Silva compass

Discussion in 'Weapons, Equipment & Rations' started by Negligent-Discharge, Nov 18, 2009.

Welcome to the Army Rumour Service, ARRSE

The UK's largest and busiest UNofficial military website.

The heart of the site is the forum area, including:

  1. Negligent-Discharge

    Negligent-Discharge LE Book Reviewer

    For some reason my trusty Silva has got a bubble in it... any clues? Any idea of how to get rid of it without nicking another from Chris the QM at **** *********, ******?
     
  2. heat it up over a hexiblock till the bubble goes
     
  3. Negligent-Discharge

    Negligent-Discharge LE Book Reviewer

    You're havin a feckin laugh aren't you? What's the liquid in a Silva?
     
  4. no if he was having a laugh he wouls say "do you know the one about the englishman, irishman......"
     
  5. mate it works every time

    hexiblock warms the liquid up making it whole again
     
  6. http://www.uttings.com/?Categories/Navigation/Compasses/ExpertAdvice/compassinfo.html

    Bubbles
    At altitude (above 500 to 1000 meters) bubbles may form in the fluid. The cause is a drop in atmospheric pressure and/or low temperature. This can occur in any compass. The bubble will disappear, when normal conditions return.
    Obviously, air can get into the fluid through crack damage in the capsule. A hairline crack damage in the surface of the capsule may not cause a leak to occur for weeks or even months. Such damage is not covered by warranty.
    It is not economically viable, to repair a cracked capsule, but it can be replaced by your SILVA dealer at much less then the the cost of a new compass.
     
  7. That's how the Swiss army do it! Over, mind you, as opposed to on :-D
     
  8. Put it on the floor and smack it with a lump hammer, gets rid of the bubble every time!
     
  9. If you do not want to risk a naked flame, try putting it on a radiator. This also usually does the trick.

    Q.
     
  10. or in a saucepan with water

    simmer
     
  11. Agreed.....hammer is the solution to all problems.
     
  12. msr

    msr LE

    Unless you have an electrical problem.

    msr
    P.S. I successfully removed the bubble from my silva compass by microwaving it at hight power for a few minutes.
     
  13. Will the same work for my spirit level?
     
  14. Yes, may take 2 or 3 blows of the hammer though, due to the metal surround! :)
     
  15. msr

    msr LE

    No, it's a different type of bubble.