andrewbontrager
Active Member
Well, here I am again to entertain y'all with another of those old patents I'm so good at digging up. It describes a new lift device which I hope can have a beneficial effect in aircraft.
Vertical lift device - Google Patent Search
Here again, I'm needing your help to describe the device and the principles under which it operates. It appears, from the reading, that the air is made to produce lift twice.
Vertical lift device - Google Patent Search
Here again, I'm needing your help to describe the device and the principles under which it operates. It appears, from the reading, that the air is made to produce lift twice.