Vice Admiral William S. Sims, Commander, United States Naval Forces Operating in European Waters, to the Office of the Chief of Naval Operations
Chronological Copy. File No.
Cablegram Sent 19th August <1918> EWC
To Opnav, Washington. Serial No. 3211
Prep. by O-1 SX D.R.
3211 URGENT Your 44. There are 28 destroyers based Brest, of which 5 are under repair, leaving 23 active destroyers available for offshore escort. I consider that about 18 of these is maximum available for troops, leaving 5 to be divided between HN and HB convoys. On special occasion total number assigned to troops might reach 20, which number should not be exceeded until more destroyers are available. With average size of troop convoy about 12 destroyers are needed, and with 3 fast ships at least 6 destroyers are necessary, making total of 18 destroyers used in handling troops. As fast groups may arrive every 5 or 6 days this provides for 6 fast groups arriving every month, or a total of 18 fast transports, in addition to regular troop convoys. On account of abnormal size of group 58 it is not desirable to increase size of Group 59. It is most important to keep size of convoys as regular as possible so as to get full efficiency from destroyers and increase protection. 23219 3211.
Source Note: Cy, DNA, RG 45, Entry 517B.