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Dilz

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About Dilz

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  1. I have a IML Resi F-400 with the electronic unit I got for a bargain from a retiring Arborist. I used it fair bit the first couple of years i owned it but not so much now. The thing is the yearly calibration costs - quite high with the electronic unit - IM wondering if it's entirely necessary as i don't use it very much and it says on the website that it is advisable, not compulsory to have it configured every year. That said a juicy bit of inspection work is looking like its heading my way - I'm wondering about using the Resi as an additional tool for some sonic tomography. This will be a full written report job for a government agency - Will I be potentially at risk for including the findings of the resistance drilling in the reports using a device that has gone past the date for annual calibration (by a couple of years....). In my own mind yes - I'll be better off sending it off for calibration and service just to make sure I'm covered - but I wish they would have a setting per number of readings made rather than run of an internal clock.
  2. Hello! Looking for some recommendations for companies offering the LOLER competent person course - preferably close to North Lincs.
  3. Dilz

    life span of a wire core flip line

    Though it aint about the cost - its about the snap hook.
  4. Dilz

    life span of a wire core flip line

    The blood runs a thick blend of Scotts and Yorkshires finest - so spending money is something my genes take to without protest.
  5. Dilz

    life span of a wire core flip line

    crikey - never thought of that... - Yeah the doubles are great - I honestly can't see why they changed them.
  6. Dilz

    life span of a wire core flip line

    5 years of use - to me = 5x(365x8) = loads of life left in it yet - they say use is one week per year for 5 years - thats way conservative imop (probably covering their arse) Its like the Treemotion only has a lifespan of 3 months (at least when i first read the small print some moons ago on the TM)
  7. Dilz

    life span of a wire core flip line

    So what is it for flip lines then?
  8. Dilz

    life span of a wire core flip line

    They were epic for smashing through ivy covered ash trees - saw a bloke nearly slice one with a 660 in the tree...i manage well with 13mm - though the cover does make a difference.
  9. Dilz

    life span of a wire core flip line

    that sounds about right - not too much harm in changing it now - there has started that whisper of - am i sure this is a sounds bit of kit - and that has always been the prelude to changing it out - that said I've got 15 year old krabs that I feel sound on. And i guess i could get use to not using the old two-way snap hook - but to be honest it will be very sorely missed having tried other karabiners and the 3 way snap hook.
  10. Dilz

    life span of a wire core flip line

    id guess mine is - its an old yale one though - it is the same type that the guy was using the broken - but it was maybe 12 years old....
  11. A while back a lad in Sweden took a fall as his flip line had rusted behind the thimble - apparently couldn't been seen as it was under the rope cover - anywhoo - my flip line has a good few years on it (6/7??) - and i dont want to change it as it has the good old two way snap hook on it - I have no idea what the shelf life of a flip line is....but my current one looks alright to me. I am pretty much of the mind though if I'm starting to question it is best to replace it.
  12. You think deep and dangerous thoughts! But yeah - a top tie with SRT generates a lot less force on the anchor point.
  13. Exactly - the rope (black marlow) has a fair amount of stretch in it and I think this system would give it a lot more stretch to absorb to logs when they first drop onto the line.
  14. Yeah a mate ive been chatting to has just brought that up - the ring at the top would have to take the load from the running end of the speed line and down to the base - but then the angle needs to be taken into account - A very rough calculation (and not allowing for any shock absorbtion and based on the log being snatched to a stop at the end of a rope) a 200kg log dropped 0.5m (generating 625kg of force) with an angle of 70degrees at the top ring would generate 775kg of force at the top point (387,5 at the base and other end of the speedline This is i reckon is quite a fair bit over the forces that should be generated using the set up i have in mind but its just a rough calculation
  15. more looking for confirmation on this question - but - it relates mostly to when having to drop stem pieces on a speedline when the line is set on the stem (i.e just below the chog about to be pushed) Instead of tieing off the speed line rope using a running bowline or timber hitch at the top - would a base tie and running the rope through a ring on a whoopie sling or similar at the top allow for greater energy absorption due to the increase of rope in the system? To me it makes sense and tomorrow i will try it out . I also think the forces will be better distributed rather than everything focused at the top.

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