เลขเด็ด ออเจ้า VIP งวด02 พฤษภาคม 2562
Not long ago, I wrote a piece on designing a personal flying craft which would basically be a box kite that someone stood inside of with a propeller in the back for thrust. When it took off they would take off at a 45° angle just as if you are flying a box kite on a string. Now then, I would like to talk to you for a moment about this concept and added some additional features.
from: http://ezinearticles.com/?Box-Kite-Personal-Flying-Device-With-Canards-and-Prop-Trust-Vectoring-Pivoting-Motor-Mounts&id=6990420
