Editing Wankel engine (section)

===Norton===
{{Multiple image
| direction = vertical
| width = 250
| header = Rotary-powered motorcycles
| image1 = MyPicClassic.jpg
| caption1 = '''Figure 26.'''<br/>[[Norton Classic]] air-cooled twin-rotor motorcycle
| image2 = SL-Norton-Interpol.jpg
| caption2 = '''Figure 27.'''<br/>Norton Interpol2 prototype
}}

In Britain, [[Norton Motorcycles]] developed a Wankel rotary engine for [[motorcycle]]s, based on the Sachs air-cooled rotor Wankel that powered the DKW/Hercules W-2000 motorcycle. This two-rotor engine was included in the [[Norton Commander (motorcycle)|Commander]] and [[Norton F1|F1]]. Norton improved on Sachs's air cooling, introducing a plenum chamber. [[Suzuki]] also made a production motorcycle powered by a Wankel engine, the [[Suzuki RE5|RE-5]], using ferro[[TiC]] alloy apex seals and an NSU rotor in a successful attempt to prolong the engine's life.

In the early 1980s, using earlier work at [[Birmingham Small Arms|BSA]], [[Norton Motorcycle Company|Norton]] produced the air-cooled twin-rotor [[Norton Classic|Classic]], followed by the liquid-cooled [[Norton Commander (motorcycle)|Commander]] and the Interpol2 (a police version).<ref name="p1htL">{{Citation |url=http://www.der-wankelmotor.de/Motoraeder/Norton/Motorraeder_Triumph/motorraeder_triumph.html |title=Triumph-Norton Wankel |publisher=Der Wankelmotor |place=DE |access-date=2012-08-14}} ([http://translate.google.de/translate?u=http%3A%2F%2Fwww.der-wankelmotor.de%2FMotoraeder%2FNorton%2FMotorraeder_Triumph%2Fmotorraeder_triumph.html&sl=de&tl=en&hl=en&ie=UTF-8 translation]).</ref> Subsequent Norton Wankel bikes included the [[Norton F1]], F1 Sports, RC588, [[Norton RCW588]], and NRS588. Norton proposed a new 588-cc twin-rotor model called the "NRV588" and a 700-cc version called the "NRV700".<ref name="8j5sm">{{cite web|url= http://www.jpsnorton.com/|title=JPSNorton.com when the British rotary engined racers ruled UK superbikes |website=jpsnorton.com}}</ref> A former mechanic at Norton, Brian Crighton, started developing his own rotary engined motorcycles line named "Roton", which won several Australian races.

Despite successes in racing,<ref name="oMPvj">{{cite web|url= http://www.jpsnorton.com/race-results/ |title=Race Results - JPS Norton|first1=Neil|last1=Meads |website=jpsnorton.com}}</ref> no motorcycles powered by Wankel engines have been produced for sale to the general public for road use since 1992.