Spyglass Air Bottles?

Discussion in 'Weapons, Equipment & Rations' started by Paddy_SP, Mar 18, 2012.

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  1. I've just bought an old Spyglass thermal imager that came out of a surplus sale. As is ever the case with these things, there are various bits missing - the main one being that it has no air bottle. There must be hundreds of the bleddy things sitting in various disposal warehouses, but can I find any? Nope. So - I would be most grateful if anyone here would be kind enough to point me towards a source!
     
  2. Why the feck are you buying that you madheeed!?!

    O651 6830 99 786 2222 - PURE AIR BOTTLE 2.4 LTR (Were a couple of grand each when they were in the system.)

    (2.4 LITRE CYLINDER PAINTED INFRA-REDREFLECTING PAINT NATO GREEN WITH VALVE (99-225-3607).CHARGED TO 33O BAR MAX AT 20 DEG C)

    You'll need a CEPA unit too! (Luckily these were only about £70000 each though!) :)
     
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  3. No need - I've got a dive compressor! :)
     
  4. 330 Bar?
     
  5. I don't think that will cut it.
     
  6. I was the BAOR equipment manager when that (and the chieftain TI sight) came into service. There was a major argument about whether HPPA bottles should not be classified as explosives. The CEPA filling plant was not much better.

    HPPA bottles were destroyed if they failed proof or were scrapped. As I recall, you only had to scratch the paint more than 2 cm to fail one..

    The air has to be 1. Very high pressure 2. VERY clean and 3. VERY VERY dry. Using a diving compressor will not cut it I'm afraid..

    I would suggest your chances of getting it running are fairly minimal, even if you could get the goniometer down to working temperature, I would think the jet would clog before very long. The goniometer sensor is probably banjaxed anyway.

    I would STRONGLY reccomend you do not arsse around with this kit - the chances of it blowing up in your face are much greater than you getting it to work..
     
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  7. Scratches that went deeper than the very thick green paint all the way to the metal were a write off, any that just didn't seem 100% were written off, anything dodgy looking in the valve - write off and most of all; any submitted by a mong of a storeman/CEPA biff got binned!

    It was hard enough getting it going with the correct equipment - if you ain't got proper air then you won't have a hope in hell!

    If you do get hold of a spare semi-charged one you can put it on a bonfire to dry the air and recharge it! (This only works if you video it though!)
     
    • Like Like x 2
  8. doh! how much did it cost you?
     
  9. Many thanks for the most useful information, Chaps. :)

    My dive compressor will only go to 300 bar (4,440 psi), but as the Spyglass's max system pressure is 4,500 psi, it's close enough for me.

    The point about the air needing to be both very clean and very dry is very much noted - I will talk to my compressed air specialist to see what he can provide me with in the way of filters and driers.

    I use similar high pressure bottles on some of my firearms-rated air rifles, so I'm well aware of the safety issues. Indeed, I may well decide to make a conversion mount so that I can fit one of them.

    With regard to why I'm messing about with one of these - I live out in mid-Devon where the local agriculture is predominantly that of traditional hill-farms. In other words, mostly sheep. At this time of year, that means lots and lots of lambs. And foxes. This, as I'm sure you can imagine, is not a healthy mix. I'm fortunate enough to have developed a reputation for being very good at finding and dealing with said foxes (NV + .22-250) - and this has brought me open access to well over 8,000 acres of prime shooting land (over 60,000 acres if you count that of my mates).

    I don't just shoot wildlife though - I've also written about 20-odd books on the subject, and I'm very interested in the filming potential of TI. If you look on YouTube under 'DrFoxonic', you'll be able to see some clips I've recorded with my other TI kit.

    Talking of which - some of you may have seen a recent thread of mine concerning a Pilkington Thermal Lite that I bought via an MOD disposal sale. While this is a fantastic area observation system, at 7kgs - without the tripod, it's somewhat too large to carry alongside all the other kit I use. To get around that, I also wear a super lightweight Solo TI S2 Stealth around my neck above my binos (day) or NV monocular (night).

    I don't know whether the Spyglass will bring anything helpful to the party, but I'm a bit of a technologist, so if nothing else I hope to learn more about the nuts and bolts of TI. It would be good, for instance, to see if I can hack into the electronics to access the video signal so that I can feed it into a recorder.

    As for what I paid for it - it was quite a lot of money, but if I decide to move it on, I should be able to do so at a price that will cover all my costs. These things are also very desirable for counting deer populations, and if my other TI kit is anything to go by, it'd be very good at that.
     
  10. Shot in the dark, try the local fire brigade they use TI, you never know they may even charge the bottles for you.
     
  11. Very much in the dark. I'm familiar with the Thermal Imaging cameras that firefighters use, and they don't use air. I also used to operate a pure air plant for TI, and with the right filter/driers, diving quality air would be more than acceptable. Dominick Hunter would be a good company to start with, or Draeger.
     
  12. Thank you for the helpful info - that is great to hear! :)
     
  13. Alternatively, white spot nitrogen is as dry as you'll ever need, though a particulate filter may be of use.
     
  14. Ah - that's also interesting to hear. How does it compare from a cooling perspective?