Catalogue description Operational evaluation (OPEVAL) of Route Survey Sonar Type 2048 in a mine detection role

This record is closed and retained by Ministry of Defence


Details of DEFE 67/132
Reference: DEFE 67/132
Description:

Operational evaluation (OPEVAL) of Route Survey Sonar Type 2048 in a mine detection role
Date: 1984 Jan 01 - 1984 Jan 31
Held by: Creating government department or its successor, not available at The National Archives
Former reference in its original department: OEG(RN) 5/83
Legal status: Public Record(s)
Closure status: Closed Or Retained Document, Open Description
Access conditions: Retained by Department under Section 3.4
Closure criterion: Retained in departments on security or other specified grounds
Lord Chancellor's Instrument: LCI 110 - Series containing retention instruments
LCI signed date: 2012 December 13
Reconsideration due in: 2022

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