FAQ

Currently we support all Leica DISTO™ laser distance measurement devices with Bluetooth® Low Energy (BLE) since they were easy to integrate and work well out of the box. If you own another laser device, you can test here if connection is working. If this is not the case, please contact us and we will see what we can do.

On some devices of the DISTO series, some features (such as automatic reactivation of the laser after measuring) are not available.
Altough the D510 is working in general, it is the only model of which we know that these features do not work.

Whilst running in Chrome or Edge we-measure.io works well on personal computers with at least Windows 10, Linux (e.g. Mint 21.x) and macOS, as well as modern Android phones and tablets.

Safari and Firefox on the other hand do not support Web Bluetooth API yet.

For an overview of browsers with Web Bluetooth API available, just have a look at this table (green is good).

Apple restricts Bluetooth access on iOS devices for at least Google Chrome. Therefore you have to use e.g. Bluefy – Web BLE Browser.

On macOS and Linux, it might be necessary to adjust some system and/or browser settings. (e.g. enable Experimental Web Platform features via chrome://flags in Chrome) 

For the laser connection we-measure.io relies on the experimental Web Bluetooth API and therefore we can't make any effort to support old Operating Systems or Browsers.

Work yourself through the following list:

• Go here, follow instructions and see if you get a bluetooth: available and summary: ready to go in the connect dialog
• Laser is switched on and bluetooth is enabled (may be indicated by  Bluetooth symbol on the screen)
• Computer/Tablet/Mobile bluetooth is enabled
• Laser is not connected to any device yet
• Ensure that no other application is running that uses or connects to your laser device (e.g. Leica Disto transfer)
• Try removing the pairing status in your OS's Bluetooth-Manager

We could not find an affordable Bosch laser that supports Bluetooth® Low Energy (BLE) which is the only protocol supported by the Web Bluetooth API.
The Leica DISTO D1 on the other hand was affordable and easy to integrate. Therefore we did not try any further with devices by Bosch.
For those who own an unsupported laser, readings also can be keyed in manually or be imported from XLSX.
If you happen to own a BLE Ready laser that is not yet supported, you can send it to us and we will see what we can do.

The nominal line length is given from the carabiner all the way up to the lower surface of your wing (including the fabric loops where the lines are attached).

We estimate the lenght change for all loops when we create a new linemap for a wing based on the line data we can find.

Once measurements with loop changes are entered into we-measure.io by each user, an analysis is running in the background. This shows us the deviations of our estimate to the actually measured changes. Based on that, the estimates are corrected. The more data we get, the more we can improve the simulation. This is provided, that changes everybody has made are documented, no values manually changed after measurements and the defined workflow is followed.

Although the simulation is constantly improving, it will always be an estimate. Re-measuring the lines after changing loops is strongly recommended to see the real effect of trim changes. 

The sides of the wing in we-measure.io are named according to your flying direction.

The left riser in flight will be also the left riser during your measurement. Since, while measuring the wing, you will normally stand behind the canopy, this is the logical direction.

In the wing view, the left side of the screen corresponds to the left side of the wing in flight. (Imagine, you're watching the wing from the upper surface).

We give some hints on what loops might be good to use for certain deviations in the measurement, but will not take any liability if it doesnt't fly well after that. 

Trimming a paragilder requires deep knowledge about how the geometry of the wing changes.
If you find out that your paraglider is out of trim based on your measurements, we recommend to then hand it over to a professional check center (e.g. manufacturer of your wing or workshops recommended by the manufacturer) to get it properly done.

We are continuousely updating the data base with additional paraglider models, but it is well possible, that yours in your size is not available yet. If you would like us to add it, please contact us through the contact form.

We designed the system so that almost every linemap we stumbled over so far, can be added and gives reliable and understandable results and simulation.
Therefore, creating line maps and adding length values is still a bit complicated so that we do not have an End-User-Solution for that yet.

To put the data in correctly requires a certain way of thinking.
We have no doubt that some of you can wrap their heads around this, but to open up the tools for maintaining linemaps and still keeping a high level of quality, we have to add a community driven review process first.
Ideas how to create such process are already there, but until now the overall effort to put in new paraglider models is not that bad, so that we are happy to add it for you.

You can either build it yourself, which is not so difficult to do.

Andre Bandarra for instance gives a very detailled descirption of how it is done.

You also can check this tutorial by Wolkenkratzer (German).

Or you can buy it from some suppliers online.

Some of them are e.g. Paraglider Line Measurement Tool by Mountain Ride Aviation, Rail Check from High Adventure, or the Travel Light Measuring Paragliding Tool from Christian Deacu. 

A paraglider check normally involves the following

• measurement and trimming of lines
• measurement of air permeability, especially on the upper surface
• measurement of tear strenght on lines
• visual check for damages and if necessary repair

This depends largely on the paraglider model, the line materials used, the weather and storage conditions it is exposed to and - last but not least - the recommendation from manufacturers.

As far as we know, when having a new paraglider or new lineset on a wing, after 20-40hrs, a measurement and re-trim is necessary. Then each 100 hrs or whenever you have the feeling, the wing is not flying well anymore, it should be measured and confirmed to be within tolerances. 

For details and specific information on your specific paraglider model, check in the user manual or directly with the manufacturer.

The Angle of Attack (AoA) describes the angle of the wing in reference to the airflow, and therewith changes constantly in flight with each pitch movement.

The Angle of Incidence (AoI), in contrast, describes the structural angle of the wing as part of the basic geometric setting. A detailled description can be found on wikipedia.

This is for the sake of science.
We believe in the power of statistics. When measuring your wing on a regular basis, the hours on your wing and lineset will provide information about how the wing changes over time and over usage. 
Of course, humidity, dust, sun etc. plays also a role on trim changes. But we assume that with enough data, it should be possible to see, which line concepts work better and which worse. 
The production date, first flight date and serial number also can give an indication about the influence of age, storage, production quality, etc.