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Q: Cannonball vs Chain Shot Damage ( Answered 5 out of 5 stars,   1 Comment )
Question  
Subject: Cannonball vs Chain Shot Damage
Category: Science > Physics
Asked by: kimmbel-ga
List Price: $10.00
Posted: 30 Dec 2004 11:14 PST
Expires: 29 Jan 2005 11:14 PST
Question ID: 449312
A friend and I were having a discussion on whether chain shot or a
regular cannonball would kill more men standing in a single file line
in front of a cannon.  Which is it?
Answer  
Subject: Re: Cannonball vs Chain Shot Damage
Answered By: tutuzdad-ga on 30 Dec 2004 12:54 PST
Rated:5 out of 5 stars
 
Dear kimmbel-ga;

Thank you for allowing me to answer your interesting question?and what
a cool question it is too!

The answer depends on how many men were in this single file line and
how great the distance was. Let?s assume we have ten men in single
file and the distance is some reasonable number of years away so that
the velocity of the load is powerful enough not only to reach them but
also to penetrate them:

Cannonballs were designed for deep penetration when fired directly at
an object and were also used secondarily to fling debris (rocks, wood,
etc) at nearby infantrymen in hopes of scoring a higher collateral
damage. Though there were definitely larger ones, it was not uncommon
for a cannonball to be about the size of a regulation softball and to
weigh about 4 lbs. If fired directly at a group of men in single file
(rather than being used as collateral artillery) it would most
assuredly kill the majority of them (a couple of men at the end of the
line might survive their injuries).

Loose shot or chain-link was the forerunner of non-bursting rounds
(such as Zimmerman?s Hail Shot in 1573 and later known as ?Case-Shot?,
perfected by none other than Major-General Henry Shrapnel in 1784). In
medieval times it was only one of the many types of loads that were
used primarily as anti-personnel shot and were intended to target an
opposing rank during battles and skirmishes as opposed to a single
file of men (cannons weren?t reliably accurate enough to target a
single file anyway). Nails, pellets, bolts, scrap metal and other such
loads were also used. In the days of cannons, chains were not nearly
as strong as they are today. When fired from a cannon the links tended
to break and the result was an enormous shotgun-like blast that
sprayed a field of fire with shot. So to envision a cannon
successfully firing a chain down range and the chain remaining intact
and acting as a kind of killer weedeater is not realistic. It
effectively exploded in every direction meaning that no single thing
down range sustained the full force of the entire blast. One of the
reasons chain was used specifically was because it could be picked up
all at one time and loaded into a cannon quickly. Aside from the
resulting multi-projectile blast, that was about it. The same result
could be achieved by loading a cannon with a bucket full of loose
chain links, only that would take a bit longer between shots. Other
than that, there isn?t much difference. The chain was simply
convenient, and it worked nicely. If fired directly at a group of men
in single file, provided the men were some distance away, if would
certainly kill, or terribly wound the first several and possibly
injure many others. Because of the likely spread and subsequent miss
of at least a portion of the chain shot, it is more likely in this
scenario for the last few men in this line to survive.

On the other hand, depending on the powder load, if all ten men were
standing directly in front of the cannon, lined up in single file, and
took the full force of the blast at point-blank range, they'd all
likley be killed even if the cannon was loaded with coconuts. The
powder blast alone would probably send bone shrapnel through all of
them.

I hope you find that my research exceeds your expectations. If you
have any questions about my research please post a clarification
request prior to rating the answer. Otherwise I welcome your rating
and your final comments and I look forward to working with you again
in the near future. Thank you for bringing your question to us.

Best regards;
Tutuzdad-ga ? Google Answers Researcher



INFORMATION SOURCES

TIN CASE SHOT IN THE 18TH CENTURY
http://www.militaryheritage.com/caseshot.htm

HENRY SHRAPNEL
http://inventors.about.com/library/inventors/blshrapnel.htm



SEARCH STRATEGY


SEARCH ENGINE USED:

Google ://www.google.com


SEARCH TERMS USED:

Chain 

Case shot

Shrapnel

Cannon

Cannonball

Penetrate

Projectile

Velocity

Power

Clarification of Answer by tutuzdad-ga on 30 Dec 2004 12:55 PST
Oops. Sorry for the spell checker error in the first paragraph. That
should have said: "...reasonable number of YARDS away..."

tutuzdad-ga

Request for Answer Clarification by kimmbel-ga on 30 Dec 2004 14:05 PST
Just for clarification: assuming average range and that the chain
didn't break apart how many men do you think each would kill?

Clarification of Answer by tutuzdad-ga on 30 Dec 2004 14:44 PST
Well, as long as we're making estimates about improbable situations
I'd have to say that a 4 lb steel ball vs 4 lb steel intact chain
would probably end up with about the same results. Four pounds of
steel traveling at x miles an hour is four pounds of steel. The chain
is probably more likley to glance off after striking the first two or
three victims (provided it didn't wrap around the first one it hits)
and be diverted whereas the surface area of a round ball is still
going to travel through abdomens largely unimpeded.


tutuzdad-ga
kimmbel-ga rated this answer:5 out of 5 stars
Thanks for the answer.  I know it's improbable but wanted someone who
had looked at a bit of cannon research to give an educated guess.  You
have been most helpful.

Comments  
Subject: Re: Cannonball vs Chain Shot Damage
From: nanoalchemist-ga on 14 Jan 2005 22:51 PST
 
I think it would also depend on if the single file line was orthogonal
to the barrel or the cannon or directly in line with it. Then you'd
have to consider if the dispersial of the chain shot for an orthoganal
line at the "ideal" distance would be more lethal.

And Im assuming that cannon era medical casualties are not to be
counted in the fatalities, eg "we hacked off his arm, and then the
gangrene got him."

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