# C150 Pad

> Cessna 150 flight planning and performance calculation tool. (iPhone/iPad app by Gyronimo, LLC.)

- Source: https://appshunter.io/ios/app/c150-pad/id1067564808 (this page in markdown: same URL + `.md`)
- Developer: [Gyronimo, LLC](https://appshunter.io/developer/536898885)
- Category: Education, Reference
- Price: $16.99
- Rating: 4.00/5 from 4 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.6 · 24 MB
- Languages: English
- Released: 2015-12-18
- Data updated: 2026-07-28
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/c150-pad/id1067564808/reviews.md

## What is C150 Pad?

Gyronimo Performance Pad -Cessna 150-
The ultimate EFB computer for Mass & Balance and Performance.

For Cessna 150 with fixed pitch propeller 69 inches 
and Continental Engine O-200-A, 100hp at 2750 RPM


Compatibility: requires iPad 3 or newer, or iPad Mini Retina 


Calculate and interpolate performance data using the actual values 
from the Cessna 150 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 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 C150 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 C150 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




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



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.

Mode Switch:

The Performance Pad can be used in two Modes:

"Individual Mode" 
All calculations can be done independently from each other.

"Plan Mode"
Calculated values will be forwarded to the next page and an additional "Flight Summary Page" is 
available. Choose this mode if you want to do a complete performance planning.




Disclaimer: 
The author disclaims any liability for any direct, indirect, incidental, or consequential losses or damages in connection with your access to or use of this software. The information contained in this software is for general information purposes only.

## Key features

- Mass & Balance calculations
- Takeoff and Landing distance computation
- Climb performance analysis
- Optimal cruise altitude finder
- Stall speed calculation
- Load manifest generation
- Scenario "what if" analysis

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/c150-pad/id1067564808/reviews.md

### 2/5 — Crashing and freezes

*2025-02-12*

I have used this app for other aircraft in the Robinsons for many many years and it worked great. However, I am recently purchasing a Cessna 150 and thought I would be able to use this app for that aircraft but it keeps crashing anytime. I leave the weight and balance home screen and select a different tab after the tab opens and then I close the tab the thing freezes and doesn’t allow me to press anything so I have to close the app force stop and then reopen it to get it to work. And then it will freeze again if I do it anything else so I’m unable to save any work that I’ve done or changes and aircraft that I have tried to create profiles for, please fix this developers.

## Frequently asked questions about C150 Pad

### What aircraft is C150 Pad designed for?

C150 Pad is specifically designed for the Cessna 150 aircraft, featuring calculations for fixed pitch propellers and Continental Engine O-200-A.

### What kind of performance data can C150 Pad calculate?

It calculates mass and balance, takeoff and landing distances, climb data, optimal cruise altitudes, and stall speeds, all based on the Cessna 150 Pilot's Operating Handbook.

### Can C150 Pad be used to create "what if" scenarios?

Yes, users can experiment with different values using sliders to create "what if" scenarios and see immediate results in high-resolution graphics.

### What are the minimum device requirements for C150 Pad?

The application requires an iPad 3 or newer, or an iPad Mini Retina.

### How does C150 Pad handle different runway conditions?

The takeoff page allows users to input various runway conditions, from paved dry surfaces to long grass or snow, to accurately calculate ground roll and landing distance.

### Can I save my aircraft settings and scenarios in C150 Pad?

Yes, the Setup page allows you to load and save up to five aircraft settings and scenarios for quick access.

### Does C150 Pad have ads?

No, C150 Pad does not contain advertisements.

### How often is C150 Pad updated?

The latest version, 1.6, was last updated on January 30, 2025, indicating active development and maintenance.

## Version history (last 5 releases)

### 1.6 — 2025-01-30

update to latest iOS version, general bug fixes

### 1.5 — 2021-10-14

Bug fixes and performance improvements

### 1.4 — 2016-09-22

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

fixed app type label on setup page

### 1.2 — 2016-09-21

updated summary page

### 1.1 — 2016-08-15

added manual input option for all values, added decimal conversion on WB page.

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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 2026-07-28.*