Cart is empty
View Cart
Subtotal: 0,00 €

Media Image
OpenVario

The Open Source glide computer with XCSoar. It has a sunlight readable navigation display with user friendly input and optional Sensorboard, for an integrated variometer.

Read more about OpenVario
Media Image
Input devices

SteFly offers ergonomic and intuitive input devices for XCSoar. Have a look at the remote sticks wrapped with leather and the Rotary Module, which fits to the 5,7″ and 7″ OpenVario.

Read more about Input Devices
Media Image
Blog

Blog of Stefan Langer, who is German Champion (Junior / Club Class) and won bronze at the Junior Worlds in 2017. He has also a passion for filmmaking.

Read more on my Blog

OpenVario

OpenVario is a glide computer for XCSoar. Both are Open Source projects developed by glider enthusiasts and engineers in their spare time.

SteFly offers widely prefabricated 7″ and 5,7″ kits with perfectly sunlight readable displays. The kit includes all parts for the OpenVario and everything is already soldered (except the D-Sub connector cable). In 1 to 2 hours, the glide computer is ready for use.

  • 5,7" or 7" display
  • Sunlight readable screen
  • XCSoar: Excellent navigation software for competition and free flight
  • Linux operating system
  • Low power consumption
  • IGC standard RJ45 pinout for serial devices
  • Easy file transfer with USB stick
  • Input with remote stick or rotary module
  • Sensorboard with latest generation sensors
Alt Text

Blog

 Featured Image

Custom User Input options for SteFly™ Rotary Module

  • Posted by Stefan
  • On 28. November 2019
One huge benefit of the open-source project is, that you are able to customize some features to your needs. The user input behaviour is one thing, which you can change even with only a little bit of programming knowledge. In gerneral there are two different files, which have effect to the user input in XCSoar […]
Read More
Featured Image

How to connect external devices to the OpenVario

  • Posted by Stefan
  • On 29. Januar 2019
The OpenVario has no built in GPS reciever, so it is necessary to connect – at least one – external device, which provides NMEA GPS data in RS232 level. In Europe, the Flarm collision avoidance system is widely-used, which can send GPS data and also traffic information to the OpenVario. Also the connection to the […]
Read More
Featured Image

OpenVario kit improvements – Assembly instructions updated

  • Posted by Stefan
  • On 14. März 2018
During the last year, we improved some parts on the OpenVario kit. Special thanks to our customers for the valuable feedback and ideas to enhance the OpenVario! We try to implement most of the ideas from you. All feedback is welcome! To make it easier to assemble the OpenVario kits, I updated the assembly instructions […]
Read More
Featured Image

Junior World Gliding Championships 2017 – Lithuania

  • Posted by Stefan
  • On 15. November 2017
My sporting highlight of this year were the Junior World Gliding Championships 2017 in Pociunai (Lithuania). The video below gives a short summery of the competition itself, but it was nearly one year of hard work in preparation and training. At the end it was an awesome experience and an excellent result for our Team […]
Read More
Featured Image

FLYING INTO A MINI TORNADO | VLOG 15

  • Posted by Stefan
  • On 7. September 2017
My first flight after the Junior Worlds and German Nationals. It should be a chill flight, but at the end it was one of my most exciting and eventful flights of the year. The mini tornado had vertical gusts with more than 12 m/s and at the beginning my glider was nearly turned into an […]
Read More
Featured Image

FAILED 818 KM FAI TURNED INTO SIGHTSEEING & FUN | VLOG 10

  • Posted by Stefan
  • On 14. Juni 2017
At the 10th of June, the weather forecast was very good and I tried a 818 km FAI triangle flight. At the first leg, I had some problems finding good thermals and I nearly outlanded. But luckily I found a lift in 170m AGL and decided to abort the task. On the way back home […]
Read More
Featured Image

How to update the Remote Stick | Arduino | OpenVario

  • Posted by Stefan
  • On 7. Juni 2017
In this short tutorial, I explane how to upload a new Arduino sketch to the OpenVario remote stick. 1. Download and install Arduino IDE: https://www.arduino.cc/ 2. Download and unzip the “bounce” library: http://stefly.aero/wp-content/uploads/2017/05/Bounce.zip 3. Download and unzip the stick remote sketch file (for SteFly remote stick layout with joystick and 3 buttons + PTT): http://stefly.aero/wp-content/uploads/2017/05/Stick_Remote_Control_vs.zip
Read More
Featured Image

