Eric Scott of Jet Pack International flew across Colorado’s Royal George using a standard hydrogen peroxide-fueled jet pack, breaking his own record by traveling 1,500 feet horizontally. This is only the beginning, according to a company official. The entire flight lasted about 20 seconds. The maximum flight for a hydrogen-peroxide pack is about 45 seconds, though one company in California has recently extended that to 75 seconds by mixing in a little kerosene. Scott Rhodes, chief operating officer with Go Fast Sports, a sister company of Jet Pack International, says they’re trying to break that barrier with a turbine jet-powered machine that lasts as long as 9 minutes in the air.

The turbine engines are much more fuel-efficient than the standard hydrogen peroxide jet pack, which is really a rocket because it does not use the oxygen in the surrounding air as additional fuel. Jet Pack International’s main model is called H2O2 (the chemical formula for hydrogen peroxide) and it has a flight time of only 33 seconds. Its competition, a jet pack from Tecnologia Aerospacial Mexicana of Mexico, lasts 30 seconds in air and it can be bought for $250,000. Unfortunately, Jet Pack International does not sell its models, but the turbine-powered machine, T-73, which runs on standard jet fuel, will be available in the near future for around $200,000, with extensive pilot training, an absolutely necessary experience.

Another company is also ready to sell personal flying machines. Martin Jetpack, based in New Zealand, makes a propeller-driven machine, not really a jet at all. Its maximum flight time is half an hour, at 60 mph, which is enough to get you to work, running on standard gasoline. However, you can only reserve such a machine, with a $10,000 deposit, though you’ll be paying $100,000 by the time it’s delivered. The price does not include the cost of mandatory pilot training. Furthermore, Thunderbolt Aerosystems, based in San Jose, is also selling a hydrogen-peroxide model now for $90,000. Another model, that will last 75 seconds in the air, will be available next summer for $98,000.