Re: Query: Ballast on 17th century ships
- From: richardcasady@xxxxxxxxxxxxx (Richard Casady)
- Date: Sat, 30 Jun 2007 15:17:55 GMT
On Sat, 30 Jun 2007 05:34:34 -0500, Eystein Roll Aarseth
<eystaar@xxxxxxxxx> wrote:
On 2007-06-30, Kerryn Offord <kao16@xxxxxxxxxxxxxxxxxxxx> wrote:
Could anybody point me to easily accessible references on ships ballast
for warships and transports.
New York Nautical, at the lower end of Manhatten. thousands of
charts from everywhere and books.
Find a merchant officer textbook. Mine has lots of space devoted to
stability calculations. Ballast in modern ships is generally water
tanks low in the hull. The smaller stuff has often used cast iron or
lead. I have heard of a ballast keel made of depleted uranium.
Danish and French Navy... in the early 1600s
I know Vasa had stone ballast. Batavia had lead (220 tons..)..
But anything on what ships might have stored deep in the hold in this
line.. size and weight of stones etc would be interesting... Images also.
One would think they would be in a handy size for handling by one man.
Say ten to fifty pounds. There is probably an optimum that shifts the
most weight per unit time.
A digression: there are buildings in East coast harbors made from
English stone that came over as ballest. If you load heavy cargo low
in the ship you may not need the stone. You definitely want it when
traveling empty.
Casady
.
- References:
- Query: Ballast on 17th century ships
- From: Kerryn Offord
- Re: Query: Ballast on 17th century ships
- From: Eystein Roll Aarseth
- Query: Ballast on 17th century ships
- Prev by Date: Re: Why is US installing ABM system?
- Next by Date: Re: Why is US installing ABM system?
- Previous by thread: Re: Query: Ballast on 17th century ships
- Next by thread: Re: Query: Ballast on 17th century ships
- Index(es):
Relevant Pages
|
