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From: chidsey@smoke.brl.mil (Irving Chidsey)
Newsgroups: sci.military
Subject: Re: 16" Battleship gun info wanted
Message-ID: <1991Apr5.092207.8451@amd.com>
Date: 4 Apr 91 15:53:35 GMT
References: <1991Apr4.041931.11567@amd.com>
Sender: military@amd.com
Organization: U.S. Army Ballistic Research Laboratory, APG, MD.
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From: Irving Chidsey <chidsey@smoke.brl.mil>

In article <1991Apr4.041931.11567@amd.com> emery@aries.mitre.org (David Emery) writes:
<	Does anyone know the muzzle velocity, time of flight, or max
<ordinate for a 16" gun firing at max range?  
<	Apparently USN&WR said in an article that a 16" gun firing at
<a range of 25 miles, the projectile would travel 50,000 feet into the
<air.  Some people asserted this was correct, others said it sounded
<much too high (assuming low angle fire).  

	Max range and low angle fire are incompatible!  Max range means
an elevation angle of around 45 degrees.  Air resistance and possibly
the curvature of the earth affect the angle.  50,000 feet is about 9.7
miles, which should not be too far from the maximum ordinate for a near
45 degre elevation angle.  I see no reason to object to the figures
given in the article.

-- 
I do not have signature authority.  I am not authorized to sign anything.
I am not authorized to commit the BRL, the DA, the DOD, or the US Government
to anything, not even by implication.  They do not tell me what their policy 
is.  They may not have one.		Irving L. Chidsey  <chidsey@brl.mil>