To launch a high altitude balloon to the stratosphere, a number of things must be considered: how much helium is required? Is this kind of flight really allowed? Where do I have to go to apply for the flight into the stratosphere? Do I have the required equipment?

It is the small things that can either condemn this project to failure or make it an unforgettable success. That is why we want to share our knowledge in some tutorials.

Hand-made payload

Balloon inflation tube

Temperature/Humidity data-logger