JCB Hydromax Sets New FIA Hydrogen Land Speed Record at 406.320 mph
The world of motorsport has reached another significant technological milestone after the Fédération Internationale de l’Automobile (FIA) confirmed a new provisional World Land Speed Record for a vehicle powered by a hydrogen internal combustion engine. The achievement was delivered by the JCB Hydromax, which reached an astonishing 406.320 miles per hour, equivalent to 653.909 kilometres per hour, on the famous Bonneville Salt Flats in Utah, United States.
The record was achieved over a flying mile and flying kilometre, marking a major step forward for hydrogen-powered performance technology. The result remains provisional pending formal ratification by the FIA Land Speed Records Commission, but the achievement has already established a major new benchmark for hydrogen internal combustion vehicles.
Driven by Wing Commander Andy Green OBE, one of the most celebrated figures in land speed racing, the JCB Hydromax demonstrated that hydrogen combustion technology can deliver extreme performance while offering an alternative pathway toward lower-carbon mobility. The achievement also highlights the continuing role of motorsport as a testing ground for technologies that could influence future transportation.
A New Benchmark for Hydrogen Combustion
The JCB Hydromax’s 406.320 mph performance represents a dramatic improvement over the previous FIA-recognised hydrogen internal combustion land speed record. That earlier benchmark was established in 2004 by the BMW H2R, which reached 185.5 mph, or approximately 298.5 km/h.
By more than doubling that previous speed, the JCB project demonstrates the rapid development of hydrogen combustion technology over the past two decades. The achievement provides an indication of what can be accomplished when advanced engine development, lightweight vehicle engineering, aerodynamics, fuel systems and motorsport expertise are brought together.
Unlike hydrogen fuel-cell vehicles, which use an electrochemical process to generate electricity, the JCB Hydromax uses hydrogen in an internal combustion engine. This approach allows engineers to build upon many technologies and engineering principles already familiar to the automotive and heavy-equipment industries.
The record therefore has significance beyond a single high-speed run. It demonstrates the potential of hydrogen combustion as a performance technology and adds to the growing conversation about alternative energy sources for transportation.
FIA Verification Ensures the Record Meets Strict Standards
Setting an official FIA World Land Speed Record involves considerably more than simply reaching a high speed. The FIA applies detailed sporting and technical procedures designed to ensure that record attempts are conducted fairly, safely and accurately.
For the JCB Hydromax attempt, FIA officials worked closely with the Automobile Competition Committee of the United States (ACCUS), an FIA Member Club, as well as a specialist local team at Bonneville.
The vehicle was subjected to scrutineering and technical checks before the record attempt. Safety inspections were also conducted, while the timing systems and performance data were independently verified.
Under FIA regulations, Andy Green was required to complete two runs in opposite directions across the measured flying-mile course. This requirement is essential because it helps reduce the influence of environmental conditions such as wind direction.
The final record speed is determined using the average speed achieved during the two runs. This process ensures that a record cannot simply be established through a favorable tailwind or other one-directional conditions.
The 406.320 mph figure therefore represents the result of a carefully controlled and independently monitored sporting procedure rather than a single peak-speed measurement.
Bonneville’s Historic Role in Land Speed Records
The Bonneville Salt Flats in Utah have long been associated with some of the most ambitious land speed attempts in history. The vast, flat salt surface provides an iconic environment for teams attempting to push vehicles beyond conventional speed limits.
For JCB, the location also carries considerable historical significance.
The company previously made headlines at Bonneville in 2006 when its Dieselmax vehicle established the FIA World Diesel Land Speed Record. Andy Green was also behind the wheel of that machine, which reached 350.092 mph in August 2006.
Twenty years after that achievement, JCB has returned to the same legendary venue with a completely different technological objective.
The Hydromax project demonstrates how the company has moved from showcasing the potential of diesel power at extreme speeds to exploring hydrogen combustion as a future energy pathway.
The return also provides a symbolic connection between two generations of powertrain technology. Dieselmax demonstrated what could be achieved through advanced diesel engineering, while Hydromax is designed to explore the possibilities of hydrogen combustion.
Andy Green Adds Another Extraordinary Achievement
The record also adds another chapter to Andy Green’s extraordinary career.
Green is already widely recognized as the fastest person on Earth after setting the outright FIA World Land Speed Record in 1997. Behind the wheel of ThrustSSC, he reached 763.035 mph, equivalent to 1,227.986 km/h.
That record remains one of the most remarkable achievements in the history of motorsport. Unlike the JCB Hydromax, ThrustSSC used jet propulsion and was specifically designed to pursue the outright land speed record.
The Hydromax was not created to challenge the ultimate jet-powered benchmark. Instead, its mission was to demonstrate the performance potential of hydrogen internal combustion technology.
Nevertheless, reaching more than 400 mph with a hydrogen-powered internal combustion vehicle represents an extraordinary engineering accomplishment. It also means Green now has another unique distinction: he has driven both the world’s fastest vehicle overall and the vehicle that has established this new hydrogen internal combustion benchmark.
FIA’s Long History With Land Speed Records
The latest JCB achievement also reinforces the FIA’s long-standing involvement in land speed record attempts.
For more than a century, the federation has played a role in officially recognizing and documenting extraordinary achievements in speed. FIA World Land Speed Records represent internationally recognized and independently verified milestones in the pursuit of maximum vehicle performance.
Historical records dating back to the 1920s are preserved in the FIA Archives in Valleiry, France. These records provide a unique historical account of how vehicle technology has evolved over generations.
