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About SimonBrown

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  1. Regulars will have seen and remember the orthophotos of the cargo decks and their array of vehicles and motorbikes I shared a while back. At 1mm per pixel the level of detail was within my own boundaries of what was acceptable. But the main site, including the debris field of Hold No. 4, couldn't be processed at such fine detail. Computer hardware limitations restricted it to 10mm per pixel, which for a 5 acre site isn't too bad...but I felt things could improve. And now they have. Following the arrival of some new and beefy hardware I can process the site at 2mm per pixel. Onli
  2. The 3D model will always be good for measuring and looking around to get a sense of scale and place. These ortho photos have always been possible but their online viewing is only just coming of age - the file size for the lower cargo deck view is 2.79Gb. The online viewer takes these massive images and breaks them into tiles - smaller areas we can view one at a time - so we never have to pull that amount of data down from a server. Other things would work too. Let me run a little test...
  3. It's just an incredible time capsule. Never occurred to me there was contemporary air in the cargo too.
  4. The diameter of the circular "bell housing" bit is 683mm/26.88in and the square section is 540mm/21.25in. Overall length is 820mm/32.28in. No. Hold No2 has Fordson, Crossley Q and Leyland Retrievers plus the Nortons. Bedford OYC bowsers are in the deck above - the Upper Deck.
  5. A few years ago I posted a thread about some mystery objects on the lower cargo deck of the SS Thistlegorm. If you don't know this wreck, its a scuba diver/military/aviation/locomotive enthusiast's dream dive with the cargo holds full of BSA M20, Norton 16H, Albions, Crossleys, Bristol Blenheim spares...Stanier 8F locos. Fellow diver Alex Mustard started researching the cargo several years ago and following the 3D survey I did we added to the work and published an iBook. To cut a long story short...when I posted the thread about mystery objects it was not possible to view the ortho
  6. Out for a bit of mountain biking R&R on the common today and what do I see? A Jackal on its side...missing engine and gearbox: Jackal in 3D I couldn't help myself but stop and shoot a few hundred images and turn it into a 3D model. Looks like its used for casualty egress training or something like that?
  7. Finally I got a little spare time to start thinking and tinkering with the torpedo engine. The barrels will be going for some light soda blasting at some point, mainly to remove a little surface corrosion. One nagging thought; the bolts that hold the barrels onto the crank case are (like most things) somewhat unusual. Normally I would expect to see studs, but not here. What we have are pan head bolts with a tiny pip on the underside of the pan head. As far as I can tell the pip is intended to stop the screw rotating on assembly...the slot is a nightmare to get to when reassembl
  8. Another "Maybe needed one day..." document...this time an operators manual for a T-62.
  9. Like many I am having a tidy up...and finding many precious things. Many years ago I acquired a manual for the Continental R-975EC-2 radial tank engine. There remains a hope one day I will get my hands on an engine (preferably with the rest of the tank attached). In the meantime, I just enjoy the photos, illustrations and technical descriptions. However, if anyone has one of these bad boys for real and needs pages scanning please let me know.
  10. No problem - thanks for looking. I agree; a die nut would be best, for many reasons. This is just one reason - the opportunity for cockup being extremely high - I have put the project down. Time to think about how to solve it rather than rush... I think the idea of a spigot to follow the bore might be sound...I need to have a look at them. Square or hex drive would be required too. I will post up some more photos.
  11. That would be great - its 1 5/8" Whitworth fine 20tpi.
  12. I will have to check - as of now I am probably one of the few who a) work at home a lot so nothing much changes and b) engaged in something that is seen as important enough to keep going, for now at least and c) I'm looking ahead & planning for a time when I too have more time on my hands. But its a good point. Some of the threads need more TLC than others. The other factor is how these were originally made - the threads were cut prior to assembly/welding onto the barrel...so there is limited room and there is no way a standard die wrench will work...like everything else, the torpedo
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