GERMAN CLUB CLASS RECORD?! GLIDING | 768 KM | VLOG 8

  • Posted by Stefan
  • On 7. Juni 2017
On Thursday the 1st of June I declared my second-biggest flight with 755 km flown with a Std. Libelle. This flight should be a German club class record over 3 declared waypoints (768 km). The weather conditions were moderate at the first half of the flight, but improved radical short before the second waypoint. With […]
Read More
Featured Image

Build your own SteFly Remote Stick | Tutorial

  • Posted by Stefan
  • On 7. Juni 2017
Some month ago, I published a YouTube tutorial how to build a remote stick for your OpenVario glide computer. It´s an ergonomic remote stick designed for 3D printing, leather wraping and at the end you should glue in an aluminium insert. SteFly remote stick (ABS): https://www.thingiverse.com/thing:1818509 Insert for 19 mm diameter (aluminium): http://www.thingiverse.com/thing:1595630 Insert for […]
Read More
Featured Image

Nothing is impossible | 717 km declared triangle

  • Posted by Stefan
  • On 7. Juni 2017
On Tuesday the 16th of May I flew my first DMSt (German decentral championships) flight for this season. The weather forecast was good, but at the end of the day it was very hard to finish the task. Half an hour circling in a 0,3 m/s climb was the only possiblity to get back to […]
Read More
Featured Image

First competition with OpenVario | PribinaCup 2017

  • Posted by Stefan
  • On 12. Mai 2017
Goood Afternooon guys! My intention for 2017 was to get my blog up to speed and post more pictures & tutorials but its taken me a while to regain full power after the first batch production of 40 OpenVario kits so that is why its taken a while to get on it! But now after […]
Read More
Featured Image

Playing with the forces of nature in Namibia

  • Posted by Stefan
  • On 12. Dezember 2016
It all began with the Bitterwasser Cup price, which I won for six great OLC flights in 2014 and 2015. This price included a trip to the Bitterwasser Lodge and Flying Centre last year between Christmas and New Year, where I got some inspiration about flying in Namibia. But at this trip I had bad […]
Read More
Featured Image

SteFly at Deutscher Segelfliegertag

  • Posted by Stefan
  • On 17. November 2016
It was our first public appearence at the German gliding day at the 29th of October in Berlin. There was a huge afflux of people on our booth and we had interesting discussions and feedback of the OpenVario project. Some people asked how SteFly is involved in the OpenVario project. The following draft should visualise […]
Read More
Featured Image

Stefan Langer is German Junior Champion!

  • Posted by Stefan
  • On 2. September 2016
With two day victories, Stefan Langer won after seven scoring days with 157 points lead. Next year he will participate in the Junior World Gliding Chmpionship (JWGC) in Lithuania.
Read More
Featured Image

DIFFICULT BEGINNING (DMJ MARPINGEN 16) | VLOG 4

  • Posted by Stefan
  • On 3. August 2016
On the first competition day at the German Junior Nationals in Marpingen we had a 302 km racing task (club class). The weather was well forcasted, but after crossing the start line, many rainshowers developed and made the flight difficult. Stefan Langer was glad to finish the task with the 7th place, only 24 points […]
Read More
Featured Image

BAD LUCK (LILIENTHAL GLIDE 16) | VLOG 3

  • Posted by Stefan
  • On 2. August 2016
  Until the last competition day Stefan Langer was 2nd in the overall scoring but he landed out at the last day. He placed 6th overall and should be qualified for the German nationals 2016. Luesse Glide 16 was a perfectly organized competition with awesome weather. Many thanks to the organisers, my family and Philipp. […]
Read More
Featured Image

THE FIRST DAY (LUESSE GLIDE 16) | VLOG 1

  • Posted by Stefan
  • On 19. Juli 2016
    Some drone footage of the departure on Sunday and from the first possible competition day at Lilienthal Glide 2016. Unfortunately the border of the good weather was too far away and the day was neutralised in all classes.
Read More
Featured Image

Bitterwasser prize 2014 – 2015

  • Posted by Stefan
  • On 26. Juni 2016
Since 2014 there is a new soaring competition for all juniors in Europe, which attrackts with an awesome prize: 8 days habitation in Bitterwasser (Namibia), including flights, glider, board and lodge for free! The price is sponsored by Bitterwasser Lodge & Flying Centre.   Bitterwasser Cup takes two years (first time 2014 and 2015) and […]
Read More
Featured Image

Athlete of the year 2015 in Donauwörth

  • Posted by Stefan
  • On 15. März 2016
Stefan Langer was choosen as athlete of the year 2015 in Donauwörth. He made excellent flights with his own Std. Libelle “SL” and the sponsored Nimbus 4 “EP”. One of his greatest flight was at the 18th of April with the open class glider “EP”, when he flew 1159 km (1013 km FAI) in only […]
Read More

Any questions?

Contact us