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- Newsgroups: sci.military
- Path: sparky!uunet!gatech!hubcap!ncrcae!ncrhub2!ciss!law7!military
- From: "Edward J. Rudnicki" (FSAC-SID) <erudnick@pica.army.mil>
- Subject: Re: Secret Weapons Flops Flops
- Message-ID: <C0171B.32I@law7.DaytonOH.NCR.COM>
- Sender: military@law7.DaytonOH.NCR.COM (Sci.Military Login)
- Organization: NCR Corporation -- Law Department
- Date: Tue, 29 Dec 1992 17:24:46 GMT
- Approved: military@law7.daytonoh.ncr.com
- Lines: 55
-
-
- From "Edward J. Rudnicki" (FSAC-SID) <erudnick@pica.army.mil>
-
-
- Brian Douglass writes:
- #>From dave pierson <pierson@empror.enet.dec.com>
- #>
- #>Back again, sniping at Secret Weapons Video. Down to their usual form. Subject
- #>this week was "flops, weapons that failed....)
- #>Lotsa misinformation about the Paris Gun of WWI (at minimum, their were two, not
- #>one and NONE of the film footage appeared to be of the actual gun. That last
- #>I would not mention, if that were all. "Failed due to breech wear", nope,
- #>failed due to counterbattery fire forcing moves, and loss of front line two
- #>attacks.
- #
- #What I remember reading about this gun, is that Krupp determined what the
- #barrel wear would be per shot, and cast shells of ever increasing size to
- #match the increased bore size due to use. Because of the tremendous
- #breech pressures, and powder composition, the barrel wear was extensive.
-
-
- There were three 21cm "Paris Guns". Barrel life was expected to be 60
- rounds, and sequentially numbered projectiles of increasing size were
- made for each of the tubes. Projectiles were forged and machined, not
- cast. In addition to bore wear, there was substantial erosion at the
- chamber throat, with the result that each projectile seated several
- inches further up the tube than its predecessor. Ramming depth was
- measured, chamber volume recalculated, and the propelling charges were
- adjusted accordingly. One of the guns suffered a catastrophic tube
- failure on firing, killing many of its gunners; I think it was from firing
- a projectile out of sequence.
-
- The "Paris Guns" were NOT a failure, in that they met their design
- requirement of hitting Paris from behind German lines. Whether this was
- a worthwhile goal is very debatable however.
-
-
-
- #As to footage, apparently the Germans did an excellant job at destroying
- #the guns, diagrams and any and all photos, save one or two. That someone
- #had found motion footage of the gun in action would have been a gold mine.
-
-
- Actually quite a bit of documentation and photos survived. See "Paris
- Kanonen: the Paris Guns and Project HARP", by Bull and Murphy.
-
-
-
- Ed Rudnicki erudnick@pica.army.mil All disclaimers apply
- "War must be looked upon as a business, and subject, like any other business,
- to business principles. War is the business of destruction of life and
- property of an enemy.....The most deadly and destructive implements of war
- are the most humane, and the producers of them may justly be looked upon as
- humanitarians." ----- Hudson Maxim (the other Maxim)
-
-