Alarm Within the Alert

Discussion in 'United Kingdom' started by CL1, Apr 23, 2021.

  1. CL1

    CL1 116th LAA and 92nd (Loyals) LAA,Royal Artillery

    Control Point: Alarm within the Alert: That authority be given to expenditure of a sum of £10, as the Council's contribution, as an occupier of property linked to the system, towards the cost of installing additional automatic equipment
    https://www2.harrow.gov.uk/Data/Council/19440318/Minutes/004_Emergency Committee_4 February 1944.pdf

    Work in factories and everywhere else was constantly interrupted by air raid warnings, when employees had the right to stop work and take shelter. Often, however, the bombers giving rise to the warning were still far away. The public warning system was a very blunt instrument, driving underground thousands of people in no immediate danger, and keeping them there twiddling their thumbs when they would have been better employed getting on with their work.

    To meet this difficulty a system called the Alarm Within the Alert was devised, and the Civil Defence Control staffs in the Metropolitan Boroughs of London were in some cases, Lewisham being one, entrusted with the working of it. Installed in our Control Room, it consisted of a writing table with a large map of south-east England propped up on it, covered by Perspex.

    This material had never been seen before, and its great virtue, as everyone now knows, was that it could be written on with the appropriate stilus and the writing rubbed off easily with a duster.

    Beside the map was a telephone directly connected to a gun site somewhere on Blackheath. On the other side of the map was a push button bell, which was connected to twenty or more factories in the district. The Blackheath gunners were, of course, in communication with the Royal Observer Corps on the Coast, our first and vital defenders who, with the aid of their binoculars, kept vigilance at all times. They were still needed, even after the invention of radar, the next line of defence.

    When enemy aircraft approached the coast, our direct line would ring, and we in the Control Room would be connected so that we were eavesdropping on the "plots" passed to the site, from the Observer Corps or Radar, for the Ac Ac gun to be fired with the correct range and bearing. From these plots we indicated the course of the enemy on the map. This was quite an exciting addition to our more humdrum duties, and, though we all had to train to know what to do, Tiddles and I were soon the usual two on our shift to cope with the Alarm within the Alert System, soon called "the Hushmum", as we were sworn to secrecy as to its existence and purpose.

    Required secrecy about matters of this kind came under the Official Secrets Act, Clause 18B, (but I have no idea to what clauses 18A or indeed 18C might have referred).

    This Alarm within the Alert System caused quite a flutter among the people on the Local Authority Staff who provided the greater part of the Civil Defence Control. There were ten groups of/ about a dozen people culled from the staff in the Town Hall, Libraries and other establishments situated near the Control Room, and each group was on duty one day in ten, a "day" being twenty-four hours. Each group had an officer-in-charge drawn from people in a senior position on the staff. The Civil Defence Controller for the Borough was the Town Clerk, and the Deputy Controller was the Deputy Town Clerk. The Message Room staff to which Joanna and I belonged saw the clock round in eight-hour shifts, and dealt with the day-to-day happenings between air raid warning times, as well as being on duty during alerts. When the Officer-in-Charge was in the Control Room, we were responsible to him.






    BBC - WW2 People's War - "Hushmum" - Alarm within the Alert
     

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