XPost: or.politics, alt.politics.trump, alt.fan.rush-limbaugh   
   XPost: alt.astronomy, rec.aviation.military   
   From: muratlanne@gmail.com   
      
   "pothead"  wrote in message news:v63l5p$270kl$2@dont-email.me...   
      
   It's all about risk vs reward and believe me they have departments that   
   study the risk vs reward of   
   every bolt and nut that is used on these advanced aircraft.   
   ---------------------------------------   
      
   I'm doing that analysis now for the fittings on a home made sawmill and   
   overhead gantry crane + hoist that need upgrades to handle logs larger than   
   they were designed for, thus the 6600 Lb chain. I spent around $400 on a   
   4000 Lb hanging scale and stronger bolts, nuts, chain etc, at working mans'   
   logging equipment rather than aircraft prices.  A few minutes ago the hoist   
   tested OK to 3500 Lbs on an oak log (that didn't budge).   
   https://www.fastenal.com/content/feds/pdf/Article%20-%20Bolted%2   
   Joint%20Design.pdf   
      
   This relates to the subject of devices failing tests:   
   "Most procedures use a double shear fixture, but variations in the test   
   fixture designs cause a wide scatter in measured shear strengths   
   (i.e., the variations in test procedures produce non-standard results)."   
      
   A gantry crane:   
   https://www.uline.com/BL_2857/Aluminum-Gantry-Cranes?pricode=WB9   
   35&AdKeyword=gantry%20hoist&AdMatchtype=e&gad_source=1   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)