prototype was expected in 2013 with re-certification to follow. Hsueh indicated that for now production is planned for the US, but costs may require moving the assembly line to China or even a lower cost country such as Mexico. By 2013 the Triton website had been taken down and the URL sold. It is likely that the company has gone out of business. A500 payload issues In evaluation flights conducted in 2007 the A500 was noted as being over the projected empty weight by or 30%. The initial design empty weight publicized in 2003 was , while the actual empty weight of the serial number 7 A500 was . Initial gross weight was to be , which was increased to . This resulted in a change of useful load from a forecast . With the fuel tanks full, the available payload for crew, passengers and baggage is , down from a projected . This means that the A500 cannot carry full fuel and one standard weight adult male or female pilot. Adam Aircraft had intended to address the lack of useful load by demonstrating that the current of unusable fuel is actually . This would have increased the useful load by and allowed a full fuel crew weight of . Support and aircraft type club formation The five A500s in private service have run into problems obtaining parts and at least one was reported as grounded due to parts issues in August 2008. The aircraft owners organized an aircraft type club, the A500 Owners Association, with the goal of convincing the new owners of the design at that time, AAI Acquisitions to provide parts support for the existing aircraft. AAI's head of customer support, Jan D'Angelo, responded in August 2008, saying: Aircraft on display Wings Over the Rockies Air and Space Museum - M309 proof of concept design Specifications (A500) See also References External links Adam Aircraft website archives on Archive.org Triton Aerospace Wings Over the Rockies Air and Space Museum Adam Aircraft Industries aircraft Twin-engined push-pull aircraft Scaled Composites Twin-boom aircraft 2000s United States civil utility aircraft 2000s United States experimental aircraft Aircraft first flown in 2002