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Genn

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About Genn

  • Birthday 23/09/1970

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  • Website URL
    http://www.cranfield.ac.uk/about/people-and-resources/academic-profiles/sas-ac-profile/dr-glenn-gjt-leighton.html

Profile Information

  • Gender
    Male
  • Location
    doncaster/milton keynes
  • Occupation
    Scientist
  • Boat Name
    Joan Irene
  • Boat Location
    MK

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Gongoozler

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  1. Best way to use Li-ion is to keep charged, unlike Ni-cad which needed to be run flat then charged, this with Li-ion actually damages the battery. Genn
  2. Willowbridge marina on the GU has hardstanding for DIY'rs and are happy for people to work on their own craft. I am there and have had no issues with anyone. And it is quite close to Northampton. Genn
  3. Padauk also turns red when cut. Genn
  4. You do not need 12v socket unless that is what you want. Screwfix sell 240v sockets which have a regulated 5v usb incorperated into it, much easier to instal and probably cheaper too. Glenn should have included, you just fit the new facia in place of an excising 240socket
  5. Huge advances, yes, defying the laws of physics, no. The issue is heat dissapation, with such things as laptops this is easy reduce voltages ipso facto currents thus lower thermal budget and shrink case. High power devices cannot by thier nature be adressed in this way, until breakthroughs are made in room temperature superconducting materials ΔT will always be high in large current applications. Ignore thermal issues and a laptop sized inverter is achievable, just chuck it into a tank of fluorinert with a chiller and away you go. Glenn
  6. If you look very closely at the images in post #37 it appears as though the two pieces of the stringer which were butt welded, were not even butted up together. Probably indicating the fabricator could not be arsed to grind a fillet and left the gap to fill with weld, which he patently failed to achieve leaving the welding bead to take all of the stress. This resulted in the cracking of the weld at the top of the stringer, evident from the corrosion visible in the pictures which allowed all of the mounting plate to flex, stress harden and crack. Glenn
  7. Explanation would be 'any kind of crap lying around', it looks as though the stiffening stringer cracked at the top of the totally pointless weld (for the sake of a single piece of bar), causing the high stress flexural failure of the plate. Glenn
  8. Yes cast iron can be welded using MMA but it is not such an easy process, the whole piece needs to be heated prior to welding and then cooled slowly over a long time Hrs. So if you took it to someone to have this done it may cost as much as a new plate. Glenn
  9. Hi Roger, These appear to be the size you require but have 3 hole fixings, http://www.houseofbrass.co.uk/product.php?product=704 or there is this but there is no width info http://www.castinstyle.co.uk/product.php/1850/kirkpatrick-brass-fleur-de-lys-pull-handle-564b and this http://www.pickardhardware.com/180mm-fleurdelys-pull-handle-each-p-803.html?osCsid=f49298ef33b255faed6dcd05121c52c2 but without knowing the style of yours ....... try looking at this google search IMAGES https://www.google.co.uk/search?channel=sb&q=brass+door+pull+handles+fluer+de+ley&rls=org.mozilla:en-US:official&tbm=isch&ei=JWvRU9KNE7TY7Aaxh4DICg#q=brass+door+pull+handles+fleur+de+ley&rls=org.mozilla:en-US:official&spell=1&tbm=isch there are many available. Regards Glenn
  10. Which is probably why a no quible replacement . Glenn
  11. It is a fractured weld isn't it? certainly looks that way if you look to the back there is a weld bead, and also along the top, admittedly it looks bad because there is no evidence of champhering for the bead. Glenn
  12. Hi Starman To find out if you have a current draw from the baterries with just the master switch on disconnect the main live and put your multimeter in circuit to measure current draw, or if you have one use a clamp meter. Once you have done this you can make a more informed decision on wether your baterries are US. Glenn
  13. Thanks all for the replies. Glenn
  14. Thanks Kae, Looks like ones I have seen must have been blacked brass then, I saw some at Crick on Viking boats that appeared to be welded but could be wrong .. Cheers Glenn
  15. Granted, could do that but would also like the nice domed bit on the outside, are these types of fittings not available? BTW thanks for the reply
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