
Last week, news broke that Skyacht Aircraft, Inc. is developing the world’s first personal blimp, and would eventually it will be for sale. The prototype model is pictured above. I emailed the principal designer how much it cost them to build, and he said, “it was 1,000 hours of work to build and the materials cost was around $20,000. My guess is that both those numbers will change a fair bit before the descendants of the current design reach the marketplace.” I’ll bet they will – the materials cost will be greater and the time cost will decrease. I wouldn’t be surprised if we saw high-quality personal airships for sale by 2008 for $50,000 a pop. The main downside is the cruising speed – around 12 mph. From the site:
While some hot air airships exist today, these craft are extremely limited in their abilities. These limits arise because the envelopes (a.k.a. “gas bags”) of these ships consist only of fabric with no rigid structural members (i.e. They are “non-rigids”.) These designs rely solely upon internal air pressurization (the way a toy balloon does) to retain their shape. This lack of structural rigidity leads to both low airspeed and very limited steering.
So we need rigid-shell airships that have high speeds and extreme steering capability. Duly noted. Here are the specs on the personal blimp:
Length: 105 ft. (32 meters)
Diameter: 70 ft. (21 meters)
Seats: 2
Maximum Weight: 4,100 lbs (1,860 kg)
Cruise Speed: 12 mph (19 kph)
Propulsion Type: Gasoline
Lifting Gas: Hot Air
Size in Flight: 205,000 cubic feet
Size When Deflated/Folded: 1,500 cubic feet
Assuming the dual-seat cabin area takes up maybe 1,000 cubic feet, this gives us the general ratio of 200:1 between the size of the balloon and its payload.
This all reminds me: this gem, the Moller Skycar, can be yours by 2008 or 2009 at the latest for a deposit today of $10,000 and a total cost of $500,000:

The blurb from the site:
From your garage to your destination, the M400 Skycar can cruise comfortably at 275 MPH (maximum speed of 375 MPH) and achieve up to 20 miles per gallon on clean burning, ethanol fuel. No traffic, no red lights, no speeding tickets. Just quiet direct transportation from point A to point B in a fraction of the time. Three dimensional mobility in place of two dimensional immobility.
Sometimes stuff that sounds “too good to be true” is actually true. Test videos here. Obviously, what needs to be done is to combine the two ideas:

…and the result is a craft that some of us may be familiar with. The balloon/payload ratio is improved to 10:1, or even 5:1. It is my prediction that the fusion of cheap VTOL technology with rigid-frame airships will lead to a transportation revolution greater in significance than the rise of the automobile. Combined with software based on descendents of Sebastian Thrun’s for self-navigating cars, you have an airship that can go park itself innoculously and propel itself back to your home at the push of a button. Redundant navigation networks coupled with radar beacons and emergency auto-braking will minimize any accidents. According to Thrun’s comments at the Stanford Singularity Summit, this technology may be less than 15 years away, for cars at least. A three-dimensional version of the same technology cannot be far off.
This is all bad news for real estate investors. Just like the advent of the automobile allowed the existence of suburbs and made it possible to commute dozens of miles to work, the advent of personal airships will expand the suburb radius by an order of magnitude, making it possible to commute and distribute goods over hundred-mile distances. It also threatens the environment by greatly opening up the number of places one can build a house or factory.
Over at Onotech, San Francisco techie Ethan Stock is arguing the value of derigibles for mass transit as well as personal transit, in an age of prohibitively expensive and environmentally unfriendly fossil fuels:
Right now it takes about 10 hours to fly the 6000 miles from SF to London, at about 600 miles per hour. An appropriately designed dirigible could do it in 24 hours at 250 miles per hour, at a vastly (90%?) reduced fuel cost — since a dirigible would benefit both from the cubic reduction in power-required vs. speed flown, and the absence of the need to expend power to keep the aircraft up in the air, which accounts for a large percentage of airplane fuel cost. Imagine that, instead of spending 10 hours on a cramped, noisy, EXPENSIVE airplane, you spent a full day and a full night on a quiet, spacious, dirigible? Broadband internet access would be essential — not only could you make crystal-clear phone calls, but you could transfer any volume of data. You’d get nice meals from a large kitchen. You could walk around and exercise. You could sleep in a real bed. And in a world of $70 – $140 a barrel oil costs, all of this might be CHEAPER to provide than a miserable 10-hour flight.
Meanwhile, DARPA is talking about using airships for surveillance superiority, a Swiss inventor wants to replace all cell phone transmission towers with a few high-altitude ships, Dynalifter will be a 300-meter airship designed to take the place of trucks, Millenium Airship is doing the same thing, a heavier-than-air airship hybrid prototype will be built by 2010, Lockheed Martin wants to use the things for missile defense, and some people are discussing building stratospheric zeppelin hotels. Is there anything these glorious machines won’t do?

See you in the skies!
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