Paper by EWT or AD (S) on lessons learned since 1939 from Sigint operation at BP...

HW 14/66

1943 Feb 1-10

Paper by EWT or AD (S) on lessons learned since 1939 from Sigint operation at BP with plan for a "perfect" Sigint organisation, Feb 2; EWT appoints Newman of RS to coordinate centralised research on special machinery for breaking cyphers Feb 1; EWT to C on security aspects of combining W/T I and MSS/Ultra in ME, Lt Col Sayer to EWT on Sigint support to ME; comments to EWT on YC report to Y Board on Sigint picture; AD (S) to Gp Capt Winterbotham on routing procedures for Ultra telegrams; WG Welchman to Lt Col Sayer on poor relations between Central Party of 6 IS and AS F Party under Handel Edwards, following complaints by Edwards; report by Sayer Feb 10 on his tour of Scottish Sigint stations Jan 28-31; JS Colman to Sayer on Malta cover and future needs; letter from HT Hunt to Sayer complaining about his treatment at GCWS Knockholt by HC Kenworthy, running the teleprinter interception and processing station there, Kenworthy accused of being unreceptive to constructive criticism, Feb 1, minute from Sayer to Kenworthy Feb 9 asking for results of attempts to improve quality of intercept at Knockholt, including attachment of HT Hunt; AS comparison of duplicated cover at Tean and Chicksands; Wing Cdr Jones of Hut 3 to HQ on problems with comms and distribution of Sigint signals between UK and N Africa; responsibilities of Air Watch in NS; liaison with WO and AM, AM cover plan for ME with comments from SALU Feb 6; liaison with US, EWT with Major Stevens in Washington and Bayly in NY, Bayly sends EWT Canadian intercept of French naval traffic Feb 1, letter from Hugh Foss at BP to Major Stevens in Washington on Japanese naval code; letter from C to DMI Major Gen FHN Davidson commenting on DMI's draft letter to US General Strong, informing him that US senior commanders were receiving a full Sigint service from the UK, EWT to Lt Col GA Bicher of ETOUSA on evaluation of US intercept in ME, of no value to BP, DDI 4 to Chairman YC on security worries over US Sigint in ME, Lt Col Sayer to EWT on security implications of US liaison, EWT to Chairman YC on US liaison, 6 IS to Bicher on supply of 6 IS support to Algiers; liaison with CBME, Director ready to return to UK Feb 5, passage being arranged Feb 8, Director to EWT on ME Sigint support to 1st Army, report from 7 IS of MEF on Axis comms associated with Crete, Dodecanese and Ciclades Islands Feb 7, BP summary of intelligence produced by 276 Wing in ME and recommendation for reorganisation of SALU to cope with intelligence on aircraft movements Feb 1, correspondence between AM and 380 WU Algiers re liaison with French; signal from Chairman YC to AD (S) commenting on proposed signal from BP to ME on orders for Sigint material distribution and destruction, reply from EWT drafted by Lt Col Sayer; minutes of meeting at BP on Feb 3 to consider non morse comms and BP aid to NIB and ADI (Science); letter to DDMI (O) from GHQ Home Forces with comments on paper proposing reorganisation of military Sigint and appointment of new DD (Y) post Feb 4; ME Military Y Report for Jan 1943

Public Record(s)

Open Document, Open Description

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Europe and Russia

Conflict

Maps and plans

Intelligence

Navy

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Operations, battles and campaigns