Subject:
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Re: MOCs: incl German WWII Railway gun
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Newsgroups:
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lugnet.trains, lugnet.build
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Date:
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Sun, 29 Apr 2001 06:05:04 GMT
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Viewed:
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1163 times
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In lugnet.trains, Mladen Pejic writes:
> Wow! I can safely say Shaun, I have not found anybody who has such a love and
> talent for building detailed WWII war machines... The K5 is yet another
> great example your incredible skills and building techniques.
>
> Now get crackin' on building "Dora"! ;-)
I've thought of building 'Dora' myself, but this would present some
problems. 1.The gun was mounted on a double track (and curved at that!) LEGO
does not make more than one radius of curved track, so the model should be
displayed on straight track only. 2. The barrel for the gun?- I've figured
that the macaroni bricks should work well for this (reinforced by round
bricks running down the center). Other than that, the construction should be
pretty straightforward, but it WILL be an expensive MOC with the cost of all
the wheelsets to begin with. Hell, the new roof on my V188 will be close to
$100 alone! -Harvey
> Mladen Pejic, over and out!
> http://members.attcanada.ca/~milovan/index.htm
>
> In lugnet.trains, Shaun Sullivan writes:
> >
> > Hi All,
> >
> > I've uploaded some pictures of my latest MOCs - a German K5 Leopold 28
> > cm Rail Gun, a freight car to carry the ammo, and a flatbed car carrying
> > a Sd.Kfz 250 Halftrack.
> >
> > The flatbed car is pretty self-explanatory. It can be found here:
> >
> > http://www.brickshelf.com/cgi-bin/gallery.cgi?f=4334
> >
> >
> > The K5 Leopold can be found here:
> >
> > http://www.brickshelf.com/cgi-bin/gallery.cgi?f=4333
> >
> > This gun was built and used during WWII by the German army. The shells
> > it fired were 28 cm in diameter, and had a range of about 30 miles. The
> > most famous use of the K5 Leopold was during the Allied invasion of
> > Italy. Two K5s were hidden in train tunnels, and came out several times
> > a day to lob shells toward the Allied troops landing at Anzio; this went
> > on for FOUR months. After firing, the gun would be immediately returned
> > to the shelter of the tunnel, so Allied planes were never able to locate
> > them before they were abondoned before advancing Allied forces. The two
> > guns collectively became known as "Anzio Annie" by the Allies, as they
> > were under the impression that only one gun was being directed against
> > them.
> >
> > The gun itself is actually motorized - the battery box takes up half of
> > the space in the freight car immediately following the railgun chassis.
> > The switch is behind a small hinged panel on the roof of the freight
> > car. This battery box is used to run a motor on the railgun chassis,
> > which is geared to a cam which pumps a pneumatic cylinder. The
> > pneumatic cylinder is then used to extend an air piston, which raises
> > the gun. The gun can be lowered by flipping a switch hidden just behind
> > the breech of the gun. The gearing is such that the gun takes a full 30
> > seconds to rise completely - I wanted the motion to be very slow and
> > deliberate, rather than fast and jerky. The lowering takes somewhat
> > less time, just under 10 seconds.
> >
> > The gun runs on 12 axles, grouped in threes with one stud spacing in
> > between them. A rigid construction of this kind binds on the curves, so
> > the wheeltrucks are articulated.
> >
> > Surprisingly enough, the entire assembly easily navigates the tight LEGO
> > curves. In order to accomplish this, the ammo loading platform at the
> > rear of the railgun chassis can move - it rotates on a turntable, and
> > the entire platform can slide forward and backwards along this axis of
> > rotation. On the tight curves the gun chassis pushes the platform out
> > of the way. The motion is opposed by LEGO rubber bands, so when the
> > train straightens out again the platform slides back into its original
> > position.
> >
> > On top of the platform is a small ammo cart that runs along small
> > tracks. The crane is used to load the ammo onto the cart, which then is
> > led forward to the breech of the gun.
> >
> > Information on the K5 and other Rail Guns, including the absolutely
> > immense 80cm "Dora" (which, fyi, rode on 40 axles !!!!!!!!), can be
> > found at:
> >
> > http://www.railwaygun.co.uk/
> >
> > There are also a few pics of my entire Germna WWII train to date;
> > included are the BR52 locomotive and tender, the K5 Leopold railway gun,
> > a freight/ammo car, and the flatbed car. An astute observer may notice
> > that the flatbed car is actually running without wheels in these pics -
> > I have a limited number of wheelsets, and I don't seem to have enough to
> > keep all the cars runing at once right now. More are on order ... and
> > yes, that is all the track I have right now :D
> >
> > More to come ...
> > Shaun
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Message is in Reply To:
 | | Re: MOCs: incl German WWII Railway gun
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| Wow! I can safely say Shaun, I have not found anybody who has such a love and talent for building detailed WWII war machines... The K5 is yet another great example your incredible skills and building techniques. Now get crackin' on building "Dora"! (...) (24 years ago, 29-Apr-01, to lugnet.trains, lugnet.build)
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