I couldn't tell you. It depends on the quality of construction, and the climate you fly it in. I have had machines up for years and they have been fine. They would have gone much, much longer without attention. The last couple years, the longest I have flown a machine in probably around 3 or 4 months. Then I just make a new / better one and just replace it. Its a never ending process. Im sure a lot of others will agree. :-)
