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Nick Bradbeer
Works at UCL Naval Architecture and Marine Engineering Office
Attended University College London
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Nick Bradbeer

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It's the ship design season again. With our MSc students coming to the end of their group ship design exercise, I have half a dozen ship concept designs to produce renders of. I'll post them here as I go.
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Almost but not quite; the towed arrays are pulled behind very large semi-submersibles. (The ship is mostly a hangar and launch system for those submersibles.)

Nick Bradbeer

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UCL Makespace's theme this week is origami, so I should get my hand back in.
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Those snow chains I was talking about earlier. A quick midnight test in three inches of snow suggests that they work wonderfully.
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I didn't meant to intend it that way.

But just so you know, chains on tires are used due to the rotation of the tires. Once you hit a specific rotation per minute, the chains will clear themselves of snow and debris. The heat from the friction of the rotating tire also warm the chains, which further helps the chains clear themselves of snow.

Often when you see someone in a 4 wheel drive vehicle spin their tires prior to making a run, they're trying to clear the tread in the tire. Some of them are just morons and overdo it, but it does actually serve a purpose. A clean tread will grip to the ground better as opposed to a tire with it's tread thickly coated in mud or snow acting like a slicked tire, no tread.

The reasons studs usually work better is because the separation between the studs is too great to actually hold snow. Studded tires also tear the hell out of pavement, that's why their illegal in most states. Plus the sole of your foot will adapt and contour better to small studs rather than chains.

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I was reading this article on BBC news, and I thought the defence budget figures were interesting, particularly when you divide the defence budget by the number of serving personnel, to get a sort of "annual investment per soldier" figure.

USA: $739bn - $470k per soldier
China: $89bn - $40k per soldier
UK: $63bn - $360k per soldier
Russia: $52bn - $50k per soldier
India: $32bn - $20k per soldier

Obviously the USA is out in front on both counts, but I'm amazed by how close the UK comes on investment per soldier. (Even assuming China and Russia mask their defence spending a bit, they're an awful long way behind.)
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Doing a quick bit of maths:
Item USA/UK
Budget 12
Personnel 9
Tanks 28
Aircraft 15
Submarines 6

Based on those numbers, compared to the US, we spend a more of our money on people and submarines.

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Submarine Design class of 2011 projects. Stereo laser sintered nylon, in roughly 1:400 scale
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The SF boat should be in some disruptive scheme. You know which one.

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One etched name plate. A little bit messy in places where the masking wasn't perfect.
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Acrylic paint. It's not the greatest option. Masking is the area I need to work on the most. Never managed to get the hang of toner transfer.
Have him in circles
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Just posting this because I thought it was an interesting (terrifying) story, and I only saw it in the office copy of Janes Defence Weekly. Back in December the Russian Navy had a dockyard fire on the Delta-IV class misile submarine Ekaterinburg - apparently wooden scaffolding caught light and set fire to the rubber accoustic tiles which clad her hull.

The exciting part is the Russian Navy (in the shape of Vice Admiral Vitko, commander of the Northern Fleet) just admitted that the boat had nuclear weapons on board at the time; they are "not always removed from a submarine before docking due to the complications of handling nuclear weapons." Glad I don't live anywhere near Murmansk.

(Link to original BBC news story with the denial that the boat was armed.)
http://www.bbc.co.uk/news/world-16357000
A fire breaks out during repairs to a Russian nuclear submarine at a shipyard near the northern port of Murmansk, say officials.
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Had us a tad worried when we heard....

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So - there was just enough snow in Regent's Park to build an igloo today. We braved the cold and assembled this in about three hours. By the four hour mark, we were in the pub drinking mulled cider. Next time, I reckon we'll take a spare half-dozen buckets - there were plenty of passers by who would have been happy to help.
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Awesome!

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With London getting very excitable about a couple of inches of snow, and the prospect of a few more to come, I've finally gotten around to rip^H^H taking inspiration from +Will Segerman & +Ruth Fillery-Travis and making some snow chains for my shoes. I'll post pictures when I'm finished, but they're pretty similar to the ones linked below.

(If you're interested in making things, the rest of Will's site is worth a read too.)
Snow Chains for Shoes. January 2010. Brighton has been hit with a load of snow and ice. My house is at the top of a steep hill. Me and my girlfriend Ruth decided to make some snow chains for our shoes...
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They were amazing today. Walking back off Regent's Park with Si, I hadn't even realised the path we were on was slippery until he commented that it was hard going.

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Christmas Tree - the flat's really bit too small for a real one and we're not going to be at home much over Christmas. Foam board, three No.26 scalpel blades and about an hour.
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So, does it have slots and tabs ready to be punched out to make it into a Nautilus or anything else?

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If you're planning on rapid-prototyping some 3D models you've produced (as I'm sure most of you are) you should really be aware of Netfabb Cloud. Take the horribly broken STL mesh your software has output (I'm looking angrily at you, 3d Studio Max, and especially at you, Paramarine), upload it to their web service, and receive a clean mesh ready for printing three minutes later. And free, so long as you don't mind receiving their newsletter.

I heartily endorse this product and/or service.

cloud.netfabb.com
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Not sure I remembered to take picturesof them, but I printed Richard some stainless steel cufflinks a year or two back. Shapeways are great.

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Final destination for the name plate - a carry case for a Samsung tablet.
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I'm really not an expert, but sure, if you like.
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Have him in circles
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Lorenzo Frigerio's profile photo
Jinath Premaratne's profile photo
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Work
Occupation
Postdoctoral Research Associate at UCL, teaching ship design, submarine design and classical hydrostatics, conducting research in naval operations analysis, and working up the odd ship design when I think nobody's looking.
Employment
  • UCL Naval Architecture and Marine Engineering Office
    Research Associate, 2011 - present
  • UCL Design Research Centre
    Research Student, 2008 - 2011
Basic Information
Gender
Male
Story
Tagline
Naval architect
Education
  • University College London
    PhD Naval Architecture & Ocean Engineering, 2008 - 2013
  • Durham University
    MEng Engineering, 1998 - 2002
  • University College London
    MSc Naval Architecture, 2003 - 2004