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fesm_ndt

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Posts posted by fesm_ndt

    Dorking covenanter recovery

    in Tracked vehicles

    Posted · Edited by fesm_ndt

    that's right no turret and i had heard the track was used for the bovy covenanater, there were also roof plates missing and cooling shrouds but there was a reason it got pushed back into the hole and i am under no illusion about the poor condition. if it was easy we'd all have covenanters :)

    let's get it out and see what it's like. i plan to recover it in the next couple of weeks

     

    More intact than a Panzer rebuild

     

    Maybe those silver boxes I drag around the world fit a Convenantor

     

    probably best to start a seperate thread on the covenanter from denbies vineyard before it gets lost in the buried and abandoned tanks thread.

    i'll put the pics up later

     

    Lost, buried and abandoned no more

    Range Wrecks

    in MV Chatter

    Posted · Edited by fesm_ndt

    Actually depleted uranium is still radioactive "The enrichment process reduces the radioactivity of depleted uranium to approximately half of that of natural uranium".

     

    Apart from ammunition it is used for shielding isotopes because it is denser than lead or tungsten, obviously higher density is better for ammo also. In my job it is used to shield Iridium and Selenium sources, with the sources out the DU container still emits.

     

    You have basically 2 types of radiation to be concerned about, radiation exposure and radiation contamination.

     

    Exposure is the electromagnetic waves passing through your body like from an xray machine or isotope. Isotopes are split into Gamma, Beta, Neutron and Alpha. For exposure the larger ones are Gamma and Neutron as the pass through you at the speed of light and being large can juggle long chain molecules about i.e. DNA, sperm, white blood cells etc. The intensify of the exposure is 4 times higher if you halve the distance between you and it, so if it is in you hand the calculation gets interestingly high because even low intensities get rather high. Anyway lots of extra calculations are possible like whole body exposure or just hand etc.

     

    The biggest problem with depleted uranium is contamination as we are talking about digestion or internal contamination. DU on impact creates dust and it also corrodes. If this dust is ingested the oxides emit Alpha particles. In normal air a piece of paper stops them but if ingested they create the most damage to cell structure. It is quite a complex problem but the paper attached discusses the magnitude of DU contamination.

    toxics-02-00050.pdf

    Nazi gold train found in Poland?

    in Archaeology - WW1 to the end of the cold war

    Posted

    The missing ships in SE Asia was very well known as was on the historical groups whilst I was there and nothing was done to stop it. Just about every ship of note sunk an the onset of the Japanese attack no longer exist, although designated war graves.

     

    https://en.wikipedia.org/wiki/HMS_Prince_of_Wales_(53) In October 2014, the Daily Telegraph reported that both Prince of Wales and Repulse were being "extensively damaged" with explosives by scrap metal dealers.[41]

    Morris Tilly late model

    in Blogs of MV restorations

    Posted · Edited by fesm_ndt

    "Next to attach the passenger seat re-inforcing panel and seat brackets I drilled some holes in the floor so I could plug weld from the top to the panel and brackets. To get the panel and brackets to sit tight I lowered the body onto a chisel and block of wood and moved it after each weld.

     

    I seen on youtube restoration guys in the states use magnetically attached blocks of copper on the back sides of welds to disappate heat and apparently leaves a flusher finish. You can buy them on ebay.... but your cold chisel process got me thinking a 4mm bit of copper bus bar sandwiched in would be interesting

     

    Found the link

    Union flag upside down ?

    in I may be stupid, but......

    Posted

    I would say it still means distress on military bases.........

     

    As on the rare occasions it occurred the squaddie that did it would be in distress or more to the point would soon be :-D

     

    Our military flags had a rope lanyard attached for unfurling. short bit to the top with the long to the bottom.

    Chain renovation

    in I may be stupid, but......

    Posted · Edited by fesm_ndt

    A bit of both as first step is rocks and nuts or something inside, to get rid of the loose stuff.

     

    Second is acid treatment

     

    Last is the sealant

     

    Each step is supposed to be hold in you arms and shake it or slosh it vigorously..... pretty sure the novelty would wear thin pretty quickly.

     

    I figure this would work on bigger tanks also especially with the tilt type mixers

    Slimmer than usual WW2 Snail Brand spanner

    in I may be stupid, but......

    Posted

    Normal term is a 'tappet spanner' , Snap-on now term them 'low torque' and IIRC mark the LTA range as such

     

    That's interesting. I was taught yonks ago a tappet spanner was twice the length of a normal spanner with a normal spanner being 10 times the jaw width. All the online definitions quote the same thing for a spanner as a tappet spanner i.e. "[n] a wrench having parallel jaws at fixed separation (often on both ends of the handle)".

     

    I guess the English language is being watered down......... Is a bastard file still one or is it just a naughty file now

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