During this month we had two Amateur-Built Aircraft Certification Inspections by the NVAV-technician. The NVAV is the Dutch authority for guiding homebuilders during their build process and perform all necessary inspections to obtain an airworthiness certificate. During the same period it was time to start the engine for the first time. After the purging procedure we started our engine twice for a total of 70 minutes. We even performed a short taxi-attempt and the brakes proofed to be working fine. Next stop will be to determine the empty weight of AER.