---------------------------------------------------------- Pulsar-List Digest Archive --- Total Messages Posted Thu 04/28/16: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:22 PM - Re: Modified Nose Wheel Upgrade (Eclat2) ________________________________ Message 1 _____________________________________ Time: 02:22:36 PM PST US Subject: Pulsar-List: Re: Modified Nose Wheel Upgrade From: "Eclat2" Common 'graded' hardware, like Grade 5 & 8, is pretty ordinary stuff available at most hardware stores. It's not bleeding edge technology. Grade 8 is stronger (harder / stiffer) than Grade 5, but it's not really 'strong' in the overall spectrum of high strength hardware. If you want strong, then don't buy from your local hardware store. The major difference between Grades 5 & 8 is hardness, and stiffness comes along with that. When overstressed, Grade 5 will bend, but it won't break and fall off. Ronko's nose wheel assembly bent, but it didn't fall off, and his last landing was an uneventful one... which is a good thing in many ways. Had he used a Grade 8, the bolt probably wouldn't have bent when the Grade 5 one did. But if it ever did receive a load that caused to to fail, it might have broken and parts might have fallen off. Personally, I'd rather have a crooked wheel than no wheel. The better solution than 'Graded' hardware would be to use a truly high-strength bolt, available from Aircraft Spruce, Leaf, Earl's, etc. The downside there is that if everything else is built on the aircraft ragged edge of lightness, then the failure point would move on up into the landing gear leg somewhere. Personally, I like the idea of having something that gives without breaking, like the Grade 5 bolt. Couple that with regular inspections, and the chances of an actual 'break' failure should be minimized. Replacing a bolt once in a while isn't a hardship if it also means nothing falls of in flight, and that I can count on having landing gear when I touch down. I'm also into motorsports, and use Grade 5 suspension bolts. If a Grade 5 bends too easily, I go to a larger Grade 5. But I don't go to something brittle that might actually 'break' as a failure mode, and pitch me off into the weeds. Just my opinion... Tim Read this topic online here: http://forums.matronics.com/viewtopic.php?p=455589#455589 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message pulsar-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Pulsar-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/pulsar-list Browse Digests http://www.matronics.com/digest/pulsar-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.