> And again, there's nobody in that: with a passenger it's going to work maybe three times as hard, depending on how light and dronelike it is empty. How much

> And again, there's nobody in that: with a passenger it's going to work maybe three times as hard, depending on how light and dronelike it is empty. How much do you think it masses empty? 30kg? The Gossamer Albatross was 32kg! It's got to be at least 100kg empty.