Not sure what the deleted post is referencing, but Google is using a fixed-wing design. To deliver the package, you tilt the entire drone up to do VTOL. At th

Not sure what the deleted post is referencing, but Google is using a fixed-wing design. To deliver the package, you tilt the entire drone up to do VTOL. At this point you can lower the package. In theory, it will work and have higher efficiency than a multicopter design. I'm not sure whether or not Google has had any success with it.