29th june : ultrahab is complete apart from UV filter and batteries

28th june : ultrahab is now nearing completion

The current UK record is NOVA1 with 32Km, but it should be possible to get to 40km with rubber balloons, this is the aim of Ultrahab. To reach such a high altitude, larger balloons, a light payload (no phone, only radio), and low ascent rate is needed. This increases the risk of ending up in the sea, so multistaging (using 2 balloons at launch) is needed for a fast ascent through the troposphere.

ultracode This is at the “alpha test” stage, it needs more extensive testing and more readable interface.