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30mm Apache Ammunition In-Bore and Hang Fire Investigation Team (IHIT)
- Article from:
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Army AL & T
- Article date:
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January 1, 2008
- Author:
- Insco, Kenneth; Hirlinger, John
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Copyright informationCopyright Superintendent of Documents Jan-Mar 2008. Provided by ProQuest LLC. (Hide copyright information)
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A primary warfighting munition for the Apache attack helicopter is the 30mm M789 high-explosive dual-purpose round. Considered the armament of choice for soft and light armor targets, it is fired from the M230E1 cannon at rates in excess of 600 rounds per minute. Unfortunately, the round has experienced low-order, in-bore detonations and hang fires periodically that have damaged the M230E1 cannon in incidents dating back to the 1970s. Several failure investigations were conducted in the 1980s and 1990s to determine the cause, mm resulting in design changes to the fuze, ignition system and moisture seals. The most significant change occurred in 1987 in the hope of eliminating a design flaw ...
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OUTDOORS NOTES
The Milwaukee Journal Sentinel;
November 27, 2005 ;
754 words
......possibility of misfires, in which powder does not ignite, or hang fires, in which there is a delay in the discharge. "It is very important...hunters keep their powder dry," Lawhern said. "Misfires or hang fires can and do happen. When this does happen they should point...
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Neptune okay as Hang fires home.(Sports)
The Racing Post (London, England);
January 30, 2003 ;
409 words
...Byline: Jonathan Kay. HANG LOOSE, who had shown promise at Sunderland whilst giving the impression that a more galloping track would suit, confirmed that view with an impressive performance in the heats of the William Hill Puppy Cup over 480m at Brough Park on Tuesday, writes Jonathan Kay. Graham
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'Unsafe' 50-year-old ammo sent to Colombia drug war.
United Press International;
May 11, 2000 ;
287 words
......machine gun. The warning said using older ammunition could mean slower muzzle velocity and increase action time resulting in hang fires and could cause possible injury to personnel as well as affecting performance and reliability. The newspaper said that the...
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U.S. sends Colombia `unsafe' shells from '52.
The Washington Times;
May 11, 2000 ;
Seper, Jerry;
763 words
......said the deterioration of the outdated ammunition could result in lower muzzle velocity and increase action time resulting in hang fires that could result in possible injury to personnel as well as affecting performance and reliability. The manual said only 50-calib...
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OUTDOORS; ON THE TRAIL
The Milwaukee Journal Sentinel;
November 25, 2007 ;
BOB RIEPENHOFF;
767 words
......possibility of misfires, in which powder does not ignite, or "hang- fires," in which there is a delay in the discharge. "It is very...hunters keep their powder dry," Lawhern said. "Misfires or hang-fires can and do happen. When this does happen they should point...
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Walk-On Warriors; A Father and Son Get a Taste of Hard Corps Life
The Washington Post;
September 12, 2000 ;
Rowan Philp;
787 words
......the misfire procedures on the 19, since we are dealing with high explosives here. You must count off 10 seconds in case it hang-fires; if it doesn't, you may have to use this steel rod to pry the grenade out of the breech and catch it before it strikes the...
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Lawmakers seek more funds for ammunition in drug war.(Nation)
The Washington Times;
June 27, 2000 ;
Seper, Jerry;
667 words
......said the deterioration of the outdated ammunition could result in lower muzzle velocity and increase action time resulting in hang fires that could result in possible injury to personnel as well as affecting performance and reliability. The manual said that only...
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Technology fuels renewed interest in blackpowder season
Charleston Daily Mail;
December 13, 2002 ;
JOHN McCOY;
563 words
......hunt with a muzzleloader anymore," Taylor says. "You can reach out to 150 yards without much trouble, you don't have as many hang-fires and misfires, and you don't have to put the gun in the bathtub to clean it. It's a far cry from when we poured powder into...
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LETTERS TO THE EDITOR.(Editorial)
The Boston Herald;
July 20, 2000 ;
676 words
......didn't store the ammunition in a separate locked container. Ammunition stored in a magazine weakens the spring, leading to hang-fires. He didn't secure the gun in a safe place and never should have stored it with a round in the chamber. - Donald Height, Natick...
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Albright finds guns for old ammunition.(Nation)
The Washington Times;
May 24, 2000 ;
Seper, Jerry;
696 words
......said the deterioration of the outdated ammunition could result in lower muzzle velocity and increase action time resulting in hang fires that could cause possible injury to personnel as well as affecting performance and reliability. The manual said only .50-caliber...
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