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Craig Johnson

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Everything posted by Craig Johnson

  1. yep, great filming which is the main thing here, but you got to make sure the content is 100% or be prepared to be shot down in flames, lol I give the continuity guy the elbow first ;-)
  2. Craig Johnson

    Zipline

    still not had time to get your hair cut then lol
  3. it would have been more effective five years ago, but then FR were more interested in trapping than control and the cat got out of the bag, so to speak. much more should be done on the control of OPM, unless we want to see our parks and POS closed buy the H&S nannies
  4. good job, last lump made the crane creak!
  5. its upto the manufacture to set the service life of its equipment, which cant be extended:001_tt2:
  6. OK 'the five year rule', if the loler inspector doesn't know any thing different to the contary, then the five year rule shall apply, but because some cant be bother to check otherwise/don't have enough product knowledge they just blanket ban everything over 5 years. it is also down to the you the user to be familiar with the user instructions of the equipment you use, where this information is found
  7. :sneaky2:they have been sending it to Belgium for years and they get around €23/m3 and back load with bottled water.
  8. I sub out and travel up to 1.5 hours a day, most weeks
  9. as far as I understand it might be the same model, but not the same spec, emissions is the main thing.
  10. can be a bit short on larger trees, when you need it the most:001_tt2:
  11. picked up a very nice 4lb elwell felling axe, with some of the original paint on the head for £15 yesterday
  12. I start with a 4.5 then change to a 4 when I start cutting into the tie straps, sharper but as said blunts quicker
  13. no, the CE mark is the number of the test house, that carried out a CE type inspection:001_huh:
  14. just to throw a thought out, how come the ZZ is been sold in the uk/Europe with out a CE mark? How do you classify it on your LOLER
  15. install the rope backwards, with the none spliced eye first:001_smile:
  16. more down to which knot, as you can't use 8mm for single leg knot
  17. yes its in the user guide:thumbup1:
  18. so why are you replaceing them then when the max working life of your petzl helmits is 10 years:001_huh:
  19. Please aee attached for details of the forthcoming Seminar to be held June 25th 2013. Ask the Experts Seminar.pdf
  20. to be correct its Kn not Kg as the log its self weights the same its just got more force, where force=massxacceleration, where A is 9.8m/s/s, so the longer/further the log falls the more it acceleration it has which will generate your peak force when arrested/motion changed. for easy maths every one uese 10m/s/s so for the first meter/second of fall 80kg x 5m/s/s = 400Kn because the log is accelerating from 0 to 10m/s/s the mean value for the fist second is 5 but the second second wil 10 to 20 with a mean vaule of 15 so for a two second fall 80Kg x 15m/s/s = 1200Kn and so on. this would be the froce generated when the the log is stubed off to a dead stop, letting things run will greatley reduce these figures. craig

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