completed the Weight & Balance for you flight.



2. The Takeoff Page
Using the actual data from the C172R Operating Handbook
the Performance Pad calculates and displays Ground Roll and Landing Distance
based on:

- Aircraft Mass
- Takeoff Elevation in MSL (Pressure Altitude and Density Altitude will be computed)
- Outside Air Temperature (OAT)
- Altimeter Setting
- Runway Conditions (i.e. paved dry to long grass or snow)
- Runway Slope
- Wind Conditions

Wind Components Computer
- Use the Wind Components page to determine your headwind or tailwind component.
Rotate the wind dial to set wind direction, set windspeed and the results will be 
transferred to your takeoff computations automatically!

3. The Climb page
Calculates time, fuel and distance based on
- Difference between Takeoff Elevation and intended Flight Level
- Altimeter Setting
- Outside Air Temperature (OAT)
- Altimeter Setting 
- Headwind or Tailwind Component

Also the Rate of Climb and Climb Speed will be displayed.


4. The Cruise Page
Using the actual data from the Pilot's Operating Handbook you can 
determine the optimal cruise altitude based on 
- Trip Distance 
- Flight Level
- Engine RPM
- Temperature 
- Wind and Altimeter Setting

and calculate Break Horse Power (% BHP), Fuel Flow and True Airspeed

The Max Range and Range including Reserve will be displayed graphically.

The Fuel Management allows to enter Reserve Time for Contingency, Alternate and Final Reserve.
The Fuel Usage is displayed graphically.

Fuel Efficiency is computed in Miles per Gallon and Liter per 100km to set set results in a perspective.

5. Landing Page
Calculates Ground Roll and Landing Distance based on wind, elevation, altimeter setting etc. 
Like on the Takeoff Page you can use the Wind Components Computer to quickly determine head- or tailwind components

6. Stall Speed Page.
Calculates The Stall Speed based on Bank Angle and Flap Settings.
Stall Speed will be computed as KIAS and KCAS using the actual values from the Cessna POH.

7. Setup
- Load and Save up to five Aircraft Settings and Scenarios.
- Send a Mass & Balance Summary to your email address. 
- Visit our video channel and watch tutorials and video manuals.

## Key features

- Mass & Balance calculations
- Takeoff and Landing distance computation
- Climb performance analysis
- Optimal cruise altitude determination
- Fuel management and efficiency
- Interactive sliders for scenario testing
- High-resolution graphics

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/c172r/id657761619/reviews.md

### 1/5 — iOS 8.3 Broke This App

*2015-04-15*

I paid $20 for an app I haven't been able to use a week after purchasing it. $20. Gone. Expect a week+ in app interruption when iOS gets updated.

### 5/5 — Awesome App

*2013-06-14*

The app is almost intuitive and is user friendly.

## Frequently asked questions about C172R

### What is C172R?

C172R is a performance calculator designed specifically for the Cessna 172R aircraft. It helps pilots with mass and balance calculations, as well as various performance metrics for flight planning.

### What kind of performance data does C172R calculate?

C172R calculates takeoff ground roll, landing distance, climb data, stall speeds, optimal cruise altitude, and fuel efficiency. It uses actual data from the Cessna 172 R Pilot's Operating Handbook.

### Can I use C172R to check if my aircraft is within weight and balance limits?

Yes, C172R includes a Mass & Balance page that calculates Center of Gravity, Moments, and Percent MAC. It provides graphical displays and a load manifest that can be emailed.

### Does C172R support different runway conditions for takeoff and landing calculations?

Yes, the Takeoff and Landing pages allow you to input various runway conditions, from paved dry to long grass or snow, to accurately calculate ground roll and landing distance.

### How does C172R handle wind for performance calculations?

C172R features a Wind Components Computer where you can set wind direction and speed. These results are then automatically transferred to your takeoff computations, and wind components are also used for climb calculations.

### What devices is C172R compatible with?

C172R requires an iPad 2 or newer, or an iPad Mini Retina. It is optimized for high-resolution graphics on these devices.

### How often is C172R updated?

The latest version of C172R is 2.4, which was last updated on June 20, 2025. This indicates a commitment to keeping the app current.

### Does C172R have ads?

No, C172R does not contain advertisements. It is a paid application focused on providing a clean and uninterrupted user experience for flight planning.

## Version history (last 5 releases)

### 2.4 — 2025-06-20

General bug fixes and performance improvements.

### 2.3 — 2022-05-02

General fixes and performance update for IOS15

### 2.2 — 2016-08-09

This app has been updated by Apple to display the Apple Watch app icon.

added manual input for TO page

### 2.1 — 2016-08-03

added manual value input options

### 2.0 — 2015-04-20

update to iOS8.3

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## More apps by Gyronimo, LLC

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All apps by Gyronimo, LLC: https://appshunter.io/developer/536898885

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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 2026-06-01.*