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- Path: sparky!uunet!news.tek.com!tekig7!tekig5!drchambe
- From: drchambe@tekig5.pen.tek.com (Dennis Chamberlin)
- Newsgroups: rec.pyrotechnics
- Subject: Re: ringadingding
- Message-ID: <8052@tekig7.PEN.TEK.COM>
- Date: 21 Dec 92 20:15:21 GMT
- References: <FXc3VB5w165w@tsoft.net>
- Sender: news@tekig7.PEN.TEK.COM
- Reply-To: drchambe@tekig5.pen.tek.com
- Organization: Tektronix, Inc., Beaverton, OR.
- Lines: 20
-
- In article <FXc3VB5w165w@tsoft.net> bbs.byron@tsoft.net (Byron Reynolds) writes:
- >I was behind an earthen bunker of sorts about 20 feet away, and I was
- >situated in such a way that the danger of being hit with flying debris
- >was not an issue. However, I did not think about the "bang" enough.
- >
- >Well, I got my "bang", and lost my hearing for about 3 days. It started
- >with a shrill "sqeeeeeeeeeeeeeee" sort of sound that began building up
- >shortly after the blast, until all I was left with was pure "sqeeee".
- >
- Years ago I had considerable experience with 5-inch gunfire. When the gun
- was trained out abaft the beam, the distance from the bridge to the muzzle
- was perhaps 20-25 feet. The charge in the powder case was about 30 lb of
- smokeless, and the muzzle explosion sounded like a big door slamming.
- There was a definite blow you could feel through your clothes.
-
- In hundreds of rounds, no one ever reported a noticeable hearing loss.
- After reading of this and the problems suffered by an earlier poster
- from 1/8 tsp of NHI3, it would seem that the impulse shape has a lot more
- to do with hearing effects than the power of the explosion.
-
-