[time-nuts] More on Old Loran

Rob Kimberley rk at timing-consultants.com
Tue Jul 15 13:45:09 EDT 2008


I found the following extract in David Irving's book "Apocalypse" about the
bombing of Dresden. Interesting stuff.....

Rob Kimberley

....The highest precision in navigation was required; only Loran could
provide this. The Royal Air Force's most up-to-date piece of electronic
long-range navigation equipment, installed only in a few aircraft, Loran was
to be used to make the initial fix on the target area, and Smith was
thereafter to rely on low-level visual marking for the attack. Loran, a
bulky piece of equipment housed in several metal containers strapped into
the already cramped cockpit of nine Mosquito high-speed bombers, was
originally designed to be installed in Lancasters and used in long-range
attacks in the Pacific theatre of the war. Basically an upgrade of the Gee
radio-beam navigation device, which spun an invisible web of beams across
the Western European ether, Loran did not suffer from the shortcomings of
Gee which permitted its use only within relatively short distances of the
transmitter chains. Using reflected radio waves from the 'E'-layer, Loran
had a range of some fifteen hundred miles; but the use of the 'E'-layers
limited its applicability to night flying only. Before February the R.A.F.
had never relied on it for an operation. The crews of the nine Mosquito
aircraft fitted with Loran were quickly trained in the operation of their
equipment; Bomber Command's navigation chiefs crossed their fingers and
hoped that on the night the gear would work perfectly; the English Gee
chain's radio beams, even when not jammed by the enemy, petered out some
miles west of Dresden; the signals picked up from the mobile Gee
transmitters moving up behind the Allied lines were unreliable and even they
did not extend to Dresden, the target city.


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Hal Murray
Sent: 14 July 2008 19:46
To: time-nuts at febo.com
Subject: [time-nuts] More on Old Loran

Lots of good info on hyperbolic navigation aids
  http://jproc.ca/hyperbolic/index.html

In particular, this is a nice description of Loran A
  http://jproc.ca/hyperbolic/loran_a.html

Here is info on how a Phantastron works.  It may not make much sense if you
don't know how tubes work.
 http://www.radarpages.co.uk/theory/ap3302/sec2/ch8/sec2ch8p137.htm
(Figure 3 is on the next page.  Follow the link at the bottom.)


-- 
These are my opinions, not necessarily my employer's.  I hate spam.




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