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- Newsgroups: sci.military
- Path: sparky!uunet!gatech!hubcap!ncrcae!ncrhub2!ciss!law7!military
- From: "Robert I. Eachus" <eachus@oddjob.mitre.org>
- Subject: Re: Helos vs. tanks (Was Re: info wanted : tank tactics used in
- Message-ID: <BzzCLt.An@law7.DaytonOH.NCR.COM>
- Sender: military@law7.DaytonOH.NCR.COM (Sci.Military Login)
- Organization: The Mitre Corp., Bedford, MA.
- References: <ByJI6s.24E@law7.DaytonOH.NCR.COM> <Bz3v30.2v4@law7.DaytonOH.NCR.COM>
- Date: Mon, 28 Dec 1992 17:29:53 GMT
- Full-Name: News Service
- Approved: military@law7.daytonoh.ncr.com
- Lines: 50
-
-
- From "Robert I. Eachus" <eachus@oddjob.mitre.org>
-
- In article <BzEz5C.F3t@law7.DaytonOH.NCR.COM> viking@iastate.edu (Dan Sorenson) writes:
-
- >Artillery shells? Are you serious? Where did you get the idea that
- >Phalanx can shoot down incoming shells? Have you got any idea what their
- >speed is, or does the radar have time to intercept them?
-
- > I based this idea purely upon the speculation that an arty
- > shell would be of a similar radar cross-section as a small missile,
- > which the Phalanx seems to find rather well, and also upon the idea
- > that shells, while quick, aren't particularly fast if they're large
- > enough to destroy a main battle tank. An M1 is going to shrug off a
- > 105mm round easily enough (in many situations), but a 155 or better?
-
- Right, but wrong. Phalanx would do a good job against most HE
- rounds, and would be probably be useful against HEAT, but it would do
- nada against the main AT rounds which are usually some form of sabot
- round. A sabot round is a high velocity sub-caliber round.
- Sub-caliber means that its diameter is less than the diameter of the
- barrel. The sabot (French for shoe) is the piece behind the
- projectile that is full diameter. Most sabot rounds will discard four
- or five pieces of junk, usually chunks of aluminum that would make
- much better radar targets than the actual penetrator. The penetrator
- is either tungsten carbide or a uranium metal filled uranium ceramic
- and weighs about 10 pounds. (The Phalanx fires similar, but much
- lighter, projectiles.)
-
- Since the penetrators are long but small (about 1" diameter) you
- could probably deflect one at short range, but you wouldn't deflect it
- much. (The image that comes to mind is trying to deflect a
- tractor-trailer truck with your car, and the truck is surrounded by
- other cars coming at you as well.) So you would end up firing
- hundreds of rounds to (possibly) take out one enemy rounds. Might as
- well use those rounds on the enemy instead. If a tank fires at
- another tank with lethal intent it is direct fire, so you can see him
- too.
-
- Of course a Phalanx on a tank chassis would make a nice air defense
- system, and would weigh about the same as the main gun.
-
- --
-
- Robert I. Eachus
-
- with Standard_Disclaimer;
- use Standard_Disclaimer;
- function Message (Text: in Clever_Ideas) return Better_Ideas is...
-
-