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View Full Version : Indy 500 wheel excursion solution.



devilmaster
07-19-23, 12:57 PM
Gotta admit, they're being very forthcoming about this....


It was determined that the wheel tether system, using high-performance Zylon material, did not fail in the 28 May incident...

...we have reached the conclusion that the outcome was the consequence of an unusual and never experienced set of circumstances...

The updated rear-wheel bearing retaining nut is being distributed to all IndyCar entrants from this weekend’s double-header oval event at Iowa Speedway, where its use will be mandatory. The strength of the part has increased by 60 percent over the previous design.



https://www.msn.com/en-ca/autos/news/indycar-dallara-produce-wheel-hub-update-after-indy-500-flying-wheel-incident/ar-AA1e4z8C?rc=1&ocid=winp1taskbar&cvid=406afe37ff104cd5a6c85cd51414b3c8&ei=6

pfc_m_drake
07-20-23, 06:38 AM
Racer Link (https://racer.com/2023/07/19/indycar-continuing-analysis-of-kirkwoods-indy-500-crash/?utm_source=RACER+%2F%2F+Newsletter&utm_campaign=3b91bd69d7-EMAIL_CAMPAIGN_2023_07_19_06_06&utm_medium=email&utm_term=0_-3b91bd69d7-%5BLIST_EMAIL_ID%5D)

I'm still thinking through the failure. Not sure I understand what happened just yet. Want to think it through a bit before I say anything else.

indyfan31
07-20-23, 02:24 PM
Well, if it did indeed "ripped the retaining nut off the threads on the back of the hub.", then the redesign has essentially doubled the length of threaded material and the thickness of ithe tabs. I'm surprised it wasn't done that initially but i don't know what else has to fit around it.