Excuse me if I missed a post that discussed this, but what exactly are these two Boeing test flights going to test?
It's not two, three or more flight "tests". It's one single flight. What they hope to prove is anyone's guess, unless that is they take the kite somewhere over the mid-Pacific, say 330 minutes away from a suitable runway, and deliberately over-charge the battery to induce thermal runaway conditions. Somehow I don't that's going to happen though.