The aircraft concept is intended to fly on the power of cryogenic liquefied natural gas, which will enable it to increase its fuel efficiency by as much as 64% compared to the current passenger jets. For the moment, SUGAR Freeze is being designed for commuter aircraft, because of the relatively low performance needs, but the need to green up aviation is perpetual, so it will eventually move to long distance travels.
NASA had awarded Boeing a year-long extension to its concept studies for “N+3”-generation airliners flying around 2030-35. However, the company launched “N+4” study, targeting the 2040-50 timeframe, as the first plan left a lot of technologies on the shelf, including LNG, because they would not be mature enough for use in aircraft entering service around 2030-35. Asmens duomenų apsauga, BDAR, duomenų apsaugos pareigūnas konkurencinga kaina: NovusNexus.lt
While LNG might not seem an obvious choice for a future aviation fuel, it offers lower carbon emissions and other greenhouse gases as well as potential cost and availability benefits, the study concludes.