# R44 Raven II > Helicopter performance and weight & balance calculator for Robinson R44 Raven II. (iPhone/iPad app by Gyronimo, LLC.) - Source: https://appshunter.io/ios/app/r44-raven-ii/id536898882 (this page in markdown: same URL + `.md`) - Developer: [Gyronimo, LLC](https://appshunter.io/developer/536898885) - Category: Education, Navigation - Price: $29.99 - Rating: 5.00/5 from 2 App Store ratings · 8 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 23 MB - Languages: English - Released: 2012-07-24 - Data updated: 2026-07-28 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/r44-raven-ii/id536898882/reviews.md ## What is R44 Raven II? Gyronimo R44 Raven II Performance Pad The EFB flight computer revolution for helicopter weight and balance. For iPad 2 and newer. Optimized for Retina Displays. This version can be connected to our online database Fleet Control. With Fleet Control you can update BEW and aircraft data. We recommend Fleet Control for Flight Schools and operators of multiple helicopters. - Load and save up to 10 helicopters ( with Fleet Control you can load/save unlimited helicopters, please contact us) - New improved performance calculations - Standard or Bladder Tanks - Ltr/Gal and kg/lbs conversions - Load Manifest with digital signature Tim Tucker, Robinson Helicopter Company’s Chief Instructor and Claus Richter founder of Gyronimo Systems have teamed together to produce a series of new performance apps for the Robinson R22, R44 and R66. These new apps build on the already popular Robinson apps developed by Gyronimo Systems but add the insights and knowledge of Robinson’s well known Chief Instructor. Each app includes not only weight & balance and navigation calculations, but also all critical performance calculations such as Manifold Pressure, Vne and IGE/OGE limits. With the Gyronimo Performance Pad you can calculate weight & balance, performance and navigation data in just a few seconds! It is designed for one specific aircraft, the Robinson R44 Raven I / Astro, and contains all necessary flight and performance data. Quickly change all important values using sliders! This enables students and flight instructors to experiment with the values and create "what if" scenarios in no time. The Performance Pad has four main pages 1. Weight and Balance Page Set person and baggage values in seconds using the convenient sliders. - Enter your email address and receive a complete Load Manifest. 2. Performance Page Using the data from your Weight & Balance page the pad calculates: - Out of Ground Effect (OGE) ceiling - In Ground Effect (IGE) ceiling - Density Altitude - Maximum Continuous Power (MCP) - 5 minute take off power - Never Exceed Speed (V ne) 3. Flight Time Page - Calibrated and True Airspeed - True and Magnetic Course - Wind Correction Angle (WCA) - Compass Heading - Ground Speed - Flight Time for a specific distance 4. Helicopter Page - Main and Tail Rotor dimensions and - Power Plant and Fuel - Airspeed and other limitations - Definitions - Change units from US gallons / lbs to Kg/Liter. No other flight computer for the R44 offers all these features combined in one program. Whether you are a professional pilot, student or flight instructor, we are sure that you will benefit from the possibilities of this revolutionary flight computer. Product Support We hope that the Performance Pad is intuitive to use, however if you have questions or reports please contact us anytime at: info@gyronimosystems.com and we will reply usually within the same day! Check out our video tutorials! ## Key features - Weight and balance calculations - Performance calculations (IGE/OGE ceiling, Density Altitude) - Navigation data (airspeed, course, wind correction) - Load manifest with digital signature - Unit conversions (Ltr/Gal, kg/lbs) - Save up to 10 helicopters ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/r44-raven-ii/id536898882/reviews.md ### 5/5 — Excellent app! *2017-08-18* Well done! Weight and balance is amazing Performance is perfect and so easy I would of like a checklist ### 2/5 — Response from tech support is nil *2016-08-25* I ask why the performance numbers on max power disagrees with the apps numbers. Submitted this question many time without an answer. Great graphics. Now if I could rely on the data it puts out..... ### 2/5 — Get rid of slide bar *2015-11-02* The slide bar just doesn't work for my normal size fingers. Impossible to set the exact weights. If you fly in high DA and need to know your W&B to the pound, stick to pen and paper. ### 4/5 — Great app and worth the money - almost read to understand. *2015-04-09, version 5.0* Superb app, makes ease of all calculations required and I can see it being especially good for doing very quick weight and balance calcs when doing multiple lifts / tours. I have rated this a four for three reasons... 1. It would be nice if the app would automatically tell you maximum fuel allowed on board for your given weight configuration - you have to remember to increase the slider currently. Not a problem with the app at all but it would be a nice feature. 