Although it is not in the public eye, the aircraft itself has to be completed in addition to the propulsion tests. Prototype construction is in full swing. In order to be able to keep to our schedule, we work with full physical effort. The outer wings of the APUS i-5 are currently being built. The wing will have a span of over 26 m. The test preparations for the strength test of the spars are currently underway. Most parts are designed and built in-house to be largely independent of long delivery times!