Boeing begins conversion of MD-90 jet into NASA's X-66 experimental aircraft
Boeing has begun the conversion of an old MD-90 commercial jet into the X-66 technology demonstration aircraft, a partnership with NASA.
The X-66 will be used to validate the Transonic Truss-Braced Wings concept, which aims to offer great fuel efficiency.
According to Boeing, the MD-90 with registration N931TB had its engines removed, which should also happen soon with the original wings, which will be replaced by the new concept.
Additionally, the company raised and supported the aircraft, to simulate the conditions that will be encountered during the conversion.
A 3D laser scanning was done around the structure, information that will be used in 3D modeling software that will overlay the new X-66 components on the MD-90, allowing for greater precision.
The X-66 Sustainable Flight Demonstrator (SFD) is expected to fly for the first time in 2028 and the plan is that the ultra-thin wings, supported by struts, can prove a major reduction in fuel consumption and emissions.
Boeing has already anticipated that the future 737 replacement could use the TTBW wing concept.
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