Motorcycle land-speed record explained

The motorcycle land-speed record is the fastest speed achieved by a motorcycle on land. It is standardized as the speed over a course of fixed length, averaged over two runs in opposite directions. AMA National Land Speed Records requires two passes the same calendar day in opposite directions over a timed mile/kilometre while FIM Land Speed World Records require two passes in opposite directions to be over a timed mile/kilometre completed within two hours.[1] These are special or modified motorcycles, distinct from the fastest production motorcycles. The first official FIM record was set in 1920, when Gene Walker rode an Indian on Daytona Beach at 104.12mph. Since late 2010, the Ack Attack team has held the motorcycle land speed record at 376.36mph.

History

The first generally recognized motorcycle speed records were set unofficially by Glenn Curtiss, using aircraft engines of his own manufacture, first in 1903, when he achieved 64mph at Yonkers, New York using a V-twin, and then on January 24, 1907, on Ormond Beach, Florida, when he achieved 136.27mph using a V8 housed in a spindly tube chassis with direct shaft drive to the rear wheel.[2] An attempted return run was foiled when his drive shaft came loose at speed, yet he was able to wrestle the machine to a stop without injury. Curtiss's V8 motorcycle is currently in the Transportation collection of the Smithsonian Institution.

Curtiss's 1907 record was the fastest any person had ever travelled under power: the rail record stood at 131mph (electric powered); the motor car record was 127.66mph (steam powered); while in the air, where weight considerations made the internal combustion engine dominant, the air speed record was still held by the Wright Brothers at a mere 37.85mph.The first officially sanctioned Fédération Internationale de Motocyclisme (FIM) record was set in 1920, when Gene Walker rode an Indian on Daytona Beach at 104.12mph. The first FIM-sanctioned record to exceed Curtiss's 1907 speed did not occur until 1930, at Arpajon in France, when an OEC special with a 1,000cc supercharged JAP V-twin engine averaged 137mph over the required two-way runs. The 1930s saw an international battle between the BMWs ridden by Ernst Henne and various JAP-powered British motorcycles, with the penultimate pre-World War II record being taken in 1937 by Italy's Gilera, shortly before BMW set a final pre-war record of 173.68mph that stood for 14 years.

After World War II, the German NSU factory battled Britain's Vincent HRD and Triumph for top speed honors during the 1950s, with British-engined machines dominating the 1960s. New Zealand's Burt Munro (of the film The World's Fastest Indian), set a speed record at Bonneville in 1967 of 183mph for a motorcycle with an engine under 1000cc.

A Japanese-engined streamliner motorcycle first took the record in 1970, and alternated with Harley-Davidson-engined machines as record-holders until 1990, when Dave Campos's streamliner powered by twin Harley-Davidson engines averaged 322.15mph. That record stood for 16 years before being surpassed in 2006 by the Ack Attack team's twin Suzuki engined machine at an average of 342.8mph. The BUB team, using a custom-built V4 engine, then alternated as record holders with Ack Attack over the next four years. As of November 2022, the Ack Attack team has held the motorcycle land speed record at 376.36mph since late 2010.

Jet-engine trike

The fastest record certified by the FIM is that set in 1964 by the jet-propelled tricycle, Spirit of America. It set three absolute land speed records, the last at . While such records are usually validated by the Fédération Internationale de l'Automobile, the FIA only certifies vehicles with at least four wheels, while the FIM certifies two- and three-wheelers. Breedlove never intended Spirit of America to be classified as a motorcycle, despite its tricycle layout, and only approached the FIM after being rejected for record status by the FIA. Spirit of Americas FIM-ratified record prompted the FIA to add the new category of thrust-powered vehicles to its world record listings. Furthermore, most people think of the tricycle Spirit of America, now part of the permanent collection of Chicago's Griffin Museum of Science and Industry, as a car and not a motorcycle.[3]

