Home |
Search |
Today's Posts |
|
London Transport (uk.transport.london) Discussion of all forms of transport in London. |
|
LinkBack | Thread Tools | Display Modes |
#11
|
|||
|
|||
Explosion on district line
In article , Arthur
Figgis writes ISTR once reading about an aircraft being sent to fly past a major German warship, in the hope that when the ship came under attack shortly afterwards the Kriegsmarine would think that the plane had happened to stumble across it, rather than suspect that someone might be reading their messages and finding them that way. That was part of standard policy for "Ultra". Basically, no information from Enigma decrypts could be used in the field unless there was a plausible non-crypto-related explanation that the Germans would believe. Of course, the information could be used to generate that "explanation". So, in the example I think you're thinking of, a decrypt would indicate where and when an attack submarine was meeting with a tanker submarine to refuel - this had to be done on the surface and neither could submerge during the process. So a reconnaisance squadron was instructed to send a plane out in that specific area. To their surprise, they would find the two subs sitting there and could whistle up some bombers. If the submariners survived the experience, they would report that they got spotted by a plane. -- Clive D.W. Feather |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
District/Hammersmith Line Friday | London Transport | |||
District line, High St Kensington/Earls Court | London Transport | |||
District line, High St Kensington/Earls Court | London Transport | |||
District line, High St Kensington/Earls Court | London Transport | |||
District line, High St Kensington/Earls Court | London Transport |