thin_air_aaron Posted November 23, 2005 Share Posted November 23, 2005 I was doing some reading trying to figure out if I want to go lightweight with foam or hardshell and came across this article. Most of you probably know alot of this already but I found it informative and figured I'd pass it along... http://www.thebmc.co.uk/safety/tech/articles/issue19_helmet1.pdf Quote Link to comment Share on other sites More sharing options...
Dr_Crash Posted November 24, 2005 Share Posted November 24, 2005 Great document. It's interesting to see that the HB Dyneema helmet, whose disparation is lamented by many, doesn't fare that well on top impacts (vertical energy abosrption). Given that's where these pesky rocks always fall on me, I don't regret not finding it. drC Quote Link to comment Share on other sites More sharing options...
Nick Posted November 24, 2005 Share Posted November 24, 2005 Dr Crash, I think you may have misunderstood the test data. The HB Carbon Dyneema helmet actually has one of the two best rating for top impacts. The force (in Kn) shown in the test results, is the force delivered to the neck of the test dummy. This means that a small number is good. I was happy to see that my old standby, the Edelrid Ultralight, has low force numbers in all types of impact. When you take away all of the HB helmets (no longer availlable) the Edelrid might be the best over all. The Ecrin Rock is a bit better in top impacts, but a lot worse for front hits. The bucket's got to fit your noodle though. Quote Link to comment Share on other sites More sharing options...
Dr_Crash Posted November 24, 2005 Share Posted November 24, 2005 Yes I realized yesterday (w/o Internet to correct my post): it's the energy transmitted, not absorbed. The legend is misleading but the text is clear. drC Quote Link to comment Share on other sites More sharing options...
TREETOAD Posted November 24, 2005 Share Posted November 24, 2005 (edited) Anyone know where you can pick up the hb carbon fibre helmet? Edited November 26, 2005 by TREETOAD Quote Link to comment Share on other sites More sharing options...
darstog Posted November 26, 2005 Share Posted November 26, 2005 I called around and an unnamed vendor is going to be producing the carbon fiber helmets. They should be avail early 2006. Quote Link to comment Share on other sites More sharing options...
TREETOAD Posted November 27, 2005 Share Posted November 27, 2005 I think I found them here, I haven't got an email back from them yet so I don,t know if they have any or not. http://climbhigh5.com/Climbing/Helmets/HB_Carbon_Dyneema_Helmet/hb_carbon_dyneema_helmet.html Quote Link to comment Share on other sites More sharing options...
TREETOAD Posted November 30, 2005 Share Posted November 30, 2005 I think I found them here, I haven't got an email back from them yet so I don,t know if they have any or not. http://climbhigh5.com/Climbing/Helmets/HB_Carbon_Dyneema_Helmet/hb_carbon_dyneema_helmet.html I think these guys are out of biz as well. Quote Link to comment Share on other sites More sharing options...
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