List of AMA National and FIM World Land Speed records

Link to Bonneville Motorcycle Speed Trials AMA National and FIM World Records

List of "absolute" and Streamliner records

DateLocationRiderMakeEngine displacement cc (cu in)SpeedComments
mphkm/h
1903 Yonkers, New York, USGlenn CurtissCurtiss V-21000cc64103over the mile, first (unofficial) World Speed Record, Hercules V-twin[4]
1905Blackpool, UK - Average Speed over 1,000m on 27 July 1905.Henri CissacPeugeot 1,489cc V twin1,489cc87140Blackpool Speed Trials
24 January 1907Ormond Beach, Florida, USGlenn CurtissCurtiss V-84000cc136.27219.31Unofficial record stood over 20 years[5] [6]
14 April 1920Daytona Beach, Florida, USGene WalkerIndian994cc103.56166.66[7] [8]
6 November 1923Brooklands, UKClaude TempleAnzani108.48174.58
8 June 1924Arpajon, France Tommy TurnerAJS Special-AJ Stevens799cc110.66178.08
6 July 1924Arpajon, France Bert le VackBrough Superior-JAP]867cc118.99191.50
5 September 1926 Arpajon, FranceClaude F. Temple OEC-Temple996cc121.44195.44
25 August 1928Arpajon, France Owen M. BaldwinZenith-JAP996cc124.27199.99
25 August 1929Arpajon, France Bert Le Vack Brough-Superior 995cc129.00207.6
19 September 1929Ingolstadt, Germany Ernst Jakob HenneBMW WR 750735cc134.67216.75, The first successful use of a supercharger for a World Record.
31 August 1930Arpajon, France Joseph S. Wright OEC-Temple JAP994cc137.23220.99 First official record to exceed Curtiss' pioneering effort.
21 September 1930Ingolstadt, Germany Ernst Jakob HenneBMW WR 750735cc137.74221.67
6 November 1930Cork, IrelandJoseph S. Wright Zenith JAP 995cc150.74242.59
2 November 1932Tát, Hungary Ernst Jakob HenneBMW 736cc[9] [10] 151.86244.40
30 October 1934Gyon, HungaryErnst Jakob HenneBMW 736cc153.00246.23
27 September 1935A3 autobahn (Frankfurt-München route), Germany Ernst Jakob HenneBMW 736cc159.10256.04[11] [12] First record over 250km/h
12 October 1936A3, Germany Ernst Jakob HenneBMW Type 255493cc[13] 169.08272.11
19 April 1937Gyon, HungaryEric FernihoughBrough Superior-JAP 995cc169.72273.14 JAP supercharged[14]
Fernihough was killed in a 1938 attempt
21 October 1937Autostrada A4 (Italy) (Brescia-Bergamo route) Piero TaruffiGilera492cc170.37274.18 Supercharged four-cylinder. Taruffi famous as Grand Prix driver.
28 November 1937A3, Germany Ernst Jakob HenneBMW 495cc173.68279.50 Last pre-World War II record
1951A9 autobahn (Ingolstadt-München route), Germany Wilhelm HerzNSU Delphin I streamliner 499cc180.29290.322 First post-World War II record
1955Swannanoa, New ZealandRussell Wright Vincent-HRD998cc184.83 297.640
25 September 1955Bonneville, US John AllenTriumph649cc192.719 310.151 [15] Unratified by FIM[16]
2 August 1956Bonneville, US Wilhelm Herz NSU Delphin III streamliner 499cc189.5304.97[17]
4 August 1956Bonneville, US Wilhelm Herz NSU Delphin III streamliner 499cc210.64338.992First record over 200 mph (320 km/h)
6 September 1956Bonneville, US Johnny Allen Triumph Tiger T110649cc214.4 345.188[18] Unratified by FIM[19]
5 September 1962Bonneville, US William A. Johnson Triumph 650cc224.57 361.41[20]
1966Bonneville, US Robert Leppan Triumph Special Gyronaut X-1 streamliner1298cc245.667 395.36Triumph Special twin-engined
1970Bonneville, US Don VescoYamaha "Big Red" streamliner 700cc251.66 405.25 Two-stroke twin-engined[21]
First record over 2500NaN0
1970Bonneville, US Cal RaybornHarley-Davidson streamliner1480cc265.492 410.37 single nitro-fueled Sportster engine nicknamed 'Godzilla' built by Warner Riley.
28 September 1975Bonneville, US Don Vesco Yamaha "Silver Bird" streamliner 1480cc302.92 487.515 First record over 3000NaN0
28 August 1978Bonneville, US Don Vesco Lightning Bolt streamliner2030cc318.598 509.757Turbocharged twin Kawasaki Kz1000 engines. First record over 5000NaN0[22]
14 July 1990 Bonneville, US Dave CamposEasyriders streamliner 3000cc322.150 518.450 Twin Harley-Davidson engines. Longest held official record, 16 years (see Curtiss' 20 year unofficial record)[23]
3 September 2006 Bonneville, US Rocky Robinson Top Oil-Ack Attack streamliner2600cc342.797 551.678 Twin Suzuki engines[24]
5 September 2006 Bonneville, US Chris CarrBUB Seven Streamliner2997cc350.884 564.693 BUB/Sierra Design V4
26 September 2008 Bonneville, US Rocky Robinson Top Oil-Ack Attack streamliner2600cc360.913 580.833 Twin Suzuki engines
24 September 2009 Bonneville, US Chris Carr BUB Seven Streamliner2997cc367.382 591.244 BUB/Sierra Design V4
25 September 2010 Bonneville, US Rocky Robinson Top Oil-Ack Attack streamliner2600cc376.363 605.697 Twin Suzuki engines
First record over 6000NaN0

