Re: SQUAT

["Andy" <amdixon@erols.com>]

Your telling us that Queen Elizabeth II squats?
The Royal Family would have us believe She doesn't even pee!!!
Andy

On 06/18/99 01:51 PM Arthur H. Smith said...
>
>
>Last night I watched a program about the investigation into when  the QE ll
>ran aground off Marthas Vineyard. The Captain and pilot both followed
>proper procedure and the only thing left was the charts showing the depth
>at 39 feet. The QE ll has a draft of 32 feet so there should have been
>adequate clearance. At first it was thought the charts could be wrong so
>NOAA redid the depth sounding and found a few spots a little less than 39
>feet in depth.
>
>The final finding was, as a ship moves through the water the force of the
>water moving under the ship creates a hole around the ship in the water 
and
>the ship actual sinks. While the water level along the water line stays the
>same the depression at the water line is closer to the bottom. This
>phenomenon is called "squat," so as a ship moves it squats down in the
>water. The full extent of the effect was not totally understood so at 25
>knots the QE ll sank 8 feet and the 7 feet of clearance disappeared. Hence
>it ran aground in water that was 39 feet deep.
>
>It ended with the announcer saying that after 20 years experience the
>captain of the QE ll didn't know "squat."