-H.M.S. Hood Reference Materials-
1941 CAFO 509 –W/T–Types 79, 79Y, 271, 279, 280, 281, 282,
284, 285, 286, 289 and 290–Allocation to Ships

Updated 12-Aug-2007

This document is a modern transcription of a small portion of Confidential Admiralty Fleet Order 509 from the year 1941. It concerns the allocation of radar to various Royal Navy warships. This excerpt only includes the information pertinent to Hood. The original file is held at the Royal Navy Library at the Royal Navy Base, Portsmouth. This Crown Copyrighted material is reproduced here by kind permission of the Royal Navy Library.

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C.A.F.O. 509. –W/T–Types 79, 79Y, 271, 279, 280, 281, 282,
284, 285, 286, 289 and 290–Allocation to Ships

(S.D. 01633/40. –6.3.1941.)

The following list shows the allocation of the above types to H.M. ships.

2. Figures in italics indicate–“Already fitted or being fitted during construction or repairs.”

3. Figures in brackets indicate–“Directors not yet fitted.  Sets may, however, be installed in anticipation.”

4. Ships affected are to insert an item, in their next Alterations and Additions list, Classification “A*,” to cover the work involved.

5. Supply will be arranged from Portsmouth without demand.

Note from web site staff:  The accompanying table consists of many ships which had or were to receive radar.  For the purposes of this website however, we’ve only included the sections pertaining specifically  to Hood.  If you wish to view the entire list, please visit the Royal Naval Museum Library in Portsmouth, UK.



Type and No. of set/s fitted or to be fitted









“ Hood ” . .         . .         . .






‡ = To be fitted with Type 279M, i.e., on one mast only.

End of transcription