Notes

a. At the time, it had been the accepted practice that the FIM would require the American Automobile Association to carry out official timing for any run in the USA. However shortly before the record attempt the A.A.A. had withdrawn from controlling motor sport, leaving no official body representing the FIM. Although every effort had been made to show the impartiality of the officials and the accuracy of the equipment, after several months the claimed record was not accepted by the FIA as the timing was "not carried out by an official certified by the FIM.".[25]

b. The issues with official FIM timing of runs in the US were still not resolved at this time. NSU had solved the problem for their runs in August by including accredited timekeepers and officials in the team that they bought over with them from Europe. The British Motor Corporation had also been attempting record runs that year, and the FIA arranged for a British timekeeper to go to America for these. The equipment he had used for timing the runs was tested and approved by the FIA. However he had to leave America before Allen could make his run, and so the same equipment was used by two Americans who had been given written authority to act as timekeepers on behalf of the FIM. At the FIM meeting in Paris in October, the FIM postponed approval of the record, alleging that the timekeeper was not recognised by the FIM and that no official FIM observer had been present. After further deliberation and investigation, the FIM announced in April 1957 that they were unable to ratify the record claimed as the equipment used had not been approved by them.[26] [25] [27]

References

Literature

See also

External links

Notes and References

  1. Web site: Rules & Records. 2014-02-23. Bonneville Motorcycle Speed Trials. en-US. 2019-09-02. 5 December 2020. https://web.archive.org/web/20201205220551/https://bonnevillespeedtrials.com/rulesclasses/. dead.
  2. p. 253
  3. "LandSpeed" Louise Ann Noeth, Bonneville Salt Flats, MBI Publishing
  4. p. 31-32
  5. p. 41
  6. p. 116
  7. , p.27.
  8. p. 238
  9. p. 16
  10. p. 238 lists this as 735 cc, not 736 cc.
  11. p. 188. "Then in 1936, BMW technicians decided to decrease the engine's displacement from 736 to 493. This might have seemed a backwards move, but there was a sound basis for this technical change. [...] The engine was a 493 cc double-overhead-cam with a bore and stroke of 66 x 72 mm, a Zoller supercharger mounted on the front of the crankshaft [...] This supercharging technology had been under development since 1929, when a production R63 model had been fitted with a positive displacement blower..."
  12. Tragatsch, caption p. 304, credits this run as 256.06 with a supercharged 746 cc, while contradicting this on the same page in a table listing the displacement for the '32-'35 BMWs as 735 cc, and as 495 cc in 1936, rather than 493 cc.
  13. Setright (1979) p. 238 has this as 495 cc.
  14. p. 304
  15. 6 October 1955. Fantastic speeds at Utah. The Motor Cycle. Iliffe & Sons. London. 95. 2739.
  16. , p.40.
  17. 9 August 1956. Over 210 m.p.h.. The Motor Cycle. Ilffe & Sons. London. 97. 2782. 169.
  18. 13 September 1956. Allen does it. The Motor Cycle. Iliffe & Sons. London. 97. 2787. 344.
  19. , p.305.
  20. November 1962. World's Fastest. Motor Cyclist Illustrated. City Magazines Ltd. London. 435.
  21. Clayton, Graham, The Barber Vintage Motorsports Museum. p. 46. Motorcycle Mojo Magazine
  22. , p.64.
  23. , p.98.
  24. Web site: 2006 Bonneville Streamliner Battle. Madson. Bart. 18 October 2006. Moto USA. Motorcycle USA.com. 28 August 2016. https://web.archive.org/web/20150930233648/http://www.motorcycle-usa.com/2006/10/article/2006-bonneville-streamliner-battle/. 30 September 2015.
  25. 13 December 1956. More delaying action. The Motor Cycle. Iliffe & Sons. London. 97. 2800. 788.
  26. 11 October 1956. Bombshell in Paris. The Motor Cycle. Iliffe & sons. London. 97. 2791.
  27. 25 April 1957. Sorry story. The Motor Cycle. Iliffe & sons. London. 98. 2819.