The V-3 (German: Vergeltungswaffe 3, ("Vengeance Weapon 3") was a German World War II large-caliber gun working on the multi-charge principle whereby secondary propellant charges are fired to add velocity to a projectile, built in tunnels and permanently aimed at London, England.

The Germans planned to use the weapon to bombard London from two large bunkers in the Pas-de-Calais region of northern France, but they were rendered unusable by Allied bombing raids before completion. Two similar guns were used to bombard Luxembourg from December 1944 to February 1945.

The V-3 was also known as the Hochdruckpumpe ("High Pressure Pump," HDP for short), which was a code name intended to hide the real purpose of the project. It was also known as Fleißiges Lieschen ("Busy Lizzie").

They detail the shelling of Luxembourg in the article.

[–] Kidplayer_666@lemm.ee 3 points 5 months ago (1 children)

I wonder if it had a chance of actually working

[–] Zombiepirate@lemmy.world 15 points 5 months ago

By the time that the Ardennes offensive began on 16 December 1944, Kammler received orders from OB West (German Army Command in the West) to begin firing at the end of the month, and the first gun tube was ready for action on 30 December 1944. Two warm-up rounds were initially fired, followed by five high-explosive shells which were fired in sequence, attended by Kammler. The muzzle velocity was approximately 935 metres per second (3,070 ft/s).

The second gun tube was brought into operation on 11 January 1945 and 183 rounds in total were fired until 22 February 1945, with 44 confirmed hits in the urban area. From the 142 rounds that struck Luxembourg, total casualties were 10 dead and 35 wounded.

[–] fuckwit_mcbumcrumble@lemmy.dbzer0.com 11 points 5 months ago (1 children)

I really wish there was a way for the Germans to keep coming up with their wacky inventions without the whole death, murder and, suffering part. WW2 Germany was coming up with some insane "how did you even think of this" shit. And sometimes it worked.

[–] PugJesus@kbin.social 7 points 5 months ago

Ideas brought by all that delicious panzerschokolade

[–] wintermute_oregon@lemm.ee 6 points 5 months ago (1 children)

Iraq was working on one as well though many years later

https://en.wikipedia.org/wiki/Project_Babylon

[–] Zombiepirate@lemmy.world 4 points 5 months ago (2 children)

It seems like the idea was revived for modern railguns, except instead of chemical charges they're electrical.

[–] HootinNHollerin 5 points 5 months ago* (last edited 5 months ago)

The nazi ww2 one is more similar to coil guns as the projectile is propelled by synchronized pulses. Rail gun is more similar to typical gun which has basically a single time pulse at the beginning (but magnetic field instead). There’s also light gas guns which have a gun power charge to move a plug that compressed a light gas like hydrogen Ina second chamber, which then bursts a membrane to then propel the projectile. Iirc sadam was doing light gas guns

[–] wintermute_oregon@lemm.ee -2 points 5 months ago (1 children)

Both have the same issue of excessive barrel wear. Main difference is rail guns use no explosives at all. It’s all kinetic energy. It’s insane how much of a punch they pack. My limited understanding is that’s why we have not put any in service. The go through barrels too quickly

[–] HootinNHollerin 2 points 5 months ago* (last edited 5 months ago)

True, the materials science just wasn’t good enough. The money was then diverted to hypersonic and laser weapons