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L/D Vario 2.0.22

12.6 MB / 10+ Downloads / Rating 4.5 - 11 reviews


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L/D Vario, developed and published by PFM Technologies LLC, has released its latest version, 2.0.22, on 2015-10-21. This app falls under the Tools category on the Google Play Store and has achieved over 1000 installs. It currently holds an overall rating of 4.5, based on 11 reviews.

L/D Vario APK available on this page is compatible with all Android devices that meet the required specifications (Android 4.1+). It can also be installed on PC and Mac using an Android emulator such as Bluestacks, LDPlayer, and others.

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App Screenshot

App Screenshot

App Details

Package name: com.PFM.LDVario

Updated: 9 years ago

Developer Name: PFM Technologies LLC

Category: Tools

New features: Show more

App Permissions: Show more

Installation Instructions

This article outlines two straightforward methods for installing L/D Vario on PC Windows and Mac.

Using BlueStacks

  1. Download the APK/XAPK file from this page.
  2. Install BlueStacks by visiting http://bluestacks.com.
  3. Open the APK/XAPK file by double-clicking it. This action will launch BlueStacks and begin the application's installation. If the APK file does not automatically open with BlueStacks, right-click on it and select 'Open with...', then navigate to BlueStacks. Alternatively, you can drag-and-drop the APK file onto the BlueStacks home screen.
  4. Wait a few seconds for the installation to complete. Once done, the installed app will appear on the BlueStacks home screen. Click its icon to start using the application.

Using LDPlayer

  1. Download and install LDPlayer from https://www.ldplayer.net.
  2. Drag the APK/XAPK file directly into LDPlayer.

If you have any questions, please don't hesitate to contact us.

App Rating

4.5
Total 11 reviews

Previous Versions

L/D Vario 2.0.22
2015-10-21 / 12.6 MB / Android 4.1+

About this app

L/D Vario is an app for gliding airsports such as wingsuit flying, tracking, canopy piloting, paragliding, etc. It is a complete flight instrument, measuring the most important aerodynamic parameters of the gliding flight: lift-to-drag ratio (L/D), air glide ratio (GR), current horizontal and vertical airspeeds, and sustained horizontal and vertical speeds normalized to sea level (a.k.a. the polar curve). It uses the accelerometer and barometer (or GPS) in your device and solves Wingsuit Equations in real time to measure flight parameters and provide instant visual and audio feedback.

Unlike GPS that measures ground glide ratio (which is distorted by wind and dynamic maneuvers such as dives and plane outs), L/D Vario measures true, instant L/D — your aerodynamic finesse — independent of wind and dynamic distortions, so you can maximize your L/D much faster and more reliably. Also, it calculates the glide ratio relative to the air, not to the ground, since it uses the altitude from the barometer (or GPS) which is not distorted by the wind, unlike the GPS position/groundspeed. Advanced multiple-layer algorithms are used to calculate smooth descent rate and vertical acceleration from noisy altitude data. All these flight parameters - L/D, GR, sustained and current airspeeds - help you understand various flight modes and learn quickly how to fly better.

To use the app in flight, your device needs to be mounted on a vane that is positioned in undisturbed air stream (away from the body and wing at least 2-3 feet) and is precisely aligned with the relative wind at all times, so that its Y-axis (from screen bottom to top) is parallel to the relative wind, and X-axis (left-right) is parallel to the ground. You can then use your Bluetooth headphones to listen to the feedback tone and voice.

Use of devices with high-speed barometric sensors (60Hz or faster) is highly recommended for the feedback lag not to exceed 0.2s. Some known devices with high-speed barometers include: phones - Google Nexus 4 and Sony Z3 Duos (30Hz), smartwatches - LG G Watch R (90Hz), Huawei Watch (20Hz), Nixon the Mission (165Hz).

New features

- hotfix: fixes a crash on start for some Samsung phones running Android 4.4 that occurred due to OS not able to handle a "theme" tag in the app manifest file

App Permissions

Allows an app to access precise location.