3 ms·

That seems like it would work better actually, especially for long distances.

• JoeAltmaier 12y ago
  But fuel quickly becomes an obstacle - double the distance - double the weight in fuel?
  • GenerocUsername 12y ago
    Looked like battery packs to me. Basically just high powered fans pushing you forward, not true jet-engines or rockets or anything. That said, adding distance would require more batteries, and that would add weight, but I would bet that the batteries are 1/10 the total weight with all the metal-housing and motors involved
    • JoeAltmaier 12y ago
      Batteries are about the least energy-per-kilo way of storing it - increasing battery energy would cost the very most in weight you could imagine (except perhaps a windup spring) Liquid fuels (gas/alcohol) are very efficient. Metal-air batteries may beat liquid fuels for ergs/kilo?