Speaking of the 50s and 60s, were you promised a jet pack?

Here it is!

* “Range 31.5 miles (at max speed of 63 mph as required by FAA part 103).”

* “For the recreational market they will use premium gasoline, the same as an automobile.”

* “Martin Aircraft has built several prototypes so we have a good idea how much they cost to manufacture. Depending on production volume, the initial cost will be about the same as a high-end motorcycle or car. As volume increases this will drop to be similar to a mid-range motorcycle or car.”