Sunday, February 5, 2023

ThrustSSC Land Speed Record

ThrustSSCThrust SSC or Thrust SuperSonic Car is a British jet car developed by Richard Noble, Glynne Bowsher, Ron Ayers, and Jeremy Bliss.

Thrust SSC holds the world land speed record, set on 15 October 1997, and driven by Andy Green, when it achieved a speed of 1,228 km/h (763 mph) and became the first land vehicle to officially break the sound barrier.

Both Thrust SSC and Thrust2 are displayed at the Coventry Transport Museum in Coventry, England. As part of the Museum's redevelopment project, both cars were relocated by specialist haulier from their position in the Museum's Spirit of Speed Gallery to the new Biffa Award Land Speed Record Gallery which opened in 2015.

The car is 16.5 m (54 ft) long and 3.7 m (12 ft) wide and weighs nearly 10 tons. It had a reported thrust of 223 kN (approximately 50,000 pounds force) at some operating condition. If achieving full reported thrust while operating at the record speed, it works out to around 102,000 brake horsepower, calculated as force times velocity. Jet engines are not designed to operate at peak airspeed while still in ground effect; a proper estimate would need to take this into account.

Details

The car was driven by Royal Air Force fighter pilot Wing Commander Andy Green in the Black Rock Desert in the state of Nevada. It was powered by two afterburning Rolls-Royce Spey turbofan engines, as used in the British version of the F-4 Phantom II jet fighter. The twin engines developed a net thrust of 223 kN (50,000 lbf), giving a power output of roughly 102,000 bhp (76 MW) at the measured record speed of 341 metres per second, burning around 18 litres/second (4.0 Imperial gallons/s or 4.8 US gallons/s) of fuel. Transformed into the usual terms for car mileages based on this speed, the fuel consumption was about 4,850 L/100 km (0.06 mpg‑imp; 0.05 mpg‑US). The thermal power released by burning 18 litres/second of aviation fuel is approximately 630 MW which means the vehicle was operating at around 12% efficiency at its record speed, efficiency being the useful working power (76 MW) divided by the thermal power (630 MW).

The record run in October 1997 was preceded by extensive test runs of the vehicle in autumn 1996 and spring 1997 in the Al-Jafr desert (located in Ma'an Governorate) in Jordan, a location unknown before for its capabilities as a test range for high speed land vehicles.

After the record was set, the World Motor Sport Council released the following message:

The World Motor Sport Council homologated the new world land speed records set by the team ThrustSSC of Richard Noble, driver Andy Green, on 15 October 1997 at Black Rock Desert, Nevada (USA). This is the first time in history that a land vehicle has exceeded the speed of sound. The new records are as follows:

  • Flying mile     1,227.985 km/h (763.035 mph)
  • Flying kilometre 1,223.657 km/h (760.345 mph)

In setting the record, the sound barrier was broken in both the north and south runs.

Paris, 11 November 1997.

The complete run history is available.

Legacy

In 1983 Richard Noble had broken the world land speed record with his earlier car Thrust2, which reached a speed of 1,019 km/h (633 mph). The date of Andy Green's record came exactly a half century and one day after Chuck Yeager broke the sound barrier in Earth's atmosphere, with the Bell X-1research rocket plane on 14 October 1947.

Both Thrust SSC and Thrust2 are displayed at the Coventry Transport Museum in Coventry, England. Visitors can ride a 4D motion simulator depicting a computer-generated animation of the record-breaking run from the perspective of Green.

Several teams are competing to break the record, including the Bloodhound LSR project, launched in 2008, and the North American Eagle Project, launched in 2004.

            https://en.wikipedia.org/wiki/ThrustSSC

  

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