# Ranger Trainer — Instrument navigation trainer

> Instrument navigation trainer for TH-57C Sea Ranger helicopter. (iPhone/iPad app by Matthew Krivohlavy.)

- Source: https://appshunter.io/ios/app/ranger-trainer/id1441892554 (this page in markdown: same URL + `.md`)
- Developer: [Matthew Krivohlavy](https://appshunter.io/developer/1421640676)
- Category: Education, Games, Simulation
- Price: Free with in-app purchases
- Rating: 4.60/5 from 19 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 20 MB
- Languages: American English
- Released: 2018-11-29
- Data updated: 2026-06-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/ranger-trainer/id1441892554/reviews.md

## What is Ranger Trainer?

Get your head in the clouds with this instrument trainer for the TH-57C Sea Ranger. Why sit behind a computer screen or fight for simulator time when you can have the next best thing with this app!

Free features include navigation aid radial interception and non-directional beacon tracking information, and standard and half-standard rate turns at a set airspeed.

Full version features include a variety of airspeeds, accurate wind modeling of up to 140 knots with ground track references, selectable navigation needles and sources, selectable NAVAID with/without DME, ability to fail directional gyro for partial-panel practice, and multiple display and orientation options.

*** This application is not endorsed by the Department of Defense ***

## Key features

- Instrument navigation training
- Radial interception
- NDB tracking
- Rate turns
- Wind modeling
- Partial-panel practice

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Full Version | $1.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/ranger-trainer/id1441892554/reviews.md

### 1/5 — RMI needles still don’t work while Failed card

*2019-06-30, version 1.3*

RMI needles should still work with a directional gyro failure. Nav needle should still represent the radial you are on while failed card. ADF needle should still show bearing to the station in relation to the aircraft while failed card. Neither work. The digital radial readout still works while failed card so Tacan failed card is possible to practice but difficult without the needle. ADF needle is just frozen so impossible to practice failed card here. 

Seeing as how I purchased the app primarily for this feature, kinda bummed.

### 1/5 — Failed Card

*2019-05-28, version 1.3*

Faild card needs some work, needle movement does not adjust to reality

## Frequently asked questions about Ranger Trainer

### What is Ranger Trainer?

Ranger Trainer is an instrument navigation trainer designed for the TH-57C Sea Ranger helicopter. It helps users practice essential navigation skills in a simulated environment.

### What free features does Ranger Trainer offer?

The free version includes navigation aid radial interception, non-directional beacon tracking, and standard/half-standard rate turns at a set airspeed.

### What advanced features are available in the full version of Ranger Trainer?

The full version provides a variety of airspeeds, accurate wind modeling up to 140 knots with ground track references, selectable navigation needles and sources, and the ability to practice partial-panel scenarios by failing the directional gyro.

### Does Ranger Trainer have ads?

No, Ranger Trainer does not contain advertisements.

### What devices support Ranger Trainer?

Ranger Trainer is supported on iPhone, iPad, and iPod.

### How often is Ranger Trainer updated?

The latest version, 1.4.4, was released on July 29, 2019. The app was initially released on November 29, 2018.

### What is the age rating for Ranger Trainer?

Ranger Trainer has an age rating of 4+.

### What is the user rating for Ranger Trainer?

Ranger Trainer has a high rating of 4.6 stars based on 19 user ratings.

## Version history (last 5 releases)

### 1.4.4 — 2019-07-29

-Made changes to the wet compass dip errors; compass will now correctly lag on turns from a northerly heading, and lead on turns from a southerly heading
-Made slight changes on course reversals where the aircraft will rollout out from previous heading before beginning angle of bank in opposite direction
-Fixed a few bugs with overall aircraft control and display manipulation
-Changed the lite version to display the right seat view as the default

### 1.4 — 2019-07-07

-RMI needles now move correctly when the directional gyro has been failed
-Swapped NAV1 and NAV2 functionality to mimic GTN-650 aircraft configuration
-Fixed a bug that prevented the course deflection knob or heading bug knob from making incremental changes via quick taps
-Fixed an issue that wouldn't delay the gyro failure timer if pausing the simulation or accessing the MFD

### 1.3 — 2019-02-07

-Fixed a bug that wouldn't stop aircraft movement when the MFD was accessed

### 1.2 — 2019-01-02

-Added a magnetic 'wet compass' to the display
-Added the ability to fail the directional gyro on the MFD page
-Fixed display issue that was placing the help file under the navigation bar, limiting readability on the top few lines of the first page
-Modified information in the description that the product is not endorsed by the Department of Defense

### 1.1 — 2018-11-29

-Fixed several minor display issues
-Added capability to adjust course incrementally when the simulator is running by quickly tapping the half-standard rate buttons
-Added wind barb information to the North Up arrow [full version feature]

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## More apps by Matthew Krivohlavy

- [Texan Trainer](https://appshunter.io/ios/app/texan-trainer/id1421640677)
- [Texan Trainer  Lite](https://appshunter.io/ios/app/texan-trainer-lite/id1433999380)

All apps by Matthew Krivohlavy: https://appshunter.io/developer/1421640676

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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.*