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Re: What precision is required in cel nav?
From: Paul Dolkas
Date: 2015 Jul 22, 23:48 -0700

According to Ballard in The Discovery of the Titanic (pg 199), the location of the actual collision with the iceberg is known, since the ship broke in two, and the massive boilers sank directly down from that position:

“This means the Titanic sank roughly 13.5 miles east southeast of her CQD position. She is just south of her calculated course, but well to the east.” Both the California and the Mount Temple steamed to her reported position and found nothing there; the Carpathia was en-route to this position as well when it came across the Titanic’s floating life boats.

I think there have been long discussions on this site about why the Titanic’s navigators were so far off in their calculations. The viewing that night must have been near perfect: no moon and a crystal clear sky.

Paul Dolkas

From: NavList@fer3.com [mailto:NavList@fer3.com] On Behalf Of Henry Halboth
Sent: Wednesday, July 22, 2015 10:57 PM
To: paul@dolkas.net
Subject: [NavList] Re: What precision is required in cel nav?

If I remember correctly CARPATHIA steamed directly to within sight of TITANIC's lifeboat distress signals.

But then again, I wasn't there!

Henry

On Wed, Jul 22, 2015 at 9:41 PM, Paul Dolkas <NoReply_Dolkas@fer3.com> wrote:

I seem to recall reading that the Titanic did NOT know where it was, causing the rescue ships (when they finally did arrive) to go to the wrong location.

Paul Dolkas

From: NavList@fer3.com [mailto:NavList@fer3.com] On Behalf Of John D. Howard
Sent: Wednesday, July 22, 2015 12:12 PM
To: paul{at}dolkas.net
Subject: [NavList] Re: What precision is required in cel nav?

Geoffrey,
In your no GPS world the aircraft looking for you will know it's own position to + or - 10 miles. LOL
The Titanic knew where it was.
In good fun - John H.

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