"Matt Colie" wrote in message
news:

What I am waiting to see the impact of is the Double-Double
tankers.
These are double hull tankers with twin power plants and even
including
twin sterring engines - complete redundency. No single device
failure
can leave the ship without manuerving capability.

Matt Colie - Licensed Marine and ex-tankerman

Bob Crantz wrote:

I thought double hulls would end all spills.



No way that "double hulls" will guarantee no spill a la Exxon
Valdez...... there's a good chance that even with a double hull, she
would have breached some tanks, considering how far up into the hull the
rocks went, though hopefully the cargo tank breaches will be greatly
limited versus single hull vessels.
One big question still remains and hopefully won't be answered..... a
1,000' container ship doing 25k slams into the side of a tanker. How far
will she penetrate if she hits between webframes?
BTW all ships have multiple steering motors.... it's the rudders that
are generally singular.

Keep in mind "otn's law"
Anything designed by man, built by man, operated by man, maintained by
man is subject to catastrophic failure due to any one or combination of,
the above factors.

otn