The Martin Aircraft Company, based in New Zealand, is now taking deposits for the consumer version of its single-person jet pack, which has been in development for more than 30 years. Over the years, the company has successfully flown several prototypes, but it has continued to refine the design in search of easy handling, stable flight characteristics, safety, and reliability.

The Martin Jetpack can fly for up to 30 minutes at about 35 mph and cruise at altitudes of up to 3,000 feet, thanks to a proprietar…