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- Newsgroups: sci.military
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- From: "Edward J. Rudnicki" (FSAC-SID) <erudnick@pica.army.mil>
- Subject: Re: Anti-aircraft
- Message-ID: <C1H2o3.EMM@law7.DaytonOH.NCR.COM>
- Sender: military@law7.DaytonOH.NCR.COM (Sci.Military Login)
- Organization: NCR Corporation -- Law Department
- Date: Tue, 26 Jan 1993 17:45:39 GMT
- Approved: military@law7.daytonoh.ncr.com
- Lines: 43
-
-
- From "Edward J. Rudnicki" (FSAC-SID) <erudnick@pica.army.mil>
-
-
- George Patterson writes:
- #>I always thought that AA shells were fused to explode at a given al-
- #>titude. Remember all those movies about B-17s over Germany, and all
- #>that flak?
- #
- #Some are, some aren't. Typically anything under about 40mm is contact
- #fused. They'd be throwing 88s at a B-17 - it's the only shell that could
- #get that high.
-
-
- The 8.8cm AA guns were really marginal against the B-17s and B-24s. They
- were functioning at nearly maximum altitude, the projectiles took a long
- time to get there, and the lethal volume was (relatively) small. As the
- bombing campaign went on the Germans introduced a 10.5cm AA gun, which
- was probably derived from the existing naval mount. Later came a 12.8cm,
- which indicates a pressing need, as this was never a standard German
- caliber before. A 15cm gun was in the works when the war ended.
-
- The fuzes on the German AA were mechanical time fuzes. The time of flight
- to various altitudes was known, so when engaging bombers the altitude was
- determined and the fuze time set accordingly. Obviously a high velocity
- reduced time of flight and increased accuracy. The Germans were apparently
- the first to use mechanical time fuzes in large numbers, which were both
- more accurate and more reliable than pyrotechnic time fuzes such as those
- used with shrapnel in the Great War. The Allies of course improved
- on this further by introducing proximity fuzes for AA work.
-
- Today, as George states, AA under 40mm uses PD fuzes, while 40mm and up
- can, and typically does, use proximity fuzes. Most AA fuzes of both types
- use a self-destruct.
-
-
- 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)
-
-