» FURTHER INFORMATION «

On this page, we provide you with some useful information on how to launch a balloon yourself.


Here you can download a short checklist for your balloon launch that will make things a little easier for your first time:

Download ChecklisteDownload the checklist for launch preparation


Land distribution in Germany
Here we show you the land distribution for Germany. As you can see, the risk of landing in a city or on water is very low. Up until now and without exception, all of our flights landed in fields, meadows or in woods.

Land distribution in Germany


Length of special cords
Ideal length of special cords
The ideal length of the special cords between the weather balloon and the parachute is 5 meters and 10 meters between the parachute and the polystyrene probe. These lengths increase the probability of easy recovery if the probe should land in a tree. We do not recommend using longer cords since this can have an effect on the flight stability.


Predicting the flight path
With this practical tool, it is possible to make an accurate prediction of the flight path on the day of the launch. You only need to enter your launch coordinates in the system an the flight path is calculated after taking the current weather conditions into consideration. This makes it possible for you to drive in the direction of your probe after launching and you then don’t need to wait for the exact landing coordinates from the GPS tracker.


How much helium do I need for my weather balloon?

For this, you need to weigh the entire construction including all of the equipments and the weather balloon. You then enter the overall weight of the construction (payload) and the weight of the balloon into the fields. Our helium calculator will then state the amount of helium required for filling the weather balloon! The calculated quantity enables your probe to climb at a speed of approximately 4-6 meters per second!

Attention: please be aware that some helium can escape during filling and the therefore it is necessary to automatically increase the amount of helium required!

Helium calculator
Weight of balloon (in g):
Weight of payload (in g):
Bottle size
The formula for calculating the helium is as follows:
Helium quantity = weight of payload + weight of the balloon + positive climb speed
From experience, 1/2 of the payload should be entered for "positive climb speed". The result of the calculation is then the quantity of helium in liters.