From early piston-engine machines to supercharged vehicles, turbine-powered designs and jet-propelled cars, land speed records have consistently provided a window into the technological ambitions of each era.
The Hydromax now adds hydrogen combustion to that long history.
Collaboration Between FIA and JCB
The record attempt was supported by a relationship between the FIA and JCB that began well before the Bonneville run.
The FIA Technical and Safety Department has been examining gaseous hydrogen technologies since 2021. During the development of the JCB Hydromax project, the federation shared knowledge and technical learnings from this work with JCB’s engineering team.
Such collaboration is particularly important because hydrogen presents a different set of engineering and safety considerations compared with conventional liquid fuels.
Hydrogen is highly energy-dense by mass but requires specialized storage and handling systems. Engineers must carefully consider fuel containment, delivery, ignition characteristics, thermal management and safety procedures.
The experience gained through the Hydromax project can therefore contribute to broader motorsport development.
Although the FIA has since shifted its technical focus toward liquid hydrogen storage for motorsport applications, the safety information and technical data collected during its work on gaseous hydrogen remain valuable.
That knowledge could benefit other motorsport categories exploring hydrogen technologies, including the FIA Extreme H World Cup.
Hydrogen’s Growing Role in Motorsport
The JCB record arrives at a time when motorsport organizations and vehicle manufacturers are increasingly investigating alternatives to conventional fossil fuels.
Motorsport has historically served as an environment where engineers can test technologies under demanding conditions. High speeds, extreme temperatures, intense mechanical loads and strict performance requirements provide an unusually challenging development environment.
Hydrogen is attracting attention because it can potentially be used in several different propulsion systems. Fuel-cell technology offers electric propulsion, while hydrogen internal combustion engines allow engineers to retain the basic architecture of combustion powertrains while replacing conventional fuels with hydrogen.
The Hydromax project focuses specifically on the second approach.
The achievement does not mean hydrogen combustion is ready to replace every conventional engine application. Significant challenges remain, including hydrogen production, transportation, storage infrastructure, energy efficiency and the overall cost of developing hydrogen systems.
However, demonstrating that hydrogen combustion can propel a vehicle beyond 400 mph is an important proof point.
Motorsport and Sustainable Mobility
FIA President H.E. Mohammed Ben Sulayem described the achievement as a historic milestone and emphasized the relationship between innovation, performance, speed and sustainability.
His comments reflect a broader transformation taking place across motorsport. Racing and record-breaking have traditionally been associated with high fuel consumption and maximum mechanical performance. Increasingly, however, motorsport organizations are looking for ways to combine extreme performance with alternative energy technologies.
Hydrogen is one of the technologies being examined as part of that transition.
The JCB Hydromax shows that sustainability does not necessarily have to mean abandoning the engineering characteristics associated with high-performance motorsport. Instead, engineers can explore new fuels and propulsion systems while maintaining ambitious performance objectives.
The record therefore represents more than a number on a timing sheet. It is also a technology demonstration designed to stimulate further research and development.
A Milestone for JCB
For JCB, the Hydromax project represents another major achievement in the company’s history of engineering innovation.
The company’s earlier Dieselmax record demonstrated its ability to develop a highly specialized vehicle capable of achieving extraordinary speeds. The Hydromax project applies that same engineering ambition to a completely different fuel.
The 406.320 mph result demonstrates the capabilities of the vehicle, its powertrain and the team responsible for developing and operating it.
It also provides JCB with valuable real-world experience in hydrogen technology. Lessons learned from high-speed testing can potentially contribute to future research involving hydrogen engines, fuel systems and related technologies.
The FIA’s provisional recognition of the JCB Hydromax record marks an important moment in the development of hydrogen-powered motorsport. Once the FIA Land Speed Records Commission completes the ratification process, the achievement will become a formally recognized benchmark for hydrogen internal combustion vehicles.
More importantly, the record could encourage additional research into hydrogen-powered engines and alternative propulsion systems.
The automotive and motorsport industries are currently exploring multiple pathways toward reducing dependence on conventional fossil fuels. Battery-electric vehicles, hybrid systems, fuel cells, synthetic fuels and hydrogen combustion are all being evaluated for different applications.
No single technology is likely to provide a universal solution for every type of vehicle. Heavy-duty transportation, motorsport, commercial equipment and passenger vehicles each have different operating requirements.
Hydrogen combustion could potentially have a role in applications where high power, fast refueling and existing combustion-engine expertise are important considerations.
The JCB Hydromax does not answer all of the questions surrounding hydrogen mobility, but it provides a powerful demonstration of what the technology can achieve under extreme conditions.
A New Chapter in Speed and Technology
The 406.320 mph run on the Bonneville Salt Flats has created a new milestone in the century-long history of FIA World Land Speed Records.
It has also connected several remarkable stories: JCB’s return to Bonneville, Andy Green’s continuing record-breaking career, the FIA’s long history of documenting land speed achievements and the industry’s growing interest in hydrogen propulsion.
Most importantly, the Hydromax has shown that hydrogen internal combustion technology can compete at extraordinary speeds.
As the FIA completes the formal ratification process, the achievement stands as a significant marker for hydrogen-powered performance. The record demonstrates that innovation and speed can coexist with the search for more sustainable mobility solutions.
From Dieselmax in 2006 to Hydromax two decades later, JCB’s Bonneville journey illustrates how quickly propulsion technology can evolve. The latest record may ultimately be remembered not only for its impressive 406.320 mph speed, but also for helping establish hydrogen as an increasingly important technology in the future of high-performance transportation.
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