Guy Martin '11.1981–pr.

JCB Fastrac Two, Guy Martin

In October 2019, "Fastrac Two" hit an astonishing peak speed of 153.771mph on its way to recording an average of 135.191mph at Elvington.

The record-breaking attempt was overseen by Guinness World Records, who confirmed that the JCB Fastrac completed two runs, in either direction through a speed trap set 1km apart, within the allotted time, to set the 135.191mph record.

Fastrac Two maintained the same design principles and packaging, but would be 10% lighter than its predecessor (Fastrac One), reducing its weight to less than five tonnes. The tractor’s bonnet was changed from steel to aluminium; non-structural material was removed from the chassis, while the cab and roll cage mounts would be incorporated into the chassis design.

Streamlined bodywork also had a role to play, with aerodynamic analysis and development conducted by Rob Smedley, ex-Williams head of vehicle performance, and computational fluid dynamics (CFD) used by Williams Advanced Engineering, to give Fastrac Two a 10% reduction in drag over Fastrac One.

This saw the development of new cab air deflectors, a new rear cover, re-designed radiator covers, new side panels, front bumper and cab roof, would also help the tractor to cut through the air, on its way to the new Guinness World Record.

An extra shot of power was needed, and the 7.2 litre, 6-cylinder JCB Dieselmax engine produced at JCB Power Systems in Derbyshire, also received some extra attention. A new, larger turbocharger was accompanied by water injection and charge-air cooling through ice tanks, reduced intake temperatures by 50˚C.

An electrically driven supercharger system was again used, while a revised exhaust manifold contributed to improved flow. The adoption of a sophisticated anti-lag system would also keep the larger turbocharger delivering its maximum boost pressure while gear changes took place. The result of the powertain improvements was a peak output of 1,016hp at 3,150rpm, and over 2,500Nm of torque.

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Wheels&Tracks

November 19, 2019

JCB’s Fastrac has stormed into the record books after being crowned the world’s fastest tractor with a speed of 217.57 kph (135.191 mph).

The Fastrac – designed and built by a team of young engineers in Staffordshire – secured the title at Elvington Airfield in York with motorbike racer and lorry mechanic Guy Martin at the wheel. The feat was officially ratified by Guinness World Records who presented the company with a special framed certificate minutes after the achievement.

The astonishing story of the tractor’s development and assault on the record was told in a TV documentary on Channel 4 last night (Nov 17) called ‘The World’s Fastest Tractor.’

The achievement comes after JCB set its first Guinness World Record for the fastest tractor at Elvington in June. Called Fastrac One, it reached a speed of 166.7kph (103.6 mph) with Guy Martin in the driver’s seat.

JCB then embarked on an ambitious plan to break its own record and developed Fastrac Two – which was 10% lighter and was even more streamlined than its smaller brother. Fastrac Two hit an astonishing peak speed of 247.47kph (153.771mph) on its way to recording an average of 217.57 kph (135.191mph) at Elvington. Both tractors are based on a standard, commercially available JCB Fastrac, which is sold around the world.

The record-breaking attempt was overseen by Guinness World Records, who confirmed that the JCB Fastrac completed two runs, in either direction through a speed trap set 1km apart, within the allotted time, to set the 217.57 kph (135.191mph) record.

Getting Fastrac Two on to the Elvington aerodrome in just a matter of months has been a tall order, but one that project manager Alex Skittery and his team of young engineers have grabbed with both hands.

To secure the World’s fastest tractor record, JCB’s engineering team returned to the drawing board to produce the vastly-improved Fastrac Two. Powered by JCB’s 7.2 litre, 6-cylinder Dieselmax engine produced at JCB Power Systems factory in Derbyshire, peak power was measured at 1,016hp backed up by over 2,500Nm of torque.

Despite the tractor developing 1,016hp, it achieved over 5mpg and needed only a tiny 20-litre fuel tank to make its high-speed runs. And while it has the capability to run on vegetable oil, a special formulation of high-performance racing diesel was used.

Aiming for a target speed of 241.402kph (150mph) required Fastrac Two to shed even more weight. It is 10% lighter than Fastrac One, while benefitting from greater strength and additional streamlining. With the help of key industry partners, the JCB engineering team delivered a tractor capable of setting a new World record for the fastest tractor (modified), for which Guy Martin is undeniably proud to have been holding the steering wheel.

It was Lord Bamford’s idea to develop a tractor which had a high road speed capable of field work, and the World speed record now achieved came 28 years since the first production model rolled off the line.

https://jcbcea.com.au/2019/11/jcb-fastrac-storms-into-record-books-as-worlds-fastest-tractor/

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