2. For owners of multiple types of Robinson machines R22 / R44 and their various models it would be nice if there was a bundle package that included all types for a reduced overall price. Currently it is the same price for each one - so multiple discounts would be good or say 60 all in?? I would have certainly taken all of them if there was a bundle discount. 3. It would also be nice if the app worked on the iPhone too without having to buy the iPhone specific versions. Other than those niggles it is a great and useful app. ### 1/5 — Stopped working, No support! *2014-11-23* It worked for a while on my iPad 2, started having problems when I updated to ios8. Screen locks with bizarre COG value, renders Ap unusable. I deleted and started over with identical results. No response from several emails or facebook post. ### 5/5 — Great Robinson app! *2013-10-18* This app is super helpful and great for pilots learning or instructing in Robinson Helicopters! Only thing is, on the next update: they should have a bladder tanks choice in case a person is flying a R44 with bladder tanks or no bladder tanks because a lot of R44's are starting to go more towards bladder tanks for safety! This will change CG slightly and is needed for such a great app. Bladder tanks choice please! ### 4/5 — R44 performance pad *2012-10-31, version 2* Very good app, very clever, simple and intuitive. Instant calculation and clever way to illustrate the effects of temperature, altitude and pressure to the performances ### 5/5 — Awesome app *2012-10-18* I give this 5 stars because it is so easy to use, and when you write the author he responds immediately with an answer to your question. I only suggest two things. 1. Allow user to change the lateral arm, every helicopter is different 2. Allow user to store helicopters into the system for quick and easy reference. Other than that the app has been great so far! ## Frequently asked questions about R44 Raven II ### What aircraft is R44 Raven II designed for? R44 Raven II is specifically designed for the Robinson R44 Raven I / Astro helicopter. It contains all necessary flight and performance data for this particular model. ### Can I save multiple helicopter profiles in R44 Raven II? Yes, you can load and save up to 10 helicopters directly within the app. For unlimited helicopter storage, you can connect to the Fleet Control online database. ### What performance calculations does R44 Raven II offer? R44 Raven II calculates critical performance data including Out of Ground Effect (OGE) ceiling, In Ground Effect (IGE) ceiling, Density Altitude, Maximum Continuous Power (MCP), 5-minute take-off power, and Never Exceed Speed (Vne). ### How does R44 Raven II help with 'what if' scenarios? The app features convenient sliders on its Weight and Balance page, allowing students and flight instructors to quickly change values and experiment with different scenarios in real-time. ### Does R44 Raven II support different units of measurement? Yes, R44 Raven II supports unit conversions between US gallons/lbs and Kg/Liter, making it adaptable for users worldwide. ### What is the price of R44 Raven II? R44 Raven II is a paid application priced at $29.99. This one-time purchase provides access to all its features. ### How often is R44 Raven II updated? The latest version of R44 Raven II is 6.8, last updated on April 24, 2026. This indicates a history of updates, though specific frequency is not detailed. ### Does R44 Raven II have ads? No, R44 Raven II does not contain advertisements. As a paid application, it offers an ad-free experience for its users. ## Version history (last 5 releases) ### 6.9 — 2026-06-29 Improved density alt computation. General adaptions to latest iOS ### 6.8 — 2026-04-24 general bug fixes ### 6.7 — 2026-03-14 General bug fixes, improved Vne computation ### 6.6 — 2023-12-13 Bug fix: Lateral moment computes automatically when changing units ### 6.5 — 2021-10-26 Added automatic conversion from decimal to point. ## Apps similar to R44 Raven II | App | Rating | Price | Category | | --- | --- | --- | --- | | [HelicopterSchool](https://appshunter.io/ios/app/helicopterschool/id6447078178) | — | Free | Education | | [Garmin TXi Trainer](https://appshunter.io/ios/app/garmin-txi-trainer/id1204320570) | 2.2 (5) | Free | Education | | [Helicopter Pilot Checkride](https://appshunter.io/ios/app/helicopter-pilot-checkride/id731640367) | 2.6 (5) | $9.99 | Education | | [Prepware CFI](https://appshunter.io/ios/app/prepware-cfi/id338889937) | 2.5 (32) | $9.99 | Education | | [iSafety](https://appshunter.io/ios/app/isafety/id380233909) | 3.5 (15) | Free | Education | | [AR Helicopter Training](https://appshunter.io/ios/app/ar-helicopter-training/id6446599428) | 4.5 (11) | Free | Education | ## More apps by Gyronimo, LLC - [R44 Raven](https://appshunter.io/ios/app/r44-raven/id549114077) - [R22](https://appshunter.io/ios/app/r22/id552373715) - [R44 Pad XS](https://appshunter.io/ios/app/r44-pad-xs/id561929569) - [C172S Pad](https://appshunter.io/ios/app/c172s-pad/id574791356) - [E6B Pro Pad](https://appshunter.io/ios/app/e6b-pro-pad/id586546393) All apps by Gyronimo, LLC: https://appshunter.io/developer/536898885 --- *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.*