Video: Jetpacks soon to become a reality? The jet packs, which are made in Christchurch, New Zealand by the Martin Aircraft company, can climb up to one kilometre in the air and travel at speeds of 70 miles per hour. Performing manned test flights means the company are one step closer to creating jet packs, which they hope could be commercially available as early as next year. "For us it's a very important step because it moves it out of what I call a dream into something which I believe we're now in a position to commercialise and take forward very quickly," said Chief Executive Peter Coker. The price of your own personal flying machine is estimated at US$150,000-250,000, although Mr Coker said the cost was likely to come down over time.