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Electric Plane Adoption Faces an Uphill Battle Thanks to Physics
n all-electric passenger plane took its first flight this fall, potentially heralding the entry of air travel into the electric age. Or does it? The Eviation Aircraft Alice you see above only cruised at 3,500 feet, traveling at 260 knots (or 300 miles per hour) for eight minutes. (jalopnik.com) 기타...Sort type: [Top] [Newest]
One thing the article fails to mention is that a large part of 160,000kg of jet fuel burns off as the flight progresses, but the battery weight has to be carried for the entire flight.
I guess you do a battery dump during the flight rather than a fuel dump. /sarc
Battery-powered airplanes need to be designed and certified so that max landing weight equals max takeoff weight. That brings weight penalties from having to carry the full battery weight and from the need for beefier landing gear and associated structure, plus removes the option of arriving onto a shorter runway at light weight with most fuel burned off. Everything’s a trade off….
For the foreseeable future, biofuels are the way to go for large long-range airliners if the goal is to reduce fossil-fuel carbon dioxide production.
For the foreseeable future, biofuels are the way to go for large long-range airliners if the goal is to reduce fossil-fuel carbon dioxide production.
And also understanding where batteries make sense and where they don't. Smaller all-electric airplanes are closer to commercially viable in the near term, with shorter missions and lighter payloads. SAF makes more sense for long haulers, and likely will for a long time to come. Like you're getting at, engineering is almost never one answer for all questions.
Bio fuels require land converted to crops to make the biofuel. The world just passed a population of 8 billion people, the population will continue to rise and those people need to eat so we will need more land for food production not less.
Soylent Green, and no problem anymore
Soylent Green, no problem anymore
At what cost to society?