What's the efficiency for turning jet fuel into mechanical work? I'd suspect the efficiency is somewhere around 45% for liquid fuel where it's nearly 100% for electric. So you're really trying to reach the equivalent of 5500 Wh/kg.
I got the number from wikipedia. Following the references, the number came from a BP datasheet about Jet A-1, where it is listed on a typical properties table, and the number is the net specific energy, which means it accounts for the inefficiency of the engines. Or at least that's my assumption.
What's the efficiency for turning jet fuel into mechanical work? I'd suspect the efficiency is somewhere around 45% for liquid fuel where it's nearly 100% for electric. So you're really trying to reach the equivalent of 5500 Wh/kg.
I got the number from wikipedia. Following the references, the number came from a BP datasheet about Jet A-1, where it is listed on a typical properties table, and the number is the net specific energy, which means it accounts for the inefficiency of the engines. Or at least that's my assumption.