Four groups — based at MIT, Boeing, GE, and Northrup Grumman — tackled NASA's challenge to
improve subsonic flight, in which the agency asked for aircraft designs that burn 70 percent less fuel and create less noise than existing planes.
The
Subsonic Ultra Green Aircraft Research (SUGAR) project identified hybrid technology as a clear winning concept for subsonic aircraft, as long as battery technology can be improved to make the planes commerciall
Subsonic Ultra Green Aircraft Research (SUGAR) project identified hybrid technology as a clear winning concept for
subsonic aircraft, as long as battery technology can be improved to make the planes commerciall
subsonic aircraft, as long as battery technology can be
improved to make the planes commercially viable