Extreme Tire Changes

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Here is an interesting article on how a F1 pit crew changes tires during a race:

http://www.autosport.com/news/report.php/id/108724

".................The wheels, axles and wheel nuts are unrecognisable compared to just a few years ago...................Teams minimise the thread to reduce time required to spin the nut. Ferrari's wheelnuts have barely three turns of thread.....................Last year Mercedes found running Helium gas in wheelguns beneficial. Although this practice is now banned, it shows the importance of the power of the wheelgun. ..................."
 
Interesting. Our aircraft uses a single nut and a pin snap ring application. A groove on the nut and axle. The pin on the snap ring goes in the groove then the snap ring, safety both ends of the snap ring together. I wish cars would have a similar setup.
 
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