Category Archives: transportation hacks

Battle Tested Current Limiter for Cheap DC Motor Controllers

Running a brushed motor in muddy or dusty environments takes a toll on controllers, with both heavy back EMF and high stall currents. This explains one of the challenge in Europe’s Hacky Racer series, which is decidedly more off-road than America’s Power Racing Series.

In pushing these little electric vehicles …read more

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Posted in brushed dc motor, current limiting, dc motor, dc motor controller, Hacky Racers, hardware, motor controller, transportation hacks | Leave a comment

Remanufacturing A Rotary Airplane Engine

If someone tells you they have seen a rotary engine, the chances are that you will immediately think of a Wankel engine, as you might find in some of the more exotic Mazda sports cars. But there is another rotary engine that has a prior claim to the name, and …read more

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Posted in engine, gnome, rotary engine, transportation hacks | Leave a comment

Goodyear Aero Thinks Flying Cars are a Thing

The 2019 Geneva International Motor Show has a number of “concept” vehicles. These are vehicles that usually include some cool feature that isn’t really practical — at least today. For example, in the past, concept cars have had adjustable color interior lighting, plug-in hybrid engines, and power windows — all …read more

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Posted in flying car, goodyear, Hackaday Columns, kickstarter, rants, snake oil, transportation hacks | Leave a comment

A Big, Mean, Inflated Machine

A Jeep is fun offroad, a motorcycle perhaps even more so. Diehard renegades go even further and get about in Unimogs and on snowmobiles. [amazingdiyprojects] might just have topped them all however, with his latest project – the astonishing Inflatable Car.

Despite the name, it’s a vehicle that defies clear …read more

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Posted in car, huge, inflatable, transportation hacks, vehicle | Leave a comment

When Will Our Cars Finally Speak the Same Language? DSRC for Vehicles

At the turn of the 21st century, it became pretty clear that even our cars wouldn’t escape the Digital Revolution. Years before anyone even uttered the term “smartphone”, it seemed obvious that automobiles would not only become increasingly computer-laden, but they’d need a way to communicate with each other and …read more

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Posted in 802.11p, car hacks, collision avoidance, Current Events, DSRC, fcc, Featured, infrastructure, lidar, radar, self-driving cars, spectrum, transportation hacks, wifi, wireless hacks | Leave a comment

Airbus To Halt Production Of The A380; Goodbye to an Engineering Triumph

Eleven years ago, the Airbus A380 entered commercial service with Singapore Airlines. In the time since then it has become the queen of the skies. It’s a double-decker airliner, capable of flying 550 passengers eight thousand nautical miles. Some configurations of the A380 included private suites. Some had a shower. This is the epitome of luxury, a dream of flying with long-stemmed glasses, a movie, and a pleasant dream in mid-air.

Now, after the cancellation of A380 orders by Emirates, Airbus has announced it will end production of this massive, massive plane. No, it’s not the last flight of the …read more

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Posted in A380, aircraft, Business, Current Events, Hackaday Columns, jumbo, news, transportation hacks | Leave a comment

Security Engineering: Inside the Scooter Startups

A year ago, ridesharing scooter startups were gearing up for launch. Workers at Bird, Lime, Skip, and Spin were busy improving their app, retrofitting scooters, and most importantly, figuring out the logistics of distributing thousands of electronic scooters along the sidewalks of the Bay Area. These companies were gearing up for a launch in early summer, but one company — nobody can remember exactly who — decided to launch early. First mover advantage, and all. Overnight, these scooter companies burst into overdrive, chucking scooters out of panel vans onto the sidewalk simply to keep up with the competition.

The thing …read more

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Posted in bird, Bird Boxing, bird scooter, Business, economics, electric scooters, Engineering, Featured, Original Art, transportation hacks, xiaomi | Leave a comment

Hacking the humble Roadster Bicycle

Think of bicycles, and your first mental image could be something pretty fancy. Depending on which side of the sport you favor, you could end up thinking of a road bike or an MTB, maybe DH, CX, BMX, TT, tandem or recumbent.

But for people in most parts of the World such as Asia, Africa and South America, the bicycle conjures up a very different image – that of the humble roadster. And this simple, hardy machine has spawned innumerable hacks to extend its usefulness and functionality by enterprising people with limited means. For them, it is not as much …read more

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Posted in bicycle, cargo bicycle, Featured, Interest, misc hacks, mother of invention, Original Art, transportation hacks | Leave a comment

Scramjet Engines on the Long Road to Mach 5

When Charles “Chuck” Yeager reached a speed of Mach 1.06 while flying the Bell X-1 Glamorous Glennis in 1947, he became the first man to fly faster than the speed of sound in controlled level flight. Specifying that he reached supersonic speed “in controlled level flight” might seem superfluous, but it’s actually a very important distinction. There had been several unconfirmed claims that aircraft had hit or even exceeded Mach 1 during the Second World War, but it had always been during a steep dive and generally resulted in the loss of the aircraft and its pilot. Yeager’s accomplishment wasn’t …read more

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Posted in Chuck Yeager, Current Events, Engineering, Featured, hypersonic, ramjet, scramjet, SR-71, SR-72, transportation hacks, X-43, X-51 | Leave a comment

Low Tech High Safety and the NYC Subway System

The year is 1894. You are designing a train system for a large city. Your boss informs you that the mayor’s office wants assurances that trains can’t have wrecks. The system will start small, but it is going to get big and complex over time with tracks crossing and switching. Remember, it is 1894, so computing and wireless tech are barely science fiction at this point. The answer — at least for the New York City subway system — is a clever system of signals and interlocks that make great use of the technology of the day. Bernard S. Greenberg …read more

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Posted in Featured, interlock, new york, nxsys, nyc, Retrotechtacular, safety, signal, subway, train, transportation hacks | Leave a comment