Re: Spot the deliberate mistake
Tony Sale <tsale-BY/[email protected]>
| Newsgroups | gmane.science.cryptography.bletchley-park |
|---|---|
| Message-ID | <[email protected]> |
In message <200504291300.j3TD00MC015850-Xi4jO7MRO7ceF4Ui59n7hQ@public.gmane.org>, Geoff Sullivan <[email protected]> writes >No one has yet... >I presume the black out referred to below was the introduction of M4. This was >in February 1942. Re-entry to the German Naval codes must have been mainly due >to the heroic actions of Fasson and Grazier on October 30 1942, rather than the >USA 4-wheel Bombes. I think Shark was mostly read after the end of 1942. >American journalists and script writers rarely get Enigma history correct... > >cheers, > >geoff > > > >Codebreakers' next task is preservation >Saving the Dayton building that turned the tide of WWII >By Jim DeBrosse > >Dayton Daily News >DAYTON - During World War II, Britain and America worked closely togethe= >r to break the German Enigma codes, an effort that saved millions of live= >s by shortening the bloody conflict in Europe by two years, some experts = > ><SNIPPED> > >Desch - the father of Debbie Desch Anderson - is credited with designing = >an American version of Britain's Enigma-busting Bombe that enabled the al= >lies to re-enter the German naval code in 1943 after Bletchley Park had b= >een blacked out for months. > ><SNIPPED> Geoff, the March '43 blackout was when the German Navy changed the Short Weather Code book. The extra speed of the American Bombes allowed very weak contact signal and crib menus to be run in order to break back into Shark and re-construct the new Short Weather Code book. There just was not enough UK bombe time to do this. regards-- Tony Sale