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 02:09:50 GMT
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Viewed:
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2766 times
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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"! ;-)
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 has 1 Reply:
 | | Re: MOCs: incl German WWII Railway gun
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| (...) 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 (...) (25 years ago, 29-Apr-01, to lugnet.trains, lugnet.build)
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Message is in Reply To:
| | MOCs: incl German WWII Railway gun
|
| 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: (URL) (...) (25 years ago, 28-Apr-01, to lugnet.trains, lugnet.build